I've used MyDigitalSSD and ZTC drives without issue.

No problem with the speeds.

I have heard of issues with Transcend, so I have tried to avoid them.

Drives I have used:

ZTC 256/512 GB: https://www.amazon.com/dp/B00YDHKIMG/

MyDigitalSSD Super Boost Drive (256 GB): https://www.amazon.com/MyDigitalSSD-256GB-Super-Boot-Drive/dp/B00NY4VIPA/