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Silver 2U rack server chassis with twelve front drive bays and four full-height GPU slots visible at the rear

GIGABYTE

GIGABYTE R263-SG0-AAL1 barebone server 2U 4 GPU 12 bay

SKU CH-A7NN-10K3G MPN R263-SG0-AAL1

2U rackmount barebones server holds twelve 3.5 or 2.5 inch hot-swap bays and four full-height PCIe Gen5 GPU slots for a single Xeon CPU

  • ProcessorSupport 4th/5th Gen Intel Xeon Scalable and Intel Xeon CPU M
  • Graphics processorAspeed AST2600
  • Installed RAMNo Memory Installed
  • Form factor2U Rackmount
  • Processor socketLGA 4677
  • Target workloadGeneral Purpose Server
  • Supports four dual-slot GPUs with four PCIe Gen5 x16 slots
  • Single 5th/4th Gen Intel Xeon Scalable processor up to 350W TDP
  • 16 DDR5 RDIMM slots across eight channels for up to 4TB memory
  • 12 hot-swappable 3.5/2.5-inch SATA/SAS-4 drive bays
  • M.2 slot with PCIe Gen3 x4 interface for 2280/22110 cards

2U 4-GPU barebone for compute workloads

The GIGABYTE R263-SG0-AAL1 is a 2U rackmount barebone that accepts one LGA 4677 processor from the 4th or 5th Gen Intel Xeon Scalable families or the Intel Xeon CPU Max Series. It targets teams building dense GPU clusters for AI training, HPC or rendering where four full-height Gen5 cards fit in a single chassis.

Upgrade from single-GPU or PCIe Gen4 platforms

Moving to this chassis makes sense when workloads outgrow a single accelerator or when Gen4 bandwidth limits multi-GPU scaling. The four FHFL PCIe Gen5 x16 slots plus one OCP 3.0 Gen5 x16 slot remove that bottleneck, and the 350 W CPU ceiling supports the highest-frequency parts without throttling.

Verify CPU cooler clearance and power infrastructure

Confirm the chosen heatsink fits the 2U height and that the rack PDU can deliver enough current for a 350 W processor plus four dual-slot GPUs. Memory must be DDR5 RDIMM; the 16 slots run in eight channels up to 4 TB. Storage uses 12 hot-swap bays for 3.5 or 2.5 SATA/SAS drives and one M.2 M-key slot at PCIe Gen3 x4.

How it compares

Measured against everything we stock in Barebone Servers & DIY Kits, at today’s prices. Recalculated every night.

Price $2,025.99
Cheaper than about 63% of the 532 comparable items (median $2,503.49).

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameGIGABYTE
Model nameR263-SG0-AAL1
Target workloadGeneral Purpose Server
Processor
ProcessorSupport 4th/5th Gen Intel Xeon Scalable and Intel Xeon CPU Max Series Processor
Processor socketLGA 4677
Preinstalled processorNo CPU Installed
Max supported CPUs1
Processor detailsSingle processor, TDP up to 350 W
ChipsetIntel C741
Memory
Installed RAMNo Memory Installed
RAM slots16 × 288Pin
Maximum supported memory4 TB
Memory channels8 Channel
Storage
Preinstalled storageNo Storage Installed
M.2 slots1 x M.2 slot:
- M-key
- PCIe Gen3 x4, from PCH
- Supports 2280/22110 cards
Hot-swap drive baysFront side:
12 × 3.5 in/2.5 in SATA/SAS-4 hot-swappable bays
Graphics
Graphics processorAspeed AST2600
Connectivity
Top LAN speed1 Gigabit
Ports & slots
PCIe slots4 x FHFL PCIe Gen5 x16 slots for GPUs
1 x OCP 3.0 Gen5 x16 slot
Front USB ports2 x USB 3.2 Gen 1
DisplayPort connectors1 x Mini DisplayPort
Rear USB ports2 x USB 3.2 Gen 1
Extra ports1 x MLAN
Power
Power supplyDual 2700 W 80 PLUS Titanium redundant power supply
Size & build
Form factor2U Rackmount
Product dimensions3.44 in × 17.24 in × 32.09 in
Product weight61.29 lb (27.8 kg)
Shipping weight29.80 kg
Package size1077 × 679 × 300 mm
Environment & compliance
Temperature rangeOperating temperature: 10 °C to 35 °C
Non-operating temperature: -40 °C to 60 °C
Humidity rangeOperating humidity: 8%-80% (non-condensing)
Non-operating humidity: 20%-95% (non-condensing)
More details
Registered statusYes
Button count1 x NMI button
1 x Reset button
Indicator lights1 x Power button with LED
1 x ID button with LED
2 x LAN activity LEDs (disabled)
1 x Storage activity LED
1 x System status LED
Fan configuration4 × 80 × 80 × 38 mm (18,300 rpm)

Questions about this item

What rack depth and clearance are required for the 2U chassis with 12 front drive bays?

The server occupies a standard 2U rack height and uses 12 x 3.5"/2.5" hot-swap bays at the front; ensure the cabinet depth accommodates the full chassis length plus cable bend radius behind the drive cage.

Which slot order should be used when installing the four dual-slot Gen5 GPUs to avoid blocking the OCP 3.0 adapter?

Populate the four full-height full-length PCIe Gen5 x16 slots first; the single OCP 3.0 Gen5 x16 slot sits separately and remains accessible once the GPU brackets are secured.

What is the maximum registered DDR5 capacity the 16 DIMM slots can hold with a 5th Gen Xeon?

Up to 4 TB of registered DDR5 across 16 x 288-pin slots running in 8-channel mode at up to 5600 MT/s (1 DPC) or 4400 MT/s (2 DPC).

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