OEM 2U ASUS Rack Server NVMe SATA PCIe 5.0 RS521A-E12-RS24U

ASUS RS521A-E12-RS24U: 2U Single-Socket EPYC 9005 Server

The ASUS RS521A-E12-RS24U is a high-density 2U rack server built for modern data centers, AI inference, HPC, virtualization, and software-defined storage. It combines an AMD EPYC 9005 processor (up to 192 Zen 5c cores, 360W TDP) with 24 DDR5 DIMM slots (up to 3TB at 5200MHz) on a 12-channel architecture.

Exceptional Storage & Expansion

• Front: 24x hot-swap 2.5" bays (all NVMe flash)

• Rear: 2x SATA III bays

• Internal: 2x M.2 slots (PCIe Gen4)

• Expansion: 5x PCIe 5.0 slots + 1x OCP 3.0 Gen5 x16 (supports up to 2 dual-slot GPUs like NVIDIA A100)

Management & Security

• BMC: ASMB11-iKVM (ASPEED AST2600) with KVM-over-IP and Redfish API

• Software: ASUS Control Center for centralized management

• Security: Hardware Root-of-Trust, optional TPM/PFR modules

Cooling & Power

• 4x hot-swap fans with optimized air cooling

• 1+1 redundant 80 PLUS Titanium PSUs (1600W/2000W) for lower PUE

Key Specifications

• Networking: Dual 1GbE (Intel I350) + dedicated management LAN

• I/O: USB 3.2 Gen1, VGA front/rear

• Dimensions: 449 x 88.1 x 840 mm (17.68" x 3.47" x 33.07")

• Weight: 19.14 kg (42.2 lbs)

• Certifications: ENERGY STAR, FCC Class A, CE

Why choose this server? Unmatched core density (192 cores/2U), massive memory capacity (3TB), industry-leading NVMe density (24 drives), PCIe 5.0 readiness, and enterprise reliability. Ideal for all-flash arrays, database management, and cloud infrastructure—delivering high performance with optimized TCO and full AMD EPYC 9005 support.