This is my Current Plex Server with over 30 Connected users. Over 5000 Movies and 150 TV Shows.
Went from a CoolMaster Full ATX Stormtrooper Case running an AMD FX-8370 4.3GHz 8-Core to this Fractal Design Node 804 MicroATX Mid Tower with Intel Xeon E3-1230 V5 3.4 GHz Quad-Core. (https://pcpartpicker.com/b/sgNQzy)
I have added The Majority of the HDD from over the last 3 years. This case is much smaller and way more compact and the Asus P10S-M WS is a great mATX board that had 8 Sata connections and works great for downsizing of the old Build.
Fractal Design Node 804 MicroATX Mid Tower
Intel Xeon E3-1230 V5 3.4 GHz Quad-Core
Asus P10S-M WS Micro ATX LGA1151
Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-2666 (Only can use 2133)
Gigabyte GeForce GTX 1050 Ti 4 GB
Asus PCE-AC55BT B1 PCI-Express x1 802.11a/b/g/n/ac
EVGA SuperNOVA G3 750 W 80+ Gold Certified Fully-Modular ATX
Samsung 970 Evo 500 GB M.2-2280 SSD (Boot)
8TB WD HDD Red x2 shucked
4TB WD HDD 5200RPM x4
2TB WD HDD 5200RPM shucked
1TB WD HDD 5200RPM