Supermicro PWS-203-1H Power Supply 200W 80-plus Gold rated. This was a mistake. I was looking at 1U power supplies that had a maximum length to fit in the case, and that weren't overkill. This seemed like it was the best option, based on power requirements. But I didn't check all of the dimensions of the PS or the chassis -- I (foolishly) made the assumption that a 1U power supply has a standard form factor in terms of width and height. Well, this one is designed to fit into a SuperMicro chassis, and it does not mount in the above case -- it's much too small, being almost (but not quite) Flex ATX. And no-one makes a mounting bracket, either. But rather than admit defeat, send it back, and find a different one, I opted to make my own mounting bracket from some 20ga sheet aluminum I had in the garage. That took a good two weeks of measuring (bought some new digital calipers, so win-win, right?), CAD (in OnShape.com), and metal work, but I was still waiting for parts to arrive, so whatever. I learned new stuff, and had fun. I made some mistakes, too -- Perfect-me wants to re-make the bracket, but since the worst mistakes are hidden on the inside of the case, Practical-me wins out, and I've moved on.

4 x 4TB WD Red HDD I'm not sure how satisfied I am with these, yet -- I discovered after purchase that some Red models still have the head-parking issue that the WD Greens did, so now I have to do the legwork to make sure that they're set correctly. I'm sort of wishing I'd gone with Seagate, now.