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USB Flash Drive Speed Tests - VID = 781 (SanDisk Corp.), PID = 556c

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
SanDisk Cruzer Colt USB DeviceSanDisk Corp.29.80 GB781556c21.66 MB/Sec9.52 MB/SecJimboTam
SanDisk Ultra USB DeviceSanDisk Corp.59.62 GB781556c21.57 MB/Sec5.94 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c19.23 MB/Sec6.23 MB/Secpavao
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c19.96 MB/Sec8.42 MB/Secjaca
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c19.56 MB/Sec6.87 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c20.95 MB/Sec6.77 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.53 MB/Sec7.30 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.62 GB781556c19.17 MB/Sec8.37 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c9.71 MB/Sec6.72 MB/SecAnosn
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c20.19 MB/Sec5.13 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.89 MB/Sec7.16 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.76 MB/Sec7.46 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c22.28 MB/Sec7.23 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c21.53 MB/Sec7.85 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c12.66 MB/Sec6.06 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c20.21 MB/Sec7.27 MB/SecYves
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c21.82 MB/Sec8.10 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.83 MB/Sec9.28 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c12.49 MB/Sec6.08 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c19.89 MB/Sec8.06 MB/SecCydonian
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c19.25 MB/Sec5.66 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.29 MB/Sec9.29 MB/Secsam.ck
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c19.76 MB/Sec6.00 MB/SecFort
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c9.14 MB/Sec6.48 MB/Secvidvo
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.49 MB/Sec6.75 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c20.24 MB/Sec7.85 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c19.72 MB/Sec4.89 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.81 GB781556c19.53 MB/Sec8.88 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c18.55 MB/Sec6.96 MB/Sec20130804
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c12.47 MB/Sec6.13 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c21.53 MB/Sec8.29 MB/SecHentaiman
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c20.90 MB/Sec8.29 MB/Secmuanjai
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c19.93 MB/Sec7.79 MB/SecBigFan
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c19.17 MB/Sec6.20 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.4.86 GB781556c21.37 MB/Sec4.12 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.44 GB781556c19.59 MB/Sec6.05 MB/SecArto Sonata
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.37 MB/Sec6.00 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c14.56 MB/Sec4.15 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c19.23 MB/Sec8.41 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c15.55 MB/Sec6.54 MB/Sectheprohack.com
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c13.96 MB/Sec5.90 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c16.84 MB/Sec8.19 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c16.84 MB/Sec7.63 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c16.94 MB/Sec6.25 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c20.68 MB/Sec7.24 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c15.89 MB/Sec4.81 MB/SecBC
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.39 MB/Sec7.55 MB/SecALBS
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c24.14 MB/Sec6.47 MB/SecFrank
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c20.25 MB/Sec4.39 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.17 MB/Sec6.84 MB/SecDanny
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.26 MB/Sec7.63 MB/Secchou
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c20.68 MB/Sec7.28 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c19.89 MB/Sec6.81 MB/Secdaibe123
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.24 MB/Sec6.86 MB/SecDannyC
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c19.96 MB/Sec6.59 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c21.06 MB/Sec6.91 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c20.80 MB/Sec5.30 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c22.19 MB/Sec7.20 MB/SecDanny Chua
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c20.17 MB/Sec6.99 MB/SecNagaThai
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c21.02 MB/Sec8.29 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.42 GB781556c21.85 MB/Sec7.94 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c20.17 MB/Sec6.82 MB/Secwangchoon@gmai
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.77 MB/Sec6.33 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c21.43 MB/Sec4.36 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.44 GB781556c20.71 MB/Sec5.95 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c19.89 MB/Sec6.95 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c20.10 MB/Sec6.46 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c17.86 MB/Sec8.48 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c20.91 MB/Sec4.55 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.21 MB/Sec7.10 MB/SecMomo
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c21.18 MB/Sec4.57 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.44 GB781556c20.98 MB/Sec7.32 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c19.62 MB/Sec7.52 MB/SecPJK
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c21.69 MB/Sec6.98 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.0.95 GB781556c17.40 MB/Sec3.58 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.0.95 GB781556c17.48 MB/Sec3.58 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c18.96 MB/Sec5.20 MB/Secgoldenbob
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c19.56 MB/Sec7.46 MB/Secwangchoon
SanDisk Ultra USB DeviceSanDisk Corp.29.82 GB781556c20.96 MB/Sec4.02 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c20.90 MB/Sec8.74 MB/Secmuanjai
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c20.65 MB/Sec6.58 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c19.36 MB/Sec6.68 MB/SecDannyC
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c17.99 MB/Sec5.73 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c18.80 MB/Sec8.29 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.20 MB/Sec7.05 MB/Secrs
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c19.96 MB/Sec8.32 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c20.01 MB/Sec4.59 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.53 MB/Sec7.04 MB/Sec688eric
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c18.27 MB/Sec5.69 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c21.44 MB/Sec8.28 MB/SecAdam
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c19.89 MB/Sec7.60 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c21.94 MB/Sec8.23 MB/Sec688eric
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c19.76 MB/Sec8.02 MB/SecJV
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c21.86 MB/Sec7.85 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c12.47 MB/Sec3.18 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c21.18 MB/Sec7.37 MB/Secwolf
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.36 MB/Sec7.52 MB/SecSigge
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c20.65 MB/Sec6.52 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c18.61 MB/Sec6.47 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c6.84 MB/Sec6.26 MB/Seccheapfame
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.10 MB/Sec7.38 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.91 GB781556c19.36 MB/Sec6.48 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c24.51 MB/Sec9.66 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c18.20 MB/Sec7.75 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.14.90 GB781556c21.47 MB/Sec5.55 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c19.10 MB/Sec7.60 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.3.99 GB781556c23.35 MB/Sec5.93 MB/Sechellway.com
SanDisk Ultra USB DeviceSanDisk Corp.14.89 GB781556c20.87 MB/Sec7.56 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.59.61 GB781556c19.36 MB/Sec6.98 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.29.80 GB781556c21.53 MB/Sec7.58 MB/Sec 
SanDisk Ultra USB DeviceSanDisk Corp.7.45 GB781556c21.61 MB/Sec7.52 MB/Secktz
SanDisk Ultra USB DeviceSanDisk Corp.29.46 GB781556c14.79 MB/Sec3.58 MB/Sec 
SanDisk Ultra USB Device - 16GBSanDisk Corp.14.91 GB781556c21.26 MB/Sec4.26 MB/Sec 
SanDisk Ultra USB Device (32GB)SanDisk Corp.29.82 GB781556c20.53 MB/Sec8.03 MB/Sec 
SanDisk Ultra USB Device 16GbSanDisk Corp.14.90 GB781556c21.73 MB/Sec8.11 MB/Sec 
SanDisk Ultra USB Device 16GBSanDisk Corp.14.90 GB781556c20.75 MB/Sec6.50 MB/Sec 
SanDisk Ultra USB Device 32 gb SanDisk Corp.29.82 GB781556c20.08 MB/Sec5.52 MB/Secwangchoon@gmai
SanDisk Ultra USB Device 8GBSanDisk Corp.7.45 GB781556c18.55 MB/Sec5.32 MB/Secronnie2u
SanDisk Ultra USB Device SDCZ45-016G-A11 //actually its write speed is 4MB/sSanDisk Corp.14.91 GB781556c21.02 MB/Sec6.71 MB/Secactually write
SanDisk Ultra USB Device sdcz45-032gSanDisk Corp.29.80 GB781556c20.87 MB/Sec6.92 MB/SecBigFan

Total number of records: 120