Custom Workstation i9-12900K + Dual RTX 4090 System

CPU: i9-12900K 16 core/24 thread

RAM: 128 GB DDR5 6000 MHz

Motherboard: Gigabyte Aorus Master X DDR5

SSD: 2 TB NVME gen 4 Crucial 7000 Mbps

GPUs; 2x RTX 4090 24 GB

HDDs: 2x 12TB Seagate Ironwolf NAS 7200 RPM drives

Case: Fractal Design XL case with no glass or transparency (Max fans for best cooling)
Cooler: Noctua air cooler (The best and most reliable)

PSU: be quiet Dark Power Pro 13 1600W 80+ Platinum 40 series Ready

Expansion card: TPlink 10 Gbps PCIE card (Take this out to save $100 and you would still have 10G ethernet on the motherboard and you can move the second GPU up to the faster slot)