ASRock Rack 2U4G-GENOA/M3 barebone server 4 GPU 2U Rackmount

2U server barebones for four dual-slot GPUs

The ASRock Rack 2U4G-GENOA/M3 is a 2U rackmount barebones chassis built around a single SP5 socket for AMD EPYC 9004 and 9005 series processors. It provides four dual-slot PCIe 5.0 x16 slots plus an additional PCIe 5.0 x16 slot and one PCIe 5.0 x8 slot for high-density GPU compute or acceleration workloads.

Suited for GPU-heavy inference or rendering nodes

This platform targets builders who need four full-size accelerators in a compact 2U form factor with direct CPU-attached PCIe 5.0 lanes. It is not for buyers who require more than four double-width cards, deployments that need 3.5-inch drive carriers, or environments that rely on proprietary mezzanine form factors instead of the included OCP NIC 3.0 slot.

Four dual-slot PCIe 5.0 x16 slots decide fit

The defining spec is the quartet of dual-slot PCIe 5.0 x16 connectors fed from the single socket, which sets the physical and electrical ceiling for GPU count and bandwidth. Storage capacity tops out at four 2.5-inch NVMe bays plus two 2.5-inch SATA bays, and remote management is handled through the integrated IPMI interface.