There’s not much people really want from SD Card readers, other than that they’re fast and reliable, but Sony has gone ahead and created something that ticks both those boxes and a whole bunch more. 

First and foremost, the company is claiming that the MRW-S3 is the “world’s fastest” UHS-II SD card reader, promising transfer speeds of up to 300MB/s. That speed also comes from its USB 3.1 port, where transfer speeds hit up to 1000MB/s.
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