Review on 📷 Samsung 16GB PRO Class 10 SDHC Memory Card with Up to 90MB/s Read Speed (MB-SG16D/AM) by Tom Plowman

Great SD card! I bought 64GB and my observations are based on that. The actual read speed of large files is 90MB, write speed is 60MB. This is for a 2GB file from my SSD populated system with an external USB 3 card reader (Please understand that many smaller files take longer to copy. I was just testing to make sure the card could handle it reached the maximum specified by Samsung and it matched.) With the same system, same SD card and same file for testing, but now with the built in SD card reader, I get 20MB for both reading and writing. The problem is not with the card but with my computer. The SD card slot appears to be connected to a USB 2 bus. I can confirm that this card meets the advertised specs. If you find this isn't for you, I suggest you test your system to make sure this isn't a limitation. If you continue to experience performance issues, please contact Samsung.