Main Page Summary How To Publish Feedback NirSoft Utilities

USB 3.0 Flash Drive Speed Tests - VID = 21c4, PID = a838

Welcome to Speed Tests Web site for USB 3.0 Flash Drives/Disks.
In this page, you can find the speed test results of USB 3.0 flash drives or disks, made by USBDeview utility. USBDeview make this test by writing a large file into the USB 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
Lexar USB Flash Drive USB Device 99.24 GB21c4a83891.46 MB/Sec11.36 MB/Sec 
Lexar USB Flash Drive USB Device 29.80 GB21c4a83894.44 MB/Sec14.62 MB/Sec 
Lexar USB Flash Drive USB Device 119.21 GB21c4a83896.05 MB/Sec44.31 MB/Sec 
Lexar Tough USB Flash Drive 119.24 GB21c4a83899.23 MB/Sec43.31 MB/Sec 
Lexar USB Flash Drive USB 128 119.21 GB21c4a83897.61 MB/Sec46.83 MB/Sec 
Lexar USB Flash Drive USB Device 29.80 GB21c4a838108.70 MB/Sec9.37 MB/Sec 
Lexar USB Flash Drive USB Device 29.80 GB21c4a838108.70 MB/Sec9.57 MB/Sec 
Lexar USB Flash Drive USB Device 119.24 GB21c4a83899.34 MB/Sec38.15 MB/Sec 
Lexar USB Flash Drive USB Device 29.81 GB21c4a838112.92 MB/Sec6.12 MB/Sec 
Lexar USB Flash Drive USB Device 29.81 GB21c4a83894.44 MB/Sec39.72 MB/Sec 
Lexar USB Flash Drive USB Device 14.91 GB21c4a83899.23 MB/Sec25.60 MB/Sec 
Lexar USB Flash Drive USB Device 29.81 GB21c4a83896.05 MB/Sec45.36 MB/Sec 
Lexar USB Flash Drive USB Device 29.81 GB21c4a838106.64 MB/Sec7.70 MB/Sec 
Lexar USB Flash Drive USB Device 29.81 GB21c4a838101.19 MB/Sec3.59 MB/Sec 
Lexar USB Flash Drive USB Device 59.61 GB21c4a838107.00 MB/Sec1.18 MB/Sec 
Lexar 128GB USB Flash Drive 119.21 GB21c4a83899.34 MB/Sec44.67 MB/Sec 
Lexar USB Flash Drive USB Device 238.48 GB21c4a838139.07 MB/Sec4.19 MB/Sec 
Lexar USB 64 GB 59.61 GB21c4a83895.95 MB/Sec38.14 MB/Sec 
Lexar USB Flash Drive 3.0 USB Device 29.79 GB21c4a838101.12 MB/Sec9.00 MB/Secwarre

Total number of records: 19