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USB Flash Drive Speed Tests - Any Drive Size

Welcome to Speed Tests Web site for USB Flash Drives.
In this page, you can find the speed test results of USB flash drives, made by USBDeview utility. USBDeview make this test by writing a large file into the USB flash drive, and then reading back the same file to getting the read speed. The speed is calculated and displayed in Megabytes per second (MB/Sec). Be aware that all these tests are made by making a sequential read and write operations of a single file. When you use multiple small files, you'll probably get much lower read/write performances.

If you want to test the read/write speed of your own USB drives and share the results with other people, you can follow the instructions in this page: Test and publish the speed of your USB flash drive.

There is also a summary page, which contains a summary of speed tests for USB drives that accumulated 5 speed tests or more.

Search other USB flash drives:

Some Remarks

To more easily compare the speed of USB flash drives, you can filter the list according to drive size group:

1 GB or less 2 GB Group 4 GB Group 8 GB Group
16 GB Group 32 GB Group 64 GB Group Larger than 64 GB

Notice that the USB devices of last size group (above 64 GB) are not really flash drives. they are external hard disk drives plugged to USB. I originally created this Web site for flash drives, but because some people already submitted the speed test results of external USB disks, I added a group for them too.

Product NameVendor NameDrive SizeVIDPIDRead SpeedWrite SpeedSubmitter
Kingston DataTraveler 2.0 USB DeviceToshiba Corp.7.26 GB930654513.45 MB/Sec2.94 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.7.50 GB58f638713.08 MB/Sec2.99 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.1,953.06 GB48d123412.39 MB/Sec2.99 MB/Sec 
Duracell 32GB USB stickKingston Technology Company Inc.28.89 GB13fe550021.84 MB/Sec3.02 MB/Sec 
PNY USB 2.0 FD USB DevicePNY7.59 GB154b5b28.03 MB/Sec3.06 MB/Sec 
Lexar USB Flash Drive USB DeviceLexar Media, Inc.14.90 GB5dcc75c19.37 MB/Sec3.06 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.125.00 GB48d123410.05 MB/Sec3.07 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceToshiba Corp.14.42 GB930654427.23 MB/Sec3.08 MB/SecG
Generic Flash Disk USB DeviceAlcor Micro Corp.14.93 GB58f638717.64 MB/Sec3.09 MB/Sec 
Kingston HyperX Savage USB DeviceKingston Technology58.58 GB95116b329.56 MB/Sec3.11 MB/Sec 
Generic Flash HS-COMBO USB DeviceStandard Microsystems Corp.7.55 GB424222823.60 MB/Sec3.12 MB/Sec 
SanDisk Cruzer Glide USB DeviceSanDisk Corp.116.44 GB781557521.04 MB/Sec3.13 MB/SecSarge
Intenso Rainbow Line USB Device (3502460)Alcor Micro Corp.7.21 GB58f638714.48 MB/Sec3.15 MB/SecAxel06295
USB DISK 2.0 USB Device 14.42 GB655712118.43 MB/Sec3.16 MB/Sec 
SanDisk Cruzer Blade USB Device (SDCZ50-064G-B35)SanDisk Corp.58.21 GB781556723.67 MB/Sec3.17 MB/SecAxel06295
Generic Flash Disk USB DeviceAlcor Micro Corp.3.80 GB58f638716.50 MB/Sec3.23 MB/Sec 
BOSE 2GB (WerbeStick) 1.87 GB8644800e15.94 MB/Sec3.24 MB/SecAxel06295
CHIPSBNK v3.3.8.8 USB Device 1.94 GB1e3d209315.04 MB/Sec3.38 MB/Sec 
hp v250w USB DeviceHewlett-Packard7.50 GB3f0ae0721.54 MB/Sec3.43 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.14.53 GB58f638718.14 MB/Sec3.43 MB/SecNooran
Generic Flash Disk USB Device 62.48 GB0777720.57 MB/Sec3.46 MB/Sec 
Generic Flash-Disk USB DeviceMacAlly3.90 GB2222111111.00 MB/Sec3.46 MB/Sec 
Ut163 USB2FlashStorage USB DeviceTranscend Information, Inc.0.94 GB130716311.37 MB/Sec3.47 MB/Sec 
TOSHIBA TransMemory USB DeviceToshiba Corp.7.23 GB930654431.42 MB/Sec3.51 MB/SecKieran
JetFlash Transcend 8GB USB Device 7.42 GB8564100022.01 MB/Sec3.52 MB/Sec 
Teclast CoolFlash USB Device 2.0Alcor Micro Corp.14.86 GB58f638719.52 MB/Sec3.53 MB/Sec 
SanDisk Cruzer USB DeviceSanDisk Corp.14.44 GB781553023.57 MB/Sec3.55 MB/Secme
hp v251w USB DeviceHewlett-Packard14.82 GB3f05a4019.74 MB/Sec3.59 MB/Sec 
Verbatim STORE N GO USB Device 7.46 GB18a530222.71 MB/Sec3.60 MB/Sec 
USB FLASH DRIVE USB DeviceApacer Technology, Inc.3.73 GB1005b1139.91 MB/Sec3.61 MB/Sec 
JetFlash Transcend 32GB USB Device 29.09 GB8564100016.99 MB/Sec3.62 MB/SecARtecnico.net
Dispositivo de almacenamiento USBUnknown3.92 GBabcd123412.27 MB/Sec3.65 MB/Sec 
USB DeviceAlcor Micro Corp.14.45 GB58f638713.45 MB/Sec3.67 MB/Sec 
Verbatim STORE N GO 8G 7.21 GB18a530216.60 MB/Sec3.70 MB/Sec 
SanDisk Cruzer Glide USB DeviceSanDisk Corp.14.91 GB781557519.55 MB/Sec3.75 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.14.83 GB58f638712.82 MB/Sec3.75 MB/Sec 
SanDisk Cruzer USB DeviceSanDisk Corp.29.11 GB781553022.38 MB/Sec3.76 MB/SecAlinG
TOSHIBA TransMemory USB DeviceToshiba Corp.7.23 GB930654431.18 MB/Sec3.76 MB/SecKieran
SanDisk Cruzer Blade USB DeviceSanDisk Corp.7.21 GB781556720.61 MB/Sec3.76 MB/Secn-zandra
SanDisk Cruzer Blade USB DeviceSanDisk Corp.14.54 GB781556721.18 MB/Sec3.76 MB/Sec 
TOSHIBA TransMemory USB DeviceToshiba Corp.7.23 GB930654431.20 MB/Sec3.80 MB/SecKieran
TDKMedia Trans-It Drive USB DeviceImation Corp.7.19 GB71861914.92 MB/Sec3.82 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceKingston Technology28.92 GB951166518.47 MB/Sec3.86 MB/Sec 
VendorCo ProductCode USB Device 14.83 GBffff567811.85 MB/Sec3.89 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceToshiba Corp.7.25 GB930654526.22 MB/Sec3.89 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.7.45 GB781556718.74 MB/Sec3.91 MB/Sec 
TOSHIBA TransMemory USB Device in HS USB3.0+Toshiba Corp.7.23 GB930654431.22 MB/Sec3.91 MB/SecKieran
USB Mass Storage DeviceIntegrated Technology Express, Inc.1,933.53 GB48d123411.69 MB/Sec3.92 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.7.48 GB58f638717.39 MB/Sec3.92 MB/Sec 
IS817 innostor USB Device 7.45 GB1f7581722.40 MB/Sec3.93 MB/Sec 
Generic Flash Disk USB Device 62.50 GBcd12ef1819.46 MB/Sec3.94 MB/Secpippuspippus
Lexar USB Flash Drive USB Device (LJDTT16GASBEU)Lexar Media, Inc.14.90 GB5dcc75c29.76 MB/Sec3.96 MB/SecAxel06295
TOSHIBA TransMemory USB DeviceToshiba Corp.7.23 GB930654431.25 MB/Sec3.98 MB/Seckieran
Lexar JD FireFly USB DeviceLexar Media, Inc.7.45 GB5dca81016.92 MB/Sec4.00 MB/Sec 
SanDisk Cruzer Edge USB DeviceSanDisk Corp.14.56 GB781556b20.38 MB/Sec4.02 MB/Sec 
SMI USB DISK USB Device 8GB - DETECON (WerbeStick)Feiya Technology Corp.7.48 GB90c100026.33 MB/Sec4.03 MB/SecAxel06295
Patriot Memory USB DeviceKingston Technology Company Inc.14.43 GB13fe410018.18 MB/Sec4.03 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.14.84 GB58f638710.52 MB/Sec4.12 MB/Sec 
JetFlash Transcend 16GB USB Device 14.56 GB856410006.50 MB/Sec4.12 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceKingston Technology14.40 GB951166522.97 MB/Sec4.13 MB/Sec 
USB Mass Storage DeviceFeiya Technology Corp.14.44 GB90c100024.52 MB/Sec4.21 MB/Sec 
SanDisk Cruzer Glide USB DeviceSanDisk Corp.14.54 GB781557521.65 MB/Sec4.23 MB/Sec 
Generic Flash Disk USB Device 249.97 GB0777715.76 MB/Sec4.26 MB/Sec 
USB Mass Storage DeviceOurs Technology, Inc.0.49 GBea021687.60 MB/Sec4.27 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceToshiba Corp.7.55 GB930654517.52 MB/Sec4.29 MB/Sec 
PNY USB 2.0 FD USB DevicePNY7.44 GB154bc428.67 MB/Sec4.29 MB/Sec 
SAMUJANA (WerbeStick) - 4GBAlcor Micro Corp.3.74 GB58f638717.51 MB/Sec4.30 MB/SecAxel06295
JetFlash TS1GJF150 USB DeviceAlcor Micro Corp.0.50 GB58f638716.51 MB/Sec4.30 MB/Sec 
Verbatim STORE N GO USB Device 7.45 GB18a530415.21 MB/Sec4.35 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.1,953.06 GB48d123415.88 MB/Sec4.36 MB/Sec 
SanDisk Cruzer USB DeviceSanDisk Corp.29.79 GB781553020.42 MB/Sec4.41 MB/SecSarge
Generic Mass Storage USB Device 7.61 GB1908999918.70 MB/Sec4.42 MB/Sec 
SanDisk Cruzer 16 GbSanDisk Corp.14.45 GB781553023.43 MB/Sec4.46 MB/Sec 
SanDisk Cruzer Pop USB DeviceSanDisk Corp.7.45 GB781557721.91 MB/Sec4.60 MB/Sec 
General UDisk USB DeviceUnknown3.81 GBabcd123414.49 MB/Sec4.62 MB/Sec 
SanDisk Cruzer Edge USB DeviceSanDisk Corp.14.89 GB781556b18.27 MB/Sec4.65 MB/SecFT
Staples Relay UFD USB DeviceSanDisk Corp.3.72 GB781520220.47 MB/Sec4.68 MB/SecSarge
SanDisk Cruzer Blade USB DeviceSanDisk Corp.14.58 GB781556732.50 MB/Sec4.69 MB/Sec 
SMI USB DISK USB DeviceFeiya Technology Corp.7.20 GB90c100027.11 MB/Sec4.71 MB/Sec 
Lexar USB Flash Drive USB DeviceLexar Media, Inc.3.65 GB5dca79317.57 MB/Sec4.72 MB/Sec 
UFD 2.0 Silicon-Power8G USB DeviceKingston Technology Company Inc.7.43 GB13fe3e0016.99 MB/Sec4.73 MB/Sec 
SMI USB DISK USB Device-Team 8GB E902Feiya Technology Corp.7.49 GB90c100019.42 MB/Sec4.73 MB/Sec 
JetFlash Transcend 4GB USB Device 3.73 GB8564100015.36 MB/Sec4.78 MB/Sec 
General USB Flash Disk USB DeviceFeiya Technology Corp.3.74 GB90c100019.04 MB/Sec4.79 MB/Sec 
General USB Flash Disk USB Device 3.36 GB8644800b13.31 MB/Sec4.86 MB/Sec 
SanDisk Cruzer Edge USB DeviceSanDisk Corp.14.54 GB781556b20.56 MB/Sec4.87 MB/Sec 
SMI USB DISK USB DeviceFeiya Technology Corp.7.20 GB90c100027.20 MB/Sec4.91 MB/Sec 
Mass Storage Device USB DeviceSuper Top31.28 GB14cd125d17.43 MB/Sec4.95 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.7.45 GB781556721.72 MB/Sec4.96 MB/Sec 
USB Flash Memory USB DeviceToshiba Corp.28.87 GB930654421.29 MB/Sec4.96 MB/Sec 
Staples USB DeviceSanDisk Corp.3.73 GB781557318.46 MB/Sec4.97 MB/SecVinPep
SanDisk Cruzer Fit USB DeviceSanDisk Corp.7.45 GB781557120.12 MB/Sec4.98 MB/Sec 
TOSHIBA TOSHIBA USB DRV USB DeviceToshiba Corp.7.46 GB930140016.58 MB/Sec4.99 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.14.83 GB58f638723.04 MB/Sec4.99 MB/Sec 
USB 2.0 USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.3.76 GB125f023.12 MB/Sec5.01 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.58.59 GB58f63878.76 MB/Sec5.02 MB/Sec 
Verbatim STORE N GO USB Device 8MB Stick 7.45 GB18a530414.50 MB/Sec5.03 MB/SecCKidd
USB Mass Storage DeviceRealtek Semiconductor Corp.0.95 GBbda1699.53 MB/Sec5.03 MB/Sec 
JetFlash Transcend 32GB USB Device 30.23 GB8564100026.62 MB/Sec5.06 MB/Sec 
SMI USB DISK USB DeviceFeiya Technology Corp.7.54 GB90c100023.69 MB/Sec5.09 MB/Sec 
TOSHIBA TransMemory USB DeviceToshiba Corp.28.88 GB930654419.54 MB/Sec5.10 MB/Sec 
hp v218g USB DeviceHewlett-Packard15.14 GB3f0e50725.63 MB/Sec5.13 MB/Sec 
TOSHIBA TOSHIBA USB DRV USB DeviceToshiba Corp.7.46 GB930140017.52 MB/Sec5.17 MB/Sec 
SMI USB DISK USB Device 16GB - thomann (WerbeStick)Feiya Technology Corp.14.92 GB90c100021.02 MB/Sec5.23 MB/SecAxel06295
Generic- SD/MMC USB Device 124.96 GB2ba3122015.90 MB/Sec5.26 MB/Secilze
Sandisk SDCZ50-008G-B35 7.49 GB1908132027.55 MB/Sec5.28 MB/Secbar1004
JetFlash Transcend 16GB USB Device 15.00 GB8564100019.67 MB/Sec5.32 MB/Sec 
TDKMedia Trans-It Drive USB Device 16 GBImation Corp.14.88 GB71862416.79 MB/Sec5.33 MB/SecARtecnico.net
SanDisk Cruzer Switch USB DeviceSanDisk Corp.14.90 GB781557229.00 MB/Sec5.36 MB/SecEE
VBTM Store 'n' Go USB DeviceM-Systems Flash Disk Pioneers0.22 GB8ec88.04 MB/Sec5.38 MB/Sec 
Kingston DataTraveler C10 USB DeviceKingston Technology7.44 GB951164122.58 MB/Sec5.42 MB/Sec 
Imation ImationFlashDriv USB DeviceImation Corp.3.72 GB71867d20.41 MB/Sec5.43 MB/Sec 
Sony Storage Media USB DeviceSony Corp.7.32 GB54c5b824.77 MB/Sec5.47 MB/Sec 
Lexar USB Flash Drive USB DeviceLexar Media, Inc.14.92 GB5dca81d29.34 MB/Sec5.49 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.7.44 GB781556720.85 MB/Sec5.52 MB/Sec 
Kingston DT 100 G2 USB DeviceKingston Technology14.62 GB951165317.42 MB/Sec5.52 MB/Secmoonbind
USB Mass Storage DeviceRealtek Semiconductor Corp.1.88 GBbda16918.36 MB/Sec5.53 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.29.18 GB781556724.11 MB/Sec5.56 MB/SecMADD CAAT
USB Mass Storage DeviceFeiya Technology Corp.30.45 GB90c100019.05 MB/Sec5.56 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.30.25 GB58f638725.97 MB/Sec5.59 MB/Sec 
Sandisk USB Ultra USB DeviceSanDisk Corp.7.48 GB781556714.04 MB/Sec5.59 MB/SecGSH
USB DeviceFeiya Technology Corp.3.77 GB90c100029.08 MB/Sec5.63 MB/Sec 
SanDisk Cruzer USB DeviceSanDisk Corp.14.93 GB781540627.18 MB/Sec5.83 MB/Sec 
USB DISK 2.0 USB Device 14.45 GB26bd991719.38 MB/Sec5.84 MB/Secintegral
Gorilla 32GB USB Mass Storage DeviceFeiya Technology Corp.0.19 GB90c100024.10 MB/Sec5.88 MB/Sec 
Sharkoon Flexi-Drive EC4 USB DeviceKingston Technology Company Inc.3.73 GB13fe360016.44 MB/Sec6.01 MB/SecAxel06295
TOSHIBA TransMemory USB DeviceToshiba Corp.28.89 GB930654423.35 MB/Sec6.05 MB/Sec 
General USB Flash Disk USB DeviceFeiya Technology Corp.3.75 GB90c100036.29 MB/Sec6.18 MB/Sec 
hp v270w USB DeviceHewlett-Packard15.22 GB3f0e00724.24 MB/Sec6.23 MB/SecGeteda
hp v165w USB DeviceHewlett-Packard14.96 GB3f0530720.50 MB/Sec6.25 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.29.18 GB781556723.64 MB/Sec6.26 MB/Sec 
USB Mass Storage DeviceUnknown7.60 GBabcd123416.13 MB/Sec6.27 MB/Sec 
SanDisk Cruzer U USB DeviceSanDisk Corp.14.89 GB78155a518.98 MB/Sec6.28 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.14.91 GB781556711.34 MB/Sec6.30 MB/Sec 
QUANTUM FIREBALLlct08 06 USB DeviceJMicron Technology Corp. / JMicron USA Technology Corp.49.68 GB152d233829.59 MB/Sec6.32 MB/Sec 
generic USB Mass Storage DeviceUnknown14.98 GBabcd123414.08 MB/Sec6.32 MB/Sec 
Kingston DataTraveler G2 USB DeviceKingston Technology7.46 GB951162421.65 MB/Sec6.36 MB/Sectyfus
SanDisk USB DeviceSanDisk Corp.14.90 GB781557121.14 MB/Sec6.39 MB/SecCruzer Fit
Verbatim STORE N GO USB Device 1.95 GB18a530218.76 MB/Sec6.54 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.29.18 GB781556725.52 MB/Sec6.65 MB/SecIAGMSLOCO
SanDisk Cruzer Blade 32GBSanDisk Corp.29.81 GB781556719.56 MB/Sec6.66 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceKingston Technology58.56 GB951166632.79 MB/Sec6.66 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.116.82 GB781556712.93 MB/Sec6.68 MB/Sec 
USB Mass Storage DeviceRealtek Semiconductor Corp.3.73 GBbda16918.52 MB/Sec6.71 MB/Sec 
JetFlash Transcend 32GB USB Device 29.44 GB8564100026.22 MB/Sec6.72 MB/Sec 
SanDisk Cruzer Edge USB DeviceSanDisk Corp.7.44 GB781556b21.66 MB/Sec6.78 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.52 GB781558131.19 MB/Sec6.80 MB/Sec 
Verbatim STORE N GO USB Device 30.03 GB18a524518.14 MB/Sec6.80 MB/Sec 
Lexar USB Flash Drive USB DeviceLexar Media, Inc.59.61 GB5dca83831.01 MB/Sec6.83 MB/SecTrD
Generic Flash Disk USB DeviceAlcor Micro Corp.3.74 GB58f638721.45 MB/Sec6.84 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.7.48 GB58f638717.67 MB/Sec6.87 MB/Sec 
FLASH Drive UT_USB20 USB DeviceTranscend Information, Inc.3.76 GB130716517.89 MB/Sec6.88 MB/Sec 
SMI USB DISK USB Device 1GB - Symetrix (WerbeStick)Feiya Technology Corp.0.93 GB90c100018.14 MB/Sec6.90 MB/SecAxel06295
SanDisk Cruzer Fit USB DeviceSanDisk Corp.29.31 GB781557125.94 MB/Sec6.92 MB/Sec 
JetFlash Transcend 8GB USB DeviceAlcor Micro Corp.7.46 GB58f638731.47 MB/Sec6.93 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.7.50 GB58f638718.52 MB/Sec7.06 MB/Sec 
Lexar USB Flash Drive USB 2.0 Device TwistTurn black 64 GBLexar Media, Inc.59.62 GB5dcc75c23.17 MB/Sec7.14 MB/SecEM
Intenso Rainbow Line USB DeviceAlcor Micro Corp.7.26 GB58f638722.77 MB/Sec7.16 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.73 GBbda15822.89 MB/Sec7.18 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceKingston Technology7.45 GB951160724.30 MB/Sec7.25 MB/SecJine
pny USB 2.0 FD USB DevicePNY29.94 GB154b5d20.07 MB/Sec7.35 MB/Sec 
USB DISK 2.0 USB Device 14.45 GB26bd991718.92 MB/Sec7.37 MB/Secintegral
JetFlash Transcend 8GB USB Device 7.27 GB8564100023.84 MB/Sec7.38 MB/Sec 
USB2.0 Flash Disk USB Device 0.98 GB1221323416.28 MB/Sec7.39 MB/Secesplanade
Sony Storage Media USB DeviceSony Corp.7.45 GB54c86225.64 MB/Sec7.39 MB/Sec 
DGL0089Alcor Micro Corp.59.16 GB58f638718.91 MB/Sec7.39 MB/Sec 
Corsair Flash Voyager USB DeviceFeiya Technology Corp.3.77 GB90c100021.53 MB/Sec7.42 MB/Sec 
Patriot Memory USB DeviceKingston Technology Company Inc.14.42 GB13fe410020.72 MB/Sec7.46 MB/Sec 
DGL0089Alcor Micro Corp.59.16 GB58f638719.56 MB/Sec7.47 MB/Sec 
Samsung 64 EVO via reader 59.61 GB190822614.88 MB/Sec7.55 MB/Sec 
TOSHIBA TOSHIBA USB DRV USB DeviceToshiba Corp.7.46 GB930140018.34 MB/Sec7.55 MB/Sec 
SCSIDISK SCSI_DISK_1234 USB Device 1.86 GB1567890216.30 MB/Sec7.81 MB/Sec 
USB Flash Memory USB DeviceToshiba Corp.3.73 GB930654517.40 MB/Sec7.84 MB/SecVinPep
Advance 16GBSuper Top15.04 GB14cd125d15.78 MB/Sec7.86 MB/Sec 
Generic Flash Disk USB DeviceAlcor Micro Corp.14.92 GB58f638731.48 MB/Sec7.86 MB/SecFT
TS-RDF5 SD Transcend USB Device 29.81 GB8564400026.83 MB/Sec7.92 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.3.61 GB125fcb1024.24 MB/Sec7.95 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceToshiba Corp.14.48 GB930654531.48 MB/Sec8.29 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.7.44 GB781556723.74 MB/Sec8.34 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceKingston Technology28.85 GB951166631.35 MB/Sec8.36 MB/Sec 
SanDisk Cruzer Blade USB DeviceSanDisk Corp.14.52 GB781556737.89 MB/Sec8.38 MB/Sec21void
Kingston HyperX Savage USB DeviceKingston Technology468.74 GB95116b334.55 MB/Sec8.40 MB/Sec 
Kingston DataTraveler 2.0 USB DeviceKingston Technology28.90 GB951166524.87 MB/Sec8.51 MB/Sec 
Flash USB Disk USB Device 4GB 3.63 GB1221323428.14 MB/Sec8.56 MB/Sec 
USB Disk USB Device 15.61 GB1221323423.41 MB/Sec8.58 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.28.91 GB125fdb8a30.31 MB/Sec8.61 MB/Sec 
UFD 3.0 Silicon-Power16G USB DeviceFeiya Technology Corp.15.01 GB90c100028.28 MB/Sec8.74 MB/Sec 
Lexar 633x UHS-I 64GB via reader 59.65 GB190822615.08 MB/Sec8.83 MB/Sec 
Sandisk Ultra SDHC 1 32GB Micro SD + USB 3.0 ReaderGenesys Logic, Inc.29.71 GB5e374940.85 MB/Sec8.87 MB/SecXeon3D
USB Patriot Memory USB DeviceKingston Technology Company Inc.7.43 GB13fe332729.84 MB/Sec8.90 MB/SecTYFUS
PNY USB 2.0 (red or blue outside with black sliding interior, from Walmart), tested on 2011 MacBookPro USB 2 portPNY14.92 GB154bd420.39 MB/Sec8.93 MB/SecEAM
Sony 4GB Storage USBSony Corp.3.76 GB54c43932.41 MB/Sec9.01 MB/Sec 
ASolid USB DISK USB DeviceFeiya Technology Corp.14.89 GB90c100027.86 MB/Sec9.06 MB/Sec 
PNY USB Flash Memory USB DeviceToshiba Corp.14.51 GB930654520.57 MB/Sec9.11 MB/SecSarge
Imation Nano Pro USB DeviceImation Corp.14.43 GB71863d18.12 MB/Sec9.11 MB/Sec 
Samsung 64 EVO via reader 59.61 GB190822615.04 MB/Sec9.28 MB/SecDuncan
USB Mass Storage Device 130.01 GB18a524340.58 MB/Sec9.38 MB/Sec 
JetFlash 780 Transcend 16GB USB Device 14.52 GB8564100031.81 MB/Sec9.62 MB/Sec 
Sony Micro Vault 32GBSony Corp.28.92 GB54c5ba20.91 MB/Sec9.68 MB/Sec 
Lexar 633x UHS-I 64GB via reader 59.65 GB190822615.08 MB/Sec9.71 MB/SecDuncan
Generic Flash Disk USB DeviceAlcor Micro Corp.0.96 GB58f638718.95 MB/Sec9.76 MB/Sec 
Kingston DataTraveler G3 USB DeviceKingston Technology3.73 GB951164320.36 MB/Sec9.81 MB/Sec 
Imation Ridge USB DeviceImation Corp.1.43 GB71870b18.08 MB/Sec9.98 MB/Sec 
Kingston 8GB 7.28 GBaaaa881619.01 MB/Sec10.36 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.31 GB781559025.04 MB/Sec10.45 MB/Sec 
TDKMedia Trans-It Drive USB DeviceImation Corp.14.89 GB71862a20.43 MB/Sec10.47 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.1,953.06 GB48d123419.93 MB/Sec10.53 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.124.97 GB48d123414.47 MB/Sec10.53 MB/SecNewguy
SD CardAlcor Micro Corp.29.81 GB58f636630.16 MB/Sec10.53 MB/Sec 
KIMSNOT extreme pro SDHC I class10 U3 32Go SD CardAlcor Micro Corp.29.81 GB58f636627.69 MB/Sec10.83 MB/Secleterrrier
TOSHIBA TransMemory USB DeviceToshiba Corp.28.89 GB930654421.94 MB/Sec10.89 MB/Sec 
WD Elements 1078 USB DeviceWestern Digital Technologies, Inc.13.79 GB1058107845.80 MB/Sec11.22 MB/Sec 
Kingston DT Rubber 3.0Kingston Technology28.82 GB951168e41.21 MB/Sec11.36 MB/SecFilo Slovak
LEXAR 300x Micro SDAlcor Micro Corp.14.92 GB58f636630.31 MB/Sec11.43 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.138.20 GB125fc96a64.79 MB/Sec11.66 MB/Sec 
USB Mass Storage Device USB DeviceSuper Top59.45 GB14cd125a18.43 MB/Sec11.68 MB/Sec 
Wilk USB DeviceKingston Technology Company Inc.7.37 GB13fe550032.73 MB/Sec11.80 MB/SecTYFUS
SD CardAlcor Micro Corp.28.90 GB58f636619.20 MB/Sec12.08 MB/Sec 
TOSHIBA MK1059GSM USB DeviceLaCie, Ltd931.51 GB59f104934.09 MB/Sec12.08 MB/Sec 
Multiple Card Reader USB DeviceAlcor Micro Corp.58.24 GB58f636618.17 MB/Sec12.18 MB/Sec 
PNY 16 GB MicroToshiba Corp.14.52 GB930654521.26 MB/Sec12.28 MB/SecSarge
USB Mass Storage DeviceRealtek Semiconductor Corp.14.83 GBbda16918.64 MB/Sec12.28 MB/Sec 
USB Mass Storage DeviceDatafab Systems, Inc.99.24 GB7c4a4a548.41 MB/Sec12.39 MB/Sec 
Generic STORAGE DEVICE USB DeviceGenesys Logic, Inc.14.56 GB5e374922.54 MB/Sec12.43 MB/Sec 
lennyTranscend Information, Inc.37.26 GB130716342.67 MB/Sec12.52 MB/Secprueba
Kingston DT microDuo 3.0 USB DeviceKingston Technology28.89 GB95116a331.19 MB/Sec12.57 MB/Secon usb 2
SanDisk Cruzer Glide USB Device 256GB USB 2.0SanDisk Corp.231.32 GB781557529.54 MB/Sec12.74 MB/SecAskew
JetFlash 780 Transcend 16GB USB Device 14.52 GB8564100031.13 MB/Sec12.74 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceKingston Technology14.43 GB951166641.21 MB/Sec13.11 MB/Sec 
USB Composite DeviceNokia Mobile Phones20.30 GB4216fc60.12 MB/Sec13.20 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceKingston Technology58.58 GB951166629.59 MB/Sec13.26 MB/SecZibus
Multilaser 32gb micro SD class10Super Top29.11 GB14cd121216.65 MB/Sec13.27 MB/Sec 
WinUsb DeviceNokia Mobile Phones20.30 GB42171459.48 MB/Sec13.32 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.47 GB781558125.37 MB/Sec13.33 MB/Sec 
hp x705w USB Device USB 2.0Hewlett-Packard29.61 GB3f0234032.54 MB/Sec13.36 MB/SecKamlesh
SanDisk Ultra USB DeviceSanDisk Corp.14.47 GB781558126.42 MB/Sec13.55 MB/Sec 
USB Mass Storage Device 0.93 GB190822614.84 MB/Sec13.75 MB/Sec 
LGE Mobile USB ModemLG Electronics, Inc.20.30 GB1004634458.86 MB/Sec13.94 MB/Sec 
IS917 innostor USB Device 30.27 GB1f7591731.19 MB/Sec14.50 MB/Sec 
Kingston DTR30G2 USB DeviceKingston Technology29.28 GB95116a229.24 MB/Sec14.62 MB/Sectest
UFD 3.0 Silicon-Power64G USB DeviceKingston Technology Company Inc.59.00 GB13fe550032.97 MB/Sec14.64 MB/Sec 
Samsung Flash Drive USB DeviceFeiya Technology Corp.59.77 GB90c100033.10 MB/Sec14.84 MB/Sec 
4GB USB2Super Top3.79 GB14cd125d20.21 MB/Sec14.92 MB/SecaMp
MXT-USB Storage Device USB Device 14.91 GBaaaa881618.34 MB/Sec15.44 MB/Sec 
Patriot Memory USB DeviceKingston Technology Company Inc.14.91 GB13fe380032.97 MB/Sec15.51 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.48 GB781559037.89 MB/Sec15.70 MB/Sec 
SanDisk SDDR-113 USB DeviceSanDisk Corp.29.71 GB781a7a819.07 MB/Sec15.87 MB/Sec 
USB3.0 FLASH DRIVE USB DeviceApacer Technology, Inc.14.45 GB1005b12829.74 MB/Sec16.07 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559125.04 MB/Sec16.18 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.14.32 GB781559135.13 MB/Sec16.22 MB/Sec 
TOSHIBA TransMemory USB DeviceToshiba Corp.29.08 GB930654538.15 MB/Sec16.36 MB/Sec 
Rocketek MicroSD USB microUSB 3-way adapter (2011 MacBook Pro USB 2), same RS as my Sandisk Extreme (!), slightly slower WSSuper Top29.71 GB14cd817026.59 MB/Sec16.39 MB/SecEAM
USB Mass Storage DeviceSuper Top74.53 GB14cd66008.64 MB/Sec17.46 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.115.67 GB781559132.60 MB/Sec17.64 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.57.82 GB781559032.23 MB/Sec17.70 MB/SecOn USB 2.0
BUFFALO HD-PCTU3 USB DeviceMelCo., Inc.298.08 GB4111de26.71 MB/Sec17.75 MB/Sec 
USB Attached SCSI (UAS) Mass Storage DeviceSeagate RSS LLC14.91 GBbc2ab2435.79 MB/Sec17.78 MB/Sec 
SanDisk Extreme USB Device (tested on MacBook Pro USB 2 port)SanDisk Corp.29.24 GB781558026.58 MB/Sec18.15 MB/SecEAM
USB Device 117.16 GB1f7590329.68 MB/Sec18.34 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.59.59 GBbda13821.45 MB/Sec18.37 MB/Sec 
SanDisk Ultra USB 3.0 USB Device on USB 2.0SanDisk Corp.28.63 GB781559131.47 MB/Sec18.46 MB/Secaling
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559132.60 MB/Sec18.73 MB/Sec 
Samsung S1 Mini USB DeviceSamsung Electronics Co., Ltd232.88 GB4e82f0529.69 MB/Sec19.07 MB/Sec 
Generic STORAGE DEVICE USB DeviceGenesys Logic, Inc.59.59 GB5e374333.15 MB/Sec19.17 MB/Secdincojazz
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559126.95 MB/Sec19.82 MB/Sechsu
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559127.61 MB/Sec20.10 MB/Sec 
SanDisk Ultra Fit USB DeviceSanDisk Corp.14.30 GB781558337.47 MB/Sec20.17 MB/SecJWW
SanDisk Ultra Fit USB DeviceSanDisk Corp.57.82 GB781558333.89 MB/Sec20.50 MB/SecKOD
WDC WD25 00BEVS-00UST0 USB DeviceJMicron Technology Corp. / JMicron USA Technology Corp.232.88 GB152d232936.69 MB/Sec20.64 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559126.96 MB/Sec20.68 MB/Sec 
StoreJet Transcend USB DeviceASMedia Technology Inc.1,863.01 GB174c510632.22 MB/Sec20.75 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.28.62 GB781558a37.96 MB/Sec20.75 MB/Sec 
SanDisk SanDisk Ultra USB DeviceSanDisk Corp.58.89 GB781558142.35 MB/Sec20.79 MB/Sec 
PNY USB 3.0 FD USB DevicePNY29.47 GB154b600829.84 MB/Sec21.58 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.57.82 GB781559038.93 MB/Sec22.16 MB/Sec 
Hitachi HDP725050GLA360 USB DeviceSunplus Technology Co., Ltd465.75 GB4fcc2529.69 MB/Sec22.68 MB/Secgnome9er
Kingston DataTraveler 3.0 USB DeviceKingston Technology28.91 GB951166636.47 MB/Sec22.77 MB/Sec 
Kingston DataTraveler 3.0 USB DeviceToshiba Corp.14.53 GB930654532.36 MB/Sec23.23 MB/Sec 
ASMedia ASM1153 USB DeviceASMedia Technology Inc.465.76 GB174c55aa36.93 MB/Sec23.41 MB/Sec 
Lexar JumpDrive USB DeviceLexar Media, Inc.29.82 GB5dca20542.43 MB/Sec23.55 MB/SecGaviao
Seagate FreeAgent Go USB DeviceSeagate RSS LLC111.76 GBbc2200030.15 MB/Sec23.71 MB/Sec 
WDC WD25 00BEVS-00UST0 USB DeviceJMicron Technology Corp. / JMicron USA Technology Corp.232.88 GB152d232935.34 MB/Sec23.80 MB/SecPChelper
JetFlash Transcend 8GB USB Device 1,909.59 GB8564100041.82 MB/Sec23.83 MB/Sec 
USB Mass Storage DeviceIntegrated Technology Express, Inc.249.99 GB48d123421.82 MB/Sec24.10 MB/Sec 
USB Mass Storage DeviceHuawei Technologies Co., Ltd.931.48 GB12d11f0127.34 MB/Sec24.14 MB/Sec 
Samsung Flash Drive FIT USB DeviceFeiya Technology Corp.119.50 GB90c100035.55 MB/Sec24.30 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.14.30 GB781559140.63 MB/Sec24.55 MB/SecJWW
SanDisk Ultra Fit USB DeviceSanDisk Corp.14.30 GB781558340.63 MB/Sec25.64 MB/Sec 
Lexar USB Flash Drive USB DeviceLexar Media, Inc.31.99 GB5dca21241.44 MB/Sec26.67 MB/Sec 
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559135.62 MB/Sec26.71 MB/Sec 
Kingston DTR30G2 USB DeviceKingston Technology29.30 GB95116a241.44 MB/Sec27.17 MB/SecJine
SanDisk Ultra USB 3.0 USB DeviceSanDisk Corp.28.63 GB781559135.83 MB/Sec28.01 MB/Sec 
WD Elements 10B8 USB DeviceWestern Digital Technologies, Inc.1,862.98 GB105810b841.13 MB/Sec28.09 MB/Sec 
SanDisk Extreme 64GBATECH FLASH TECHNOLOGY59.45 GB11b0634843.37 MB/Sec31.02 MB/Seckubais
Wilk USB DeviceKingston Technology Company Inc.28.89 GB13fe550040.85 MB/Sec34.48 MB/Sec 
SanDisk Extreme USB DeviceSanDisk Corp.29.25 GB781558041.21 MB/Sec37.70 MB/SecFilo Slovak
Samsung SSD 850 EVO 250G USB DeviceFreecom Technologies232.88 GB7ab62140.56 MB/Sec38.40 MB/Sec 
SanDisk Extreme USB DeviceSanDisk Corp.29.21 GB781558040.27 MB/Sec38.93 MB/SecMe
SanDisk Extreme USB DeviceSanDisk Corp.29.21 GB781558041.13 MB/Sec39.46 MB/Sec 
Samsung Flash Drive USB DeviceFeiya Technology Corp.931.39 GB90c100061.31 MB/Sec62.63 MB/Sec 

Total number of records: 300