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USB Flash Drive Speed Tests - VID = bda (Realtek Semiconductor Corp.), PID = 158

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

Product NameVendor NameDrive SizeVIDPIDRead SpeedWrite SpeedSubmitter
Sandisk MicroSD Ultra MobileRealtek Semiconductor Corp.14.83 GBbda15817.94 MB/Sec7.74 MB/Sec 
SPEEDY-GONZORealtek Semiconductor Corp.7.40 GBbda15815.94 MB/Sec8.07 MB/Sec 
Gold 8GbRealtek Semiconductor Corp.7.45 GBbda15822.18 MB/Sec4.96 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.45 GBbda15819.20 MB/Sec6.91 MB/Sec 
Patriot PSF8G MicroSDHC Class 10, using realtek SD controller and SD adapterRealtek Semiconductor Corp.7.41 GBbda15815.91 MB/Sec10.89 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.69 GBbda1588.85 MB/Sec3.11 MB/Sec 
8GB MicroSD Wintec using SD adapter and realtek controller Realtek Semiconductor Corp.7.44 GBbda15816.84 MB/Sec7.54 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.69 GBbda1589.46 MB/Sec3.13 MB/Sec 
adata s102Realtek Semiconductor Corp.7.34 GBbda15828.42 MB/Sec10.09 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.80 GBbda15818.49 MB/Sec8.32 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.39.07 GBbda15848.00 MB/Sec14.05 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.63 GBbda15822.10 MB/Sec6.20 MB/Sec 
Realtek Card Reader(0158)Realtek Semiconductor Corp.19.95 GBbda15831.14 MB/Sec10.27 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.38 GBbda15815.96 MB/Sec17.46 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.20 GBbda15815.87 MB/Sec3.94 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.84 GBbda15818.52 MB/Sec7.74 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.89 GBbda15816.11 MB/Sec10.60 MB/Sec 
PNY SDHC 4GB EMET1273Realtek Semiconductor Corp.3.68 GBbda15816.38 MB/Sec4.34 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.40 GBbda15815.81 MB/Sec8.01 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.89 GBbda15814.68 MB/Sec4.25 MB/Sec 
Team 16 Gb uhs 1Realtek Semiconductor Corp.14.83 GBbda15817.30 MB/Sec10.27 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.50 GBbda15826.34 MB/Sec5.83 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.12.23 GBbda15828.70 MB/Sec12.17 MB/Sec 
sandisk 4gbRealtek Semiconductor Corp.3.81 GBbda15821.69 MB/Sec13.77 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.75 GBbda15818.72 MB/Sec3.69 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.75 GBbda15817.34 MB/Sec3.71 MB/Sec 
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.21.84 GBbda15842.41 MB/Sec13.74 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.51 GBbda15819.62 MB/Sec11.73 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.70 GBbda15811.20 MB/Sec4.51 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.73 GBbda15822.89 MB/Sec7.18 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.68 GBbda15812.97 MB/Sec3.61 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.15.01 GBbda15819.69 MB/Sec13.11 MB/Sec 
Patriot LX seriesRealtek Semiconductor Corp.29.87 GBbda15818.00 MB/Sec10.85 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.15.01 GBbda15819.69 MB/Sec13.05 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.92 GBbda15825.30 MB/Sec12.65 MB/Sec 
Kingston 2GB MicroSD used in LG P500h phonesRealtek Semiconductor Corp.1.35 GBbda1589.62 MB/Sec6.41 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.43 GBbda15820.72 MB/Sec5.63 MB/Sec 
SanDisk_8GB_Ultra_HC_I_MicroSDRealtek Semiconductor Corp.7.39 GBbda15817.32 MB/Sec13.11 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.83 GBbda15818.67 MB/Sec10.83 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.90 GBbda15818.23 MB/Sec9.13 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.29.71 GBbda15819.33 MB/Sec16.99 MB/Sec 
Patriot Micro SD class 10 32 GBRealtek Semiconductor Corp.28.85 GBbda15814.17 MB/Sec8.06 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.90 GBbda15818.17 MB/Sec9.16 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.51 GBbda15818.98 MB/Sec12.09 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.29.23 GBbda15818.29 MB/Sec10.02 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.39 GBbda15818.88 MB/Sec4.28 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.48 GBbda15817.24 MB/Sec7.72 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.70 GBbda15818.17 MB/Sec9.06 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.76 GBbda15817.40 MB/Sec7.41 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.0.92 GBbda15817.72 MB/Sec7.88 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.20.51 GBbda15849.75 MB/Sec13.48 MB/Sec 
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.14.98 GBbda15821.66 MB/Sec6.27 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.29.53 GBbda15815.78 MB/Sec10.18 MB/Sec 
ADATA AUSDH32GCL4-RA1 microSDHC Card class4 32GB Realtek Semiconductor Corp.29.71 GBbda1589.98 MB/Sec4.50 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.51 GBbda15817.32 MB/Sec9.78 MB/Sec 
Patriot SDHCRealtek Semiconductor Corp.6.52 GBbda15817.97 MB/Sec6.47 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.60.54 GBbda15813.41 MB/Sec4.68 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.31.23 GBbda15814.22 MB/Sec4.04 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.73 GBbda15819.01 MB/Sec8.34 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.40 GBbda15819.89 MB/Sec5.71 MB/Sec 
32gb PNY- Multi-Card USB DeviceRealtek Semiconductor Corp.29.95 GBbda15816.69 MB/Sec6.70 MB/Sec 
Kingston 32GB microSD cardRealtek Semiconductor Corp.29.31 GBbda15818.79 MB/Sec10.27 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.39 GBbda15819.20 MB/Sec4.10 MB/Sec 
Disk driveRealtek Semiconductor Corp.7.80 GBbda15816.73 MB/Sec3.57 MB/Sec 
Generic-Multi-Card USB DeviceRealtek Semiconductor Corp.7.51 GBbda15819.59 MB/Sec5.21 MB/Sec 
Targus 1453- Multi-Card USB DeviceRealtek Semiconductor Corp.3.69 GBbda1589.42 MB/Sec3.79 MB/Sec 
Disk driveRealtek Semiconductor Corp.7.80 GBbda15816.43 MB/Sec3.38 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.141.72 GBbda15857.69 MB/Sec49.29 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.40 GBbda15812.38 MB/Sec3.53 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.6.74 GBbda15817.14 MB/Sec10.18 MB/Sec 
transend 4gRealtek Semiconductor Corp.3.80 GBbda15811.63 MB/Sec4.41 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.2,000.00 GBbda15823.52 MB/Sec5.26 MB/Sec 
Transcend CF 8GB - 400XRealtek Semiconductor Corp.7.45 GBbda15826.58 MB/Sec9.03 MB/Sec 
HARDDISK VIRTUAL (G:)Realtek Semiconductor Corp.2,000.00 GBbda15821.57 MB/Sec7.99 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.59.48 GBbda15817.64 MB/Sec13.11 MB/Sec 
VIRTUAL HARD DISK MILIK BOS MEONGRealtek Semiconductor Corp.2,000.00 GBbda15819.51 MB/Sec3.76 MB/Sec 
Kingston Micro-SDRealtek Semiconductor Corp.1.87 GBbda15817.82 MB/Sec5.78 MB/Sec 
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.135.32 GBbda15843.31 MB/Sec12.86 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.38 GBbda15818.34 MB/Sec12.03 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.10.92 GBbda15822.67 MB/Sec4.51 MB/Sec 
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.69.64 GBbda15841.21 MB/Sec21.61 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.79 GBbda15817.02 MB/Sec16.39 MB/Sec 
Kingston 16 GB Class 10 SDHCRealtek Semiconductor Corp.14.91 GBbda15814.07 MB/Sec6.39 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.60 GBbda15820.39 MB/Sec6.50 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.60 GBbda15820.88 MB/Sec5.73 MB/Sec 
Transcend Micro SDHC Class 10 (Integrated Card Reader-Acer)Realtek Semiconductor Corp.29.27 GBbda15819.82 MB/Sec7.65 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.84 GBbda1589.93 MB/Sec5.28 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.124.99 GBbda15810.84 MB/Sec7.56 MB/Sec 
Samsung TF Class6 4GbRealtek Semiconductor Corp.3.78 GBbda15815.85 MB/Sec9.22 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.83 GBbda15818.47 MB/Sec3.83 MB/Sec 
Silicon Power 8Gb SD Realtek Semiconductor Corp.7.48 GBbda15818.61 MB/Sec7.30 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.0.95 GBbda15816.18 MB/Sec3.45 MB/Sec 
Samsung 4GB MicroSD Class 4 comes with Galaxy AceRealtek Semiconductor Corp.3.69 GBbda15815.81 MB/Sec5.54 MB/Sec 
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.53 GBbda15818.32 MB/Sec15.22 MB/Sec 
Transcend microSDHC Class 10 UHS-I 300x TS32GUSDU1 RT USB2.0 Card ReaderRealtek Semiconductor Corp.29.48 GBbda15817.59 MB/Sec10.93 MB/SecAG
Transcend 8GB microSDHC Class 10Realtek Semiconductor Corp.7.46 GBbda15818.49 MB/Sec7.65 MB/Secalponso_1st
MicroSDHC 16GB Kingston Class10 <SDC10/16GB>Realtek Semiconductor Corp.14.89 GBbda15817.14 MB/Sec8.99 MB/SecArchangel83
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.46 GBbda15818.34 MB/Sec8.62 MB/Seccoghen
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.7.45 GBbda15816.69 MB/Sec8.69 MB/Secdaniber58
Realtek USB 2.0 Card ReaderRealtek Semiconductor Corp.29.80 GBbda15821.33 MB/Sec13.46 MB/Secdaniber58
ADATA microSD card 32GB calss 10 (AUSDH32GCL10-R)Realtek Semiconductor Corp.30.91 GBbda15817.64 MB/Sec13.38 MB/SecDimizZ
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.3.68 GBbda15817.78 MB/Sec7.78 MB/Secdixy
SanDisk 32Gb microSDHC Class 10 UHS-1 @ USB 2.0Realtek Semiconductor Corp.29.71 GBbda15817.04 MB/Sec10.51 MB/Secfb.com/sadvel
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.83 GBbda15816.94 MB/Sec7.32 MB/Sechd
adata sdhc class 10 16GBRealtek Semiconductor Corp.15.43 GBbda15817.32 MB/Sec11.36 MB/SecIRAQII
Transcend 8GB x10 muSD via MSI GE600 MS-1675 CardReaderRealtek Semiconductor Corp.7.45 GBbda15817.97 MB/Sec13.39 MB/SecJBRaven
ADATA 32GB microSDHC Class 10 via MSI GE600 MS-1675 CardReaderRealtek Semiconductor Corp.29.44 GBbda15818.14 MB/Sec10.47 MB/SecJBRaven
old kingston datatraveler 8gb model DT1Realtek Semiconductor Corp.7.45 GBbda15816.13 MB/Sec5.35 MB/Seclangley peter
Kingston DataTraveller 8gb model DT1 oldRealtek Semiconductor Corp.7.45 GBbda15815.83 MB/Sec5.36 MB/Seclangley peter
PNY small green folder 4gbRealtek Semiconductor Corp.3.73 GBbda15813.89 MB/Sec4.65 MB/Seclangley peter
OCZ Rally2 8gb niceRealtek Semiconductor Corp.7.45 GBbda15823.55 MB/Sec7.87 MB/Seclangley peter
Silicon Power 64GB micro SD on usb2.0 portRealtek Semiconductor Corp.58.21 GBbda15817.43 MB/Sec10.41 MB/Seclangley peter
Kingston MicroSD 32GB class4Realtek Semiconductor Corp.29.32 GBbda15818.20 MB/Sec4.46 MB/Seclangley Peter
Kingston MicroSD 2GBRealtek Semiconductor Corp.1.83 GBbda15817.81 MB/Sec8.50 MB/Seclangley peter
Samsung MicroSD 8GBRealtek Semiconductor Corp.7.41 GBbda15818.32 MB/Sec9.54 MB/SecLangley Peter
Silicon Power 32GB micro SD card on usb 2.0 portRealtek Semiconductor Corp.28.96 GBbda15818.14 MB/Sec8.50 MB/Seclangley peter
Kingston 2gb SD card - purple stripeRealtek Semiconductor Corp.1.92 GBbda15810.94 MB/Sec4.66 MB/Seclangley peter
silicon Power 64gb micro sd on cheap adaptor usb2.0Realtek Semiconductor Corp.58.21 GBbda15817.02 MB/Sec7.41 MB/Seclangley peter
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.91 GBbda15815.86 MB/Sec4.83 MB/SecLeandro Olimpi
Generic-Multi-Card USB DeviceRealtek Semiconductor Corp.1.88 GBbda15818.16 MB/Sec4.83 MB/SecLOLEL
verbatim sdhc 8gb class6Realtek Semiconductor Corp.7.49 GBbda15818.32 MB/Sec8.41 MB/Secmarty136
panasonic 4gb class 6Realtek Semiconductor Corp.3.68 GBbda15816.87 MB/Sec6.61 MB/Secmatyza
Transcend Mini SDHC Class 10 - 16GBRealtek Semiconductor Corp.14.72 GBbda15816.58 MB/Sec7.00 MB/SecMikey
SD Card 2GB Transcend TechnologyRealtek Semiconductor Corp.1.87 GBbda15813.12 MB/Sec6.48 MB/SecMinhza
Patriot SDHC 8GBRealtek Semiconductor Corp.7.48 GBbda15817.48 MB/Sec7.04 MB/Secmlb
Kingston Micro-sd 2GBRealtek Semiconductor Corp.1.87 GBbda15818.34 MB/Sec5.91 MB/Secmlb
Pqi HiSpeed150Realtek Semiconductor Corp.1.86 GBbda15817.54 MB/Sec10.70 MB/Secmlb
Patriot 4GB MicroSD class 10Realtek Semiconductor Corp.3.72 GBbda15817.07 MB/Sec11.22 MB/Secmlb
no-name microSDRealtek Semiconductor Corp.0.90 GBbda15817.87 MB/Sec5.96 MB/Secmlb
Kingston microSDRealtek Semiconductor Corp.1.83 GBbda15818.03 MB/Sec8.97 MB/Secmlb
Kingston 2GB microSDRealtek Semiconductor Corp.1.86 GBbda15816.27 MB/Sec6.91 MB/Secnetnet.hu
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.40 GBbda1589.83 MB/Sec8.29 MB/SecNihar Braroo
Lexar Class 10 microSD 16GBRealtek Semiconductor Corp.13.71 GBbda15819.82 MB/Sec9.73 MB/SecOlirav
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.28 GBbda15818.70 MB/Sec3.71 MB/Secroshan
Transcend 8GB microSDHC Class 6 (TS8GUSDHC6)Realtek Semiconductor Corp.7.41 GBbda15817.83 MB/Sec9.22 MB/SecS Higgins
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.31.04 GBbda1587.95 MB/Sec3.14 MB/SecSyd Toon
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.14.73 GBbda15815.00 MB/Sec5.13 MB/SecT Hogan
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.40 GBbda15818.37 MB/Sec8.14 MB/SecT Hogan
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.1.86 GBbda15815.06 MB/Sec5.21 MB/SecT Hogan
Transcend SD 150xRealtek Semiconductor Corp.1.92 GBbda15819.83 MB/Sec13.51 MB/SecTNT
Texet 2GB SD card used as ReadyBoostRealtek Semiconductor Corp.1.80 GBbda1583.81 MB/Sec0.55 MB/SecUnsteadyKen
SanDisk Ultra II SD Card used as ReadyBoost driveRealtek Semiconductor Corp.1.84 GBbda15819.23 MB/Sec9.47 MB/SecUnsteadyKen
Generic- Multi-Card USB DeviceRealtek Semiconductor Corp.7.52 GBbda15824.62 MB/Sec8.37 MB/Secwew
Kingston 512 MBRealtek Semiconductor Corp.0.49 GBbda15811.06 MB/Sec5.56 MB/Secyaser

Total number of records: 144