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USB 3.0 Flash Drive Speed Tests - VID = 21c4, PID = cc4

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 JumpDrive V100 16GB 3.0 USB Device 14.54 GB21c4cc4140.41 MB/Sec21.10 MB/Sec 
Lexar USB Flash Drive USB Device 57.61 GB21c4cc4104.77 MB/Sec11.88 MB/Sec 
Lexar USB Flash Drive USB Device 14.54 GB21c4cc4140.41 MB/Sec11.76 MB/Sec 
Lexar USB Flash Drive USB Device v100 64GB 57.60 GB21c4cc4102.86 MB/Sec36.00 MB/Sec 

Total number of records: 4