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USB Flash Drive Speed Tests - VID = dc08, PID = ef0b

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
CCore Flash Disk USB Device 62.49 GBdc08ef0b8.66 MB/Sec3.90 MB/Sec 
CCore Flash Disk USB Device 31.23 GBdc08ef0b6.71 MB/Sec11.90 MB/Sec 
CCore Flash Disk USB Device 19.99 GBdc08ef0b9.00 MB/Sec5.00 MB/Sec 
CCore Flash Disk USB Device 15.77 GBdc08ef0b6.44 MB/Sec5.12 MB/Sec 
CCore Flash Disk USB Device 32.00 GBdc08ef0b8.46 MB/Sec4.13 MB/Sec 
ehsan torogh 15.61 GBdc08ef0b5.28 MB/Sec1.15 MB/Sec 
No Name Flash Disk USB Device 31.23 GBdc08ef0b6.59 MB/Sec7.21 MB/Sec 
No Name Flash Disk USB Device 62.48 GBdc08ef0b4.46 MB/Sec2.65 MB/Sec 
No Name Flash Disk USB Device 31.99 GBdc08ef0b9.24 MB/Sec5.32 MB/Secnir123
No Name Flash Disk USB Device 3.99 GBdc08ef0b8.79 MB/Sec4.42 MB/Sec 
No Name Flash Disk USB Device 15.61 GBdc08ef0b6.73 MB/Sec6.42 MB/Sec 

Total number of records: 11