650W PSU seems a bit overkill.. although that's pretty cheap anyway. That motherboard looks expensive too IMO... maybe I'm just a cheap ass but would spend no more than $200 MAX on a motherboard if you essentially just want a flash workstation PC (my little home server MoBo was only around $150 and thats with M.2 slots, RAID, etc).
Go for a bigger name SSD, Samsung or Intel IMO, WD Black are pretty good too. Also make sure if going the M.2 route, you get an NVMe SSD and not SATA - otherwise whats the point really.
Edit: Punctuation and grammar are sometimes important to make the correct statement haha.