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USB 3.0 Flash Drive Speed Tests - VID = 125f (A-DATA Technology Co., Ltd.), PID = dd4a

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
ADATA USA UV140 32GB USB 3.0 Flash Drive, Red/Black (AUV140-32G-RKD)A-DATA Technology Co., Ltd.28.89 GB125fdd4a108.83 MB/Sec38.98 MB/Secv
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.28.24 GB125fdd4a92.98 MB/Sec10.36 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.57.81 GB125fdd4a103.09 MB/Sec20.75 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.14.44 GB125fdd4a76.79 MB/Sec28.10 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.14.44 GB125fdd4a90.18 MB/Sec6.86 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.1.00 GB125fdd4a87.16 MB/Sec0.59 MB/Secyo3gts
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.1.00 GB125fdd4a99.34 MB/Sec8.64 MB/Secyo3gts
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.28.91 GB125fdd4a104.90 MB/Sec19.43 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.28.91 GB125fdd4a103.09 MB/Sec34.76 MB/SecKTALYN
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.57.81 GB125fdd4a104.65 MB/Sec17.94 MB/Sec 
ADATA USB Flash Drive USB DeviceA-DATA Technology Co., Ltd.28.89 GB125fdd4a106.89 MB/Sec40.07 MB/Sec 
ADATA USB Flash Drive USB Device UV140A-DATA Technology Co., Ltd.57.80 GB125fdd4a74.81 MB/Sec19.40 MB/Sec 
ADATA UV140 16GB USB3A-DATA Technology Co., Ltd.14.44 GB125fdd4a63.29 MB/Sec8.57 MB/Sec 

Total number of records: 13