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USB 3.0 Flash Drive Speed Tests - VID = 781 (SanDisk Corp.), PID = 55a9

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

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
USB Mass Storage DeviceSanDisk Corp.114.49 GB78155a9140.41 MB/Sec24.93 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.57.29 GB78155a9131.00 MB/Sec33.10 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.57.29 GB78155a9144.00 MB/Sec34.91 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.460.25 GB78155a9144.00 MB/Sec51.43 MB/Sec 
Sandisk 3.2Gen1SanDisk Corp.114.58 GB78155a9144.00 MB/Sec21.66 MB/Sec 
USB FlashDrive SanDisk 3.2Gen1 DualDriveSanDisk Corp.57.29 GB78155a9144.00 MB/Sec34.91 MB/Sec 
Sandisk Dual Drive Go 32GBSanDisk Corp.28.64 GB78155a9144.00 MB/Sec38.14 MB/Sec 
SanDisk Dual Drive 256GBSanDisk Corp.232.82 GB78155a9137.20 MB/Sec45.71 MB/Sec 
SanDisk 3.2Gen1SanDisk Corp.28.65 GB78155a9144.00 MB/Sec30.97 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.114.57 GB78155a9133.93 MB/Sec22.32 MB/Sec 
Sandisk USB Dual Drive Go Gen3.1SanDisk Corp.57.29 GB78155a9144.00 MB/Sec33.10 MB/Sec 
SanDisk 64GB Ultra Dual Drive Go USB Type-C Flash Drive SanDisk Corp.57.28 GB78155a9164.53 MB/Sec36.93 MB/Sec 
SDDDC3-064G Sandisk 64GBSanDisk Corp.57.29 GB78155a9137.20 MB/Sec31.14 MB/Sec 
SanDisk 3.2 Gen1SanDisk Corp.114.60 GB78155a9144.00 MB/Sec20.79 MB/Sec 
SanDisk 3.2 Gen 1SanDisk Corp.114.60 GB78155a9140.41 MB/Sec22.33 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.114.57 GB78155a9144.00 MB/Sec56.46 MB/Sec 
SanDisk Ultra Dual Drive Go USB Type-CSanDisk Corp.28.64 GB78155a9151.77 MB/Sec34.91 MB/Sec 
Sandisk USB C3.1 256GbSanDisk Corp.232.87 GB78155a9140.63 MB/Sec48.81 MB/Sec 
Sandisk Dual Drive 126GBSanDisk Corp.114.58 GB78155a9147.54 MB/Sec50.96 MB/Sec 
SanDisk Dual Drive USB DeviceSanDisk Corp.57.30 GB78155a9104.90 MB/Sec20.97 MB/Sec 
Sadisk 3.2 Gen1SanDisk Corp.114.60 GB78155a9117.49 MB/Sec48.00 MB/Sec 
USB Mass Storage DeviceSanDisk Corp.28.64 GB78155a9140.41 MB/Sec18.06 MB/Sec 
Sandisk Dual DriveSanDisk Corp.114.61 GB78155a9137.20 MB/Sec26.92 MB/SecADS
USB Mass Storage DeviceSanDisk Corp.57.30 GB78155a9144.00 MB/Sec29.69 MB/SecBang IF
SanDisk 64GBSanDisk Corp.57.29 GB78155a9120.00 MB/Sec20.28 MB/SecDpdp
USB Mass Storage DeviceSanDisk Corp.28.64 GB78155a9140.63 MB/Sec35.34 MB/SecF;/
Sandisk Dual Drive 128SanDisk Corp.114.60 GB78155a9136.99 MB/Sec23.41 MB/SecLWZ
USB Mass Storage DeviceSanDisk Corp.57.30 GB78155a9147.54 MB/Sec36.67 MB/SecNiXx
SanDisk 3.2Gen1SanDisk Corp.114.58 GB78155a9140.41 MB/Sec30.64 MB/Secpgp

Total number of records: 29