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USB 3.0 Flash Drive Speed Tests - VID = 781 (SanDisk Corp.), PID = cfcb

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
SanDisk SDDR-B531 USB DeviceSanDisk Corp.68.28 GB781cfcb82.49 MB/Sec1.62 MB/Sec 
SanDisk SDDR-C531 Reader USB DeviceSanDisk Corp.119.08 GB781cfcb169.49 MB/Sec64.01 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.14.46 GB781cfcb85.96 MB/Sec6.34 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.476.65 GB781cfcb164.53 MB/Sec48.81 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.28.87 GB781cfcb91.46 MB/Sec19.79 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.476.65 GB781cfcb147.78 MB/Sec26.06 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.29.71 GB781cfcb91.37 MB/Sec14.73 MB/Sec 
SanDisk SDDR-B531 USB DeviceSanDisk Corp.238.49 GB781cfcb85.96 MB/Sec49.23 MB/Sec 
SanDisk Ultra 8GBSanDisk Corp.7.39 GB781cfcb44.31 MB/Sec9.54 MB/Sec 
Kingston SDHC 32GB Class10SanDisk Corp.29.02 GB781cfcb43.29 MB/Sec10.04 MB/Sec 
SanDisk SDDR-B531 Reader w/ 64Gb Amazon A2 uSDSanDisk Corp.58.59 GB781cfcb88.58 MB/Sec58.18 MB/SecAutisticMildly
SanDisk SDDR-B531 Reader USB DeviceSanDisk Corp.119.05 GB781cfcb144.00 MB/Sec78.88 MB/Secconagan9
SanDisk SDDR-B531 Reader USB DeviceSanDisk Corp.119.05 GB781cfcb155.71 MB/Sec87.29 MB/Secconagan9
SanDisk SDDR-B531 Reader USB DeviceSanDisk Corp.119.05 GB781cfcb147.78 MB/Sec54.84 MB/Secppaarrr

Total number of records: 14