ASUS RS501A-E12-RS4U: 1U Single-Socket EPYC 9005 Server

The ASUS RS501A-E12-RS4U is a high-density 1U rack server designed for virtualization, HPC, AI inference, database management, and edge computing. It pairs an AMD EPYC 9005 processor (up to 192 Zen 5c cores, 450W TDP) with 24 DDR5 DIMM slots (12 channels) supporting up to 3TB of memory at speeds up to 6400MHz.

Storage & Expansion

• Front: 4x hot-swap 2.5" bays (NVMe/SATA/SAS)

• Internal: 2x M.2 slots (PCIe Gen4 x4 or SATA)

• Expansion: 3x PCIe 5.0 slots (1x FH/HL x16, 1x LP x16, 1x LP x8) + 1x OCP 3.0 Gen5 x16

• GPU Support: Up to 2 single-slot GPUs for AI acceleration

Management & Security

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

• Software: ASUS Control Center for centralized monitoring

• Security: Optional TPM and PFR (Platform Firmware Resilience) modules

Cooling & Power

• Enhanced Volume Air Cooling (EVAC) heatsink supports CPUs up to 450W

• 1+1 redundant hot-swap PSUs: 1200W Platinum or 1600W Titanium

Key Specifications

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

• Rear I/O: 2x USB 3.2 Gen1, 2x RJ45 LAN, 1x VGA, 1x COM port

• Dimensions: 449 x 43.85 x 842.5 mm (17.68" x 1.73" x 33.15")

• Weight: 13.15 kg (29 lbs)

• Certifications: ENERGY STAR, FCC Class A, CE; Ubuntu 24.04 LTS certified

Why choose this server?

• Industry-leading core density: 192 cores in 1U

• Massive memory capacity: 3TB DDR5 at 6400MHz

• PCIe 5.0 ready: 2x bandwidth over PCIe 4.0

• Flexible storage: 4 NVMe + 2 M.2

• Cost-effective: Single-socket design reduces software licensing costs

• Enterprise reliability: Redundant power, EVAC cooling for high TDP, and 3-year warranty

Ideal for organizations needing a powerful, compact, and future-proof 1U server platform for modern data center and edge environments.