This review is for the Kingston Canvas React Plus 64GB 300MB/s UHS-II SDXC Card. Good recoil, great performance with the included reader. When connected to a previous generation USB 3.0 (2014 laptop), it achieves just over 200 MB/s reading and 180 MB/s writing. But in combination with a modern USB 3.0 or USB 3.1 port and an included card reader, it works as advertised, but only with the reader activated. I have a Lexar Pro Workflow 2 Reader, read and write speeds of 300MB/s with other cards I've tested. but with this card the max read speed is 280MB/s / write 254MB/s. My Sandisk UHS-II USB-C Reader reaches a maximum read speed of 284MB/s / write speed of 268MB/s. The in-camera performance (Olympus OM-D E-M10 Mark III) seems to be on par with the other two best line cards so far. I was able to test 4K video on a Canvas React Plus card at faster transfer rates than any other card I own or have tested, getting 60.8MB/s versus 58.2MB/s for the Sandisk Extreme Pro 64GB 300MB/s. sec UHS-II, which I have tested (but do not own) and 52, 7MB/s compared to a 64GB 2000x (300MB/s) Amplim card I own. to win,
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