The title of the product description is "Up to 250MB/s read speed and 130MB/s write speed from ProGrade Digital" but unfortunately it's a bit less than the AS SSD benchmark with the high-speed card reader LENTION SD 4.0, which I also bought from Amazon. I also tested the TEAMGROUP XTREEM UHS-II SDV60 256G SD card that I bought together and the test result was much better! The TEAMGROUP card delivered 269 MB/s reading and 141 MB/s writing in sequential tests, which beats the advertised speed! All in all a good price for what it offers, with an acceptable but not very high speed.
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