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USB 3.0 Flash Drive Speed Tests - VID = 781 (SanDisk Corp.), PID = 55a4

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
SanDisk3.2Gen1SanDisk Corp.233.25 GB78155a4144.00 MB/Sec40.56 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.114.53 GB78155a4137.20 MB/Sec49.23 MB/Sec 
USB SANDISK Ultra 256 GBSanDisk Corp.233.25 GB78155a4144.00 MB/Sec42.67 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.114.56 GB78155a4134.13 MB/Sec47.19 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.28.63 GB78155a4155.71 MB/Sec38.15 MB/Secnathan.m
USB Mass Storage DeviceSanDisk Corp.28.63 GB78155a4160.14 MB/Sec37.64 MB/Secnathan.m

Total number of records: 6