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ASUS ESC4000A-E12 2U rackmount server barebone, silver metal chassis with front drive bays and rear expansion slots

ASUS

ASUS ESC4000A-E12-26WGP 2U barebone server 12 DDR5 slots 2600W redundant

SKU CH-NAHQ-BX4NH MPN ESC4000A-E12-26WGP

2U rackmount barebone for AMD EPYC 9004 with 12 DDR5 slots, eight PCIe 5.0 slots and 2600W redundant power

  • ProcessorAMD EPYC 9004 series (up to 400 W)
  • Installed RAMNo Memory Installed
  • Form factor2U Rackmount
  • Processor socketSocket SP5
  • Target workloadAI/ML/HPC
  • Preinstalled processorNo CPU Installed
  • Supports up to 3 TB DDR5 memory across 12 channels
  • Four dual-slot GPUs fit in eight PCIe 5.0 slots
  • Redundant 2600 W 80 Plus Titanium power supplies
  • Liquid or enhanced air cooling for up to 400 W CPU
  • Six front bays for NVMe, SATA and SAS drives

2U GPU server barebone for AI and HPC workloads

This ASUS ESC4000A-E12-26WGP is a 2U rackmount barebone designed for AI, ML and HPC tasks. It accommodates a single AMD EPYC 9004 series processor and up to four dual-slot GPUs. The chassis targets builders who need dense GPU compute in a standard rack form factor.

Single Socket SP5 processor

The board provides one Socket SP5 for 4th Generation AMD EPYC 9004 CPUs up to 400W TDP. Twelve 288-pin DDR5 slots support 4800 or 4400 MHz RDIMM and 3DS modules across 12 channels for a maximum of 3TB. Buyers who require dual-socket scaling cannot use this platform.

Independent CPU and GPU airflow tunnels with 2600W

Separate airflow tunnels isolate CPU and GPU thermals for air or liquid cooling. Two 2600W 80 Plus Titanium redundant supplies deliver uninterrupted power. No installed CPU, memory or storage means thermal and acoustic behaviour depends entirely on the components selected.

How it compares

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

Price $3,048.99
Pricier than about 61% 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 nameASUS
Model nameESC4000A-E12-26WGP
Target workloadAI/ML/HPC
Processor
ProcessorAMD EPYC 9004 series (up to 400 W)
Processor socketSocket SP5
Preinstalled processorNo CPU Installed
Max supported CPUs1
Processor details4th Generation AMD EPYC Processorswith AMD 3D V-Cache technology
Memory
Installed RAMNo Memory Installed
RAM slots12 × 288Pin
Maximum supported memory3 TB
Supported memoryDDR5 4800/4400 RDIMM/RDIMM 3DS
Memory channels12 Channel
Storage
Preinstalled storageNo Storage Installed
2.5" bays2
3.5" bays4
Connectivity
Primary LAN controllerIntel I350-AM2
Top LAN speed1 Gigabit
Ports & slots
PCIe slotsRear:
- 8 x PCIe x16 slots (Gen5 x8 link, FH,FL) for single-slot GPU cards
- 1 x PCIe x16 slots (Gen5 x16 link, FH, HL)
- 1 x PCIe x16 slot (Gen5 x16/x8 link, FH, HL)
- 1 x PCIe x8 slot (Gen5 x0/x8 link, LP, HL)
Front: 1 x PCIe x8 slot (Gen5 x8 link, LP, HL)
Front USB ports4 x USB 3.2 Gen1
VGA ports1 x VGA (Rear)
Rear USB ports2 x USB 3.2 Gen1
Ethernet port2 x Gigabit LAN ports
Extra ports1 x Management port
Power
Power supply2600 W Redundant 80 Plus
Size & build
Form factor2U Rackmount
Product dimensions31.5 in × 17.3 in × 3.5 in
Product weight52.91 lb (24 kg)
Shipping weight8.17 kg
Package size1113 × 594 × 260 mm
Environment & compliance
Temperature rangeOperation temperature: 10 °C to 35 °C / Non operation temperature: -40 °C to 70 °C
Humidity rangeNon operation humidity: 20% ~ 90% ( Non condensing)

Questions about this item

What does the 400 W CPU rating mean once the processor is installed in this server?

The single SP5 socket accepts one AMD EPYC 9004 series processor with a maximum TDP of 400 W, and the cooling design provides independent airflow tunnels for that thermal envelope.

How does the PCIe 5.0 interface cap GPU bandwidth in this chassis?

Eight rear slots run at Gen5 x8 electrical for single-slot GPUs, while two additional slots provide Gen5 x16 links for dual-slot cards or other expansion.

What physical space and mounting does this 2U barebone require?

It fits a standard 2U rackmount bay, supports up to four dual-slot GPUs, and includes front bays for two 2.5-inch and four 3.5-inch drives.

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