Amazon.com: AMD Ryzen 9 3900X 12-core, 24-thread unlocked desktop processor with Wraith Prism LED Cooler : Electronics
AMD Ryzen 9 3900X R9 3900X CPU + ASUS TUF GAMING B550M PLUS (WI-FI) Motherboard Suit Socket AM4 All new but without cooler - AliExpress Computer & Office
CLX SET Gaming Desktop AMD Ryzen 9 3900X 32GB Memory NVIDIA GeForce RTX 3090 4TB HDD + 960GB SSD Black TGMSETRTH0932BR - Best Buy
Archimago's Musings: Upgrade to AMD Ryzen 9 3900X Workstation Computer. (And Amazon Music HD/UHD opens to lossless and "hi-res".)