These CPUs are not the fastest, but they have 6-channel DDR4 ECC RAM equivalent to DDR5 7200 and 48 PCIe lanes each,. They are LGA 3647, the mobo will run you $275 for an E-ATX, or you can get a Lenovo P720 or HP Z8 G4 barebones and fill it up with hard drives. They work great for servers and TrueNAS SCALE systems. You can use the 8-core and 10-core, and use the other 8-core for a decoration. They make good decorations too because they are very large CPUs.
I have a lot of good cheap mechanical keyboards, mice, webcams, mics, video lights, live streaming gear, and USB hubs I need to sell to pay the RAM tax due to the sky high price of RAM.