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USB Flash Drive Speed Tests - VID = 67b (Prolific Technology, Inc.), PID = 2506

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
CF to USB 16GBProlific Technology, Inc.15.22 GB67b250626.74 MB/Sec1.86 MB/Secc2009 Dre@ming
CF to USB DeviceProlific Technology, Inc.15.22 GB67b250629.44 MB/Sec1.91 MB/SecDreaming Chou
FUJITSU MHT2060AT PL USB DeviceProlific Technology, Inc.35.97 GB67b250617.62 MB/Sec11.68 MB/Sec 
HDS72808 0PLAT20 USB DeviceProlific Technology, Inc.7.52 GB67b250631.06 MB/Sec4.13 MB/Sec 
Hitachi HTS541040G9AT00 USB DeviceProlific Technology, Inc.37.26 GB67b250620.10 MB/Sec15.94 MB/Sec 
Hitachi HTS541680J9AT00 USB DeviceProlific Technology, Inc.19.53 GB67b250624.87 MB/Sec17.59 MB/Sec 
HTS42404 0M9AT00 USB DeviceProlific Technology, Inc.17.72 GB67b250610.91 MB/Sec13.09 MB/SecVsCedar
PLEXTOR CD-R PREMIUM2 USB DeviceProlific Technology, Inc.97.65 GB67b250631.54 MB/Sec4.58 MB/Sec 
SAMSUNG HM100JC USB DeviceProlific Technology, Inc.93.16 GB67b250631.65 MB/Sec22.24 MB/Secrkot
ST360020 A USB DeviceProlific Technology, Inc.31.50 GB67b250632.92 MB/Sec8.02 MB/Sec 
ST910082 5A USB DeviceProlific Technology, Inc.29.28 GB67b250620.21 MB/Sec23.23 MB/Secmlp
ST94813A USB DeviceProlific Technology, Inc.3.61 GB67b250613.77 MB/Sec3.56 MB/Sec 
ST980815 A USB DeviceProlific Technology, Inc.74.53 GB67b250623.71 MB/Sec20.21 MB/SecThong2000
ST980815 A USB DeviceProlific Technology, Inc.74.53 GB67b250625.82 MB/Sec22.95 MB/SecThong2000
ST980815 A USB DeviceProlific Technology, Inc.74.53 GB67b250629.54 MB/Sec28.95 MB/Secchai2496
TOSHIBA MK2004GAL USB DeviceProlific Technology, Inc.18.61 GB67b250616.48 MB/Sec7.30 MB/SecKaylabug43
TOSHIBA MK4018GAS USB DeviceProlific Technology, Inc.160.19 GB67b250645.71 MB/Sec34.48 MB/Sec 
TOSHIBA MK6008GAH USB DeviceProlific Technology, Inc.55.88 GB67b250620.83 MB/Sec9.81 MB/Sec 
TOSHIBA MK6021GAS USB DeviceProlific Technology, Inc.12.00 GB67b250622.32 MB/Sec9.47 MB/SecMDZELLO
WDC WD16 00 USB DeviceProlific Technology, Inc.10.01 GB67b250627.17 MB/Sec17.40 MB/Secsux
WDC WD80 0UE-22HCT0 USB DeviceProlific Technology, Inc.74.53 GB67b250623.90 MB/Sec11.23 MB/Secmas123

Total number of records: 21