ASRock Rack DMRD16-2L+ motherboard supports up to 4 TB of DDR5

ASRock Rack showed the DMRD16-2L+ motherboard for Intel Xeon 7 "Diamond Rapids" processors at the 2026 OCP Global Summit. The board uses a 12 x 13-inch EEB form factor and supports up to 4 TB of DDR5 memory on a single socket.

Image: TechPowerUp

The board features 16 DIMM slots in a one-DIMM-per-channel layout to match Intel's 16-channel memory setup. Standard RDIMMs can reach 128 GB per module and 8000 MT/s. Using 256 GB 2U MRDIMM modules, the board can reach the 4 TB maximum capacity with a theoretical bandwidth of roughly 1.6 TB/s. Whether these speeds are fully sustained relies on the capabilities of the CPU, memory modules, and controller.

The DMRD16-2L+ does not have standard PCIe slots or an OCP NIC 3.0 connector. Instead, it provides up to 16 MCIO x8 connectors for a total of 128 lanes supporting PCIe 6.0 or CXL 3.0. Other features include one PCIe 5.0 x4 M.2 slot, two Intel I350 Gigabit Ethernet ports, and an ASPEED AST2700 BMC with VGA output. ASRock Rack has not shared pricing or availability for the board. Intel expects Xeon 7 production to ramp up in 2027.