Rack server ASUS RS520A-E12-RS24U Socket SP5, AMD EPYC 9004, 1 CPU, 24x DDR5 DIMM, 6.14TB max, 2U, 26x 2.5 inch bays, 1600W PSU

The ASUS RS520A-E12-RS24U is a 2U rack server with Socket SP5 designed for one AMD EPYC processor and up to 6.14 TB of DDR5 memory across 24 DIMM slots. It supports flexible storage configurations including M.2 SSDs and HDDs, integrates an Aspeed AST2600 onboard graphics controller, and provides Gigabit Ethernet via the Intel I350-AM2 LAN controller. The chassis is a 2U grey rack unit powered by a 1600 W power supply and aimed at data center workloads that require high memory capacity and PCIe 5.0 I/O performance.

Advantages

This server platform is PCIe 5.0 ready, offering doubled bandwidth compared with PCIe 4.0 and enhanced scalability while remaining backwards compatible. It is built for AMD EPYC 9004 Series processors, which deliver next-generation 5nm performance, support for DDR5 memory and high-speed PCIe Gen5 I/O. The combination of a single SP5 socket, 24 DIMM slots and a high-capacity power supply makes the system suitable for memory-intensive tasks, AI/ML workloads and high-throughput networking.

Suitable for

• Virtualization and large-scale VM hosts
• AI/ML training and inference with large memory footprints
• High-performance computing (HPC) and in-memory databases
• Storage and I/O intensive applications requiring PCIe 5.0 bandwidth

Key specifications

• Form factor: 2U rack
• Socket: SP5 (supports 1 AMD EPYC processor)
• Maximum internal memory: 6144 GB DDR5 (24 DIMM slots)
• Power supply: 1600 W
• Onboard graphics: Aspeed AST2600
• LAN controller: Intel I350-AM2 (Gigabit Ethernet)
• Storage: supports M.2 SSDs and HDDs (configurable)
• Weight: 19.14 kg
• Product colour: Grey

How to use

Install a compatible AMD EPYC 9004 Series processor into the SP5 socket and populate DDR5 DIMMs across up to 24 slots according to memory channel guidelines for optimal performance. Configure storage devices such as M.2 SSDs or HDDs in available bays and connect network interfaces through the Intel I350-AM2 controller. Ensure the 1600 W power supply is correctly connected to redundant power feeds if required and mount the 2U chassis into a standard server rack. Apply BIOS settings and OS-level drivers (including Aspeed and Intel NIC drivers) to enable full functionality.

Recommendations

For memory-intensive workloads and AI/ML tasks, populate all memory channels evenly and use AMD EPYC 9004 processors to leverage DDR5 and PCIe 5.0 bandwidth. Use enterprise-grade SSDs for high I/O reliability and configure proper cooling and power redundancy in the rack to maintain stability under sustained loads.