This -

Is not usable.

Tried 3 computers, USB ports in the back, USB ports in the front. Transferring from djissd to local drive, local SSD, and an external hard drive also connected via USB 3. No difference in transfer speed between any of the variables. The fastest transfer speed I have seen off this card is 2.5mb/s.
The external hard drive in the same ports maxes out the transfer rate. What is wrong with the DJI SSD reader?

Hi, there. Did you use the original cable and SSD card reader? Please change a PC for further check. Thanks for your support.