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USB Flash Drive Speed Tests - VID = 8564, PID = 4000

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
Generic STORAGE DEVICE USB Device 14.46 GB8564400018.17 MB/Sec4.01 MB/Sec 
Generic STORAGE DEVICE USB Device 62.50 GB8564400013.80 MB/Sec5.46 MB/Sec 
Generic STORAGE DEVICE USB Device 59.62 GB8564400041.74 MB/Sec18.82 MB/Sec 
Generic STORAGE DEVICE USB Device 3.81 GB8564400016.48 MB/Sec9.80 MB/SecDaffy Duck
Lexar 16GB microSDHC UHS-I on Transcend TS-RDF5 RDR 14.91 GB8564400035.79 MB/Sec17.35 MB/Secsmz
Nokia STORAGE DEVICE USB Device 2GB 1.84 GB8564400018.12 MB/Sec8.78 MB/Secanu
Sandisk 16GB Class 4 (2011) 14.82 GB8564400010.09 MB/Sec4.90 MB/Secanu
Sandisk Extreme III 2.0 GB CF 1.90 GB8564400016.03 MB/Sec12.71 MB/Secdavleema
Sandisk Extreme III 4.0 GB CF 3.81 GB8564400016.20 MB/Sec9.55 MB/Secdavleema
Sandisk uSD Ultra 16GB UHD1 14.83 GB8564400026.19 MB/Sec9.28 MB/Secbenryanau
Transcend 4GB 120x CF 3.86 GB8564400015.85 MB/Sec12.07 MB/Secdavleema
Transcend 64GB SDXC UHS-1 300x TS64GSDU1 via USB2 59.09 GB8564400028.42 MB/Sec8.08 MB/Sec 
Transcend 8 GB SDHC class 10 7.45 GB8564400017.38 MB/Sec9.00 MB/Secdavleema
Transcend Kick Ass 59.62 GB8564400030.36 MB/Sec20.46 MB/SecCorless
Transcend USB 3.0 Mini reader 7.41 GB8564400016.25 MB/Sec8.31 MB/Secdavleema
TS-RDF5 SD Transcend USB Device 0.50 GB8564400031.19 MB/Sec7.48 MB/Secwkearney99
TS-RDF5 SD Transcend USB Device 14.63 GB8564400026.19 MB/Sec18.46 MB/Sec 
TS-RDF5 SD Transcend USB Device 7.41 GB8564400026.22 MB/Sec9.37 MB/SecLeoKesler
TS-RDF5 SD Transcend USB Device 29.71 GB8564400042.41 MB/Sec10.61 MB/Sec 
TS-RDF5 SD Transcend USB Device 59.46 GB8564400032.41 MB/Sec6.12 MB/Sec 
TS-RDF5 SD Transcend USB Device 59.62 GB8564400030.52 MB/Sec19.23 MB/SecCorless
TS-RDF5 SD Transcend USB Device 15.01 GB8564400020.17 MB/Sec6.62 MB/Sec 
TS-RDF5 SD Transcend USB Device 29.80 GB8564400011.98 MB/Sec10.81 MB/Sec 
TS-RDF5 SD Transcend USB Device 7.46 GB8564400020.43 MB/Sec12.18 MB/Sec8go
TS-RDF5 SD Transcend USB Device 60.05 GB8564400028.87 MB/Sec3.61 MB/Sec 
TS-RDF5 SD Transcend USB Device 59.45 GB8564400027.96 MB/Sec8.79 MB/Sec 
TS-RDF5 SD Transcend USB Device 7.48 GB8564400018.52 MB/Sec8.17 MB/Sec 
TS-RDF5 SD Transcend USB Device in a USB 3.0 port 0.50 GB8564400040.93 MB/Sec7.06 MB/Secwkearney99
TS-RDF5 SD Transcend USB Device in ASM-1042 card 0.50 GB8564400041.49 MB/Sec7.40 MB/Secwkearney99
TS-RDF5 SD Transcend USB Device with 32GB microSDHC-card 29.71 GB8564400020.35 MB/Sec3.99 MB/Sec 

Total number of records: 30