Hi, I'm running Sonoma 14.5 on a recent M2 MacBook Air and getting 3MB/s write speed on my Samsung T7 Shield (format APFS Encrypted).  

Using the same Thunderbolt 4 cable I'm getting 360MB/s write on an old Samsung T3 drive and 2300 MB/s on an external NVME drive, so I don't think it's a cable problem.  Apple's disk utility didn't find any problems on the T7.

I installed Samsung Magician to see if that might identify the issue but neither the T3 or T7 drive show up (however the NVME drive does).

Any ideas on what the issue might be with the T7 drive or Samsung Magician?

Thanks, Andrew