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The mission of this site is to benchmark all USB Flash drives over the world.

Download our USB Flash Benchmark now!

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Instruction
If you want to benchmark your USB flash drive:
  • Download USBFlashSpeed.com exclusive benchmark tool.
  • Plug in your usb flash drive and run the benchmark application.
  • Choose your usb flash drive letter and start the benchmark.
  • Wait for results to be published on the site and...
Enjoy comparing your results with other published on the site!
Filtered by 256Gb
All 1Gb 2Gb 4Gb 8Gb 16Gb 32Gb 64Gb 128Gb 256Gb
Top 10 of the fastest Flash Drives (Read)
SizeModelWrite speedRead speed
256GbGeneric 00000 SD Card1144.68 MB/s861.01 MB/s
256GbSanDisk Extreme Pro283.59 MB/s352.76 MB/s
256GbSanDisk Ext SSD281.16 MB/s310.36 MB/s
256GbCorsair Survivor 3.0130.52 MB/s204.32 MB/s
256GbLexar JumpDrive122.75 MB/s197.21 MB/s
256GbKingston DT HyperX 3.0107.30 MB/s177.88 MB/s
256GbPNY USB 3.0 FD100.71 MB/s166.67 MB/s
256Gbhp x702w128.12 MB/s165.91 MB/s
256GbInnostor Innostor104.13 MB/s133.27 MB/s
256GbLexar USB Flash Drive75.59 MB/s110.05 MB/s
Top 10 of the fastest Flash Drives (Write)
SizeModelWrite speedRead speed
256GbGeneric 00000 SD Card1144.68 MB/s861.01 MB/s
256GbSanDisk Extreme Pro283.59 MB/s352.76 MB/s
256GbSanDisk Ext SSD281.16 MB/s310.36 MB/s
256GbCorsair Survivor 3.0130.52 MB/s204.32 MB/s
256Gbhp x702w128.12 MB/s165.91 MB/s
256GbLexar JumpDrive122.75 MB/s197.21 MB/s
256GbKingston DT HyperX 3.0107.30 MB/s177.88 MB/s
256GbInnostor Innostor104.13 MB/s133.27 MB/s
256GbPNY USB 3.0 FD100.71 MB/s166.67 MB/s
256GbLexar Pro LRW400 -190.83 MB/s104.51 MB/s
Last 10 benchmarked Flash Drives
SizeModelWrite speedRead speed
256GbSanDisk Extreme Pro275.31 MB/s291.42 MB/s
256GbSanDisk Ext SSD336.89 MB/s374.12 MB/s
256GbSanDisk Extreme Pro338.79 MB/s354.65 MB/s
256GbSanDisk Extreme Pro24.30 MB/s28.52 MB/s
256GbSanDisk Extreme Pro326.42 MB/s360.29 MB/s
256GbGeneric EE8QT SD Card47.87 MB/s82.74 MB/s
256GbPNY USB 3.0 FD138.75 MB/s183.46 MB/s
256GbLexar USB Flash Drive17.67 MB/s24.24 MB/s
256GbPNY USB 3.0 FD37.86 MB/s104.40 MB/s
256GbSanDisk Extreme Pro323.85 MB/s352.68 MB/s
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