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Silver 2U rackmount chassis with four rear-access nodes and eight 2.5-inch drive bays

GIGABYTE

GIGABYTE H273-Z81-AAW1 barebone server 2U 4-node 8-bay 3000W

SKU CH-FT20-R1RRW MPN H273-Z81-AAW1

2U rackmount barebone housing four dual-socket AMD EPYC 9004/9005 nodes with 96 DDR5 slots, eight 2.5″ Gen4 NVMe/SATA/SAS bays, four M.2 slots, eight low-profile PCIe Gen5 x16 slots.

  • Form Factor2U Rackmount
  • WorkloadHigh Density Server
  • CPU TypeAMD EPYC 9005 & 9004 Series
  • CPU SocketSocket SP5
  • Installed CPUNo CPU Installed
  • Max Processors8
  • Supports dual AMD EPYC 9004/9005 processors per node
  • 96 DDR5 4800 RDIMM slots across four nodes
  • Eight 2.5" hot-swap bays for Gen4 NVMe/SATA/SAS
  • Eight low-profile PCIe Gen5 x16 expansion slots
  • 3000W power supply with cTDP up to 300W per CPU

High-density 2U 4-node server barebone

The GIGABYTE H273-Z81-AAW1 is a 2U rackmount chassis housing four independent dual-socket nodes. Each node accepts two AMD EPYC 9004 or 9005 series processors in SP5 sockets with cTDP up to 240W, or 300W with a low-profile card at 30°C ambient. The system targets high-density compute clusters and virtualization farms that need maximum throughput in minimal rack space.

Suited for integrators building Gen5-ready clusters

This barebone suits builders who populate their own CPUs, DDR5-4800 RDIMMs across 96 slots, and storage across eight 2.5-inch Gen4 NVMe/SATA/SAS hot-swap bays plus four M.2 slots. It is not for buyers wanting a pre-configured system with processors or memory installed, nor for workloads needing GPU acceleration beyond the eight low-profile PCIe Gen5 x16 slots and four OCP NIC 3.0 Gen5 x16 slots provided.

Dual-socket SP5 nodes with 12-channel DDR5

The defining specification is the dual AMD EPYC SP5 socket design per node delivering twelve memory channels and support for DDR5-4800 registered DIMMs up to 24 per node. This architecture determines whether your processor selection, memory capacity plan, and PCIe Gen5 lane budget align with the platform.

Highlights

  • Supports dual AMD EPYC 9004/9005 processors per node
  • 96 DDR5 4800 RDIMM slots across four nodes
  • Eight 2.5" hot-swap bays for Gen4 NVMe/SATA/SAS
  • Eight low-profile PCIe Gen5 x16 expansion slots
  • 3000W power supply with cTDP up to 300W per CPU

Specifications

BrandGIGABYTE
ModelH273-Z81-AAW1
Form Factor2U Rackmount
WorkloadHigh Density Server
CPU TypeAMD EPYC 9005 & 9004 Series
CPU SocketSocket SP5
Installed CPUNo CPU Installed
Max Processors8
CPU FeaturesDual processor per node, cTDP up to 240W
- With 1 x low-profile card at 30°C ambient, cTDP up to 300W
- With OCP NIC 3.0 at 25°C ambient, cTDP up to 300W
Memory Slots96 x 288Pin
Installed Memory SizeNo Memory Installed
Memory Type SupportedDDR5 4800
Channel Supported12 Channel
RegisteredYes
Installed HDDNo Storage Installed
Serial ATA8 x SATA 600
M.24 x M.2 (2280/22110), PCIe Gen4 x4, from CPU_0
PCI Express8 x LP PCIe Gen5 x16 slots
4 x OCP NIC 3.0 PCIe Gen5 x16 slots
2.5" Bays8 x 2.5" Gen4 NVMe/SATA/SAS
- (NVMe from CPU_1)
- (SATA from CPU_0)
LEDs4 x Power buttons with LED
4 x ID buttons with LED
4 x Reset buttons
4 x System status LEDs
1 x CMC status LED
1 x CMC reset button
Rear USB8 x USB 3.2 Gen1 ports (Type-A)
RJ458
Other Ports4 x MLAN ports
DisplayPort4 x Mini DisplayPorts
Max. PowerDual 3000W 80 PLUS Titanium redundant power supply
Fans4 x 80x80x80mm (16,900rpm)
TemperatureOperating temperature: 10°C to 35°C
Non-operating temperature: -40°C to 60°C
HumidityOperating humidity: 8-80% (non-condensing)
Non-operating humidity: 20%-95% (non-condensing)
Dimensions2U 4-Node - Rear access: 3.44" x 34.53" x 17.32"
Weight113.76 lbs.
Shipping weight52.48 kg
Package size1179 × 700 × 380 mm

Questions about this item

Will the 2U 4-node chassis accept the DDR5 4800 RDIMMs I already own for my current EPYC 9004 servers?

Yes, each node provides 24 DDR5 4800 RDIMM slots across 12 channels, so your existing DDR5 4800 registered modules are compatible.

How can I verify that all four nodes are operating correctly after I install CPUs, memory and drives?

Each node has a power button with LED, an ID button with LED, a reset button and a system status LED; the chassis also includes a CMC status LED and CMC reset button for overall monitoring.

What components are included with the barebone and which items must I purchase separately?

The unit ships as a 2U 4-node chassis with 8 x 2.5" Gen4 NVMe/SATA/SAS hot-swap bays, 4 x M.2 slots, 8 x LP PCIe Gen5 x16 slots, 4 x OCP NIC 3.0 slots and 8 x 1Gb/s LAN ports; CPUs, DDR5 4800 RDIMMs and storage drives are not included.

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