Amazon.com: SAMSUNG BAR Plus 256GB - 400MB/s USB
So here are my speed test results that I get using the Samsung BAR Plus 64GB USB 3.1 Flash Drive with an ASMedia USB 3.1 controller, a Renesas USB 3.0 controller or a VIA VL805 USB 3.0 controller. Like advertised, it has a fast reading speed of 268 MB/s with ASMedia USB 3.1 controller, and 250 MB/s with Renesas or VIA USB 3.0 controllers.
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