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Silver 1U rack server front with four 2.5 inch drive bays and redundant power supplies

ASUS

ASUS RS501A-E12-RS4U-16TWH barebone server 1U EPYC 9005 24 DDR5 4 NVMe 1600W

SKU CH-QFE7-BK424 MPN RS501A-E12-RS4U-16TWH

1U rack server with single AMD EPYC 9005 socket, 24 DDR5 ECC slots, four hot-swap NVMe bays, three PCIe 5.0 slots and redundant 1600W PSU

  • 1U rack design saves data-centre space
  • Single AMD EPYC 9005 socket scales to 192 Zen 5c cores
  • 24 DDR5 ECC DIMM slots deliver 12-channel bandwidth up to 5200MHz
  • Four 2.5-inch hot-swap NVMe bays plus two PCIe 5.0 M.2 slots
  • Redundant 1600W 80PLUS Titanium PSU ensures uptime

1U EPYC 9005 Barebone Server

The ASUS RS501A-E12-RS4U-16TWH is a 1U rackmount barebone designed for single AMD EPYC 9005 or 9004 series processors. It provides 24 DDR5 ECC registered memory slots in a 12-channel architecture with support for up to 3TB capacity. The chassis includes four hot-swap 2.5" NVMe drive bays, two PCIe 5.0 M.2 slots, three PCIe 5.0 expansion slots and an OCP 3.0 mezzanine slot. Dual redundant 1600W titanium-efficiency power supplies are included.

Suits dense compute and storage nodes.

This platform suits operators deploying high-density compute or all-flash storage nodes where a single 450W TDP processor and up to two single-slot GPUs meet workload requirements. Remote management is handled by the ASMB11-iKVM BMC with ASPEED AST2600 and hardware root-of-trust security. Buyers needing dual-processor scaling, full-height double-width GPU support or more than four front NVMe bays should evaluate alternative chassis.

Single SP5 socket defines processor choice

The single AMD SP5 socket is the specification that decides compatibility: only one EPYC 9005 or 9004 series CPU can be installed. Memory population must use DDR5 ECC registered DIMMs across the 24 slots to activate the full 12-channel bandwidth. Power delivery is sized for processors up to 450W TDP with 1+1 redundant 1600W titanium units.

Highlights

  • 1U rack design saves data-centre space
  • Single AMD EPYC 9005 socket scales to 192 Zen 5c cores
  • 24 DDR5 ECC DIMM slots deliver 12-channel bandwidth up to 5200MHz
  • Four 2.5-inch hot-swap NVMe bays plus two PCIe 5.0 M.2 slots
  • Redundant 1600W 80PLUS Titanium PSU ensures uptime

Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 450 W TDP EPYC 9005 CPU generate inside the 1U chassis during continuous operation?

The enhanced-volume air-cooling heatsink is designed to handle processors up to 450 W TDP within the 1U form factor.

Which processor must I supply to complete this barebone server?

A single AMD EPYC 9005 or 9004 series CPU for the SP5 socket is required.

Can I keep my PCIe 4.0 add-in cards and use them in the three PCIe 5.0 slots?

The three PCIe 5.0 slots are backward compatible with PCIe 4.0 cards.

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