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Black 4U rackmount server chassis with dual front handles and three 120mm fans

Athena Power

Athena Power RM-4U8G525 4U Rackmount Server Chassis

SKU CH-FAFY-9YCPP MPN RM-4U8G525

4U rackmount server chassis with eight full-height PCIe slots, dual hot-swap 2.5″ SAS/SATA backplane, and three 120mm fans

  • Form factor4U
  • Chassis styleRackmount
  • Housing materialSGCC (T=1.2 mm)
  • Supported motherboard sizesMicroATX (9.6 in x 9.6 in) ATX (12 in x 9.6 in) E-ATX (12 in
  • 5.25-inch external bays2
  • 3.5-inch internal bays2 × 3.5 in HDD Drive Bay (at Chassis Front)
  • Supports GPU cards up to 13 inches long with 8 full-height expansion slots
  • Hot-swap 2.5" SAS/SATA dual-channel backplane enables drive changes without shutdown
  • Three 120mm DC fans provide direct airflow for high-density components
  • Fits standard 19-inch racks in a 4U form factor for space-efficient deployment
  • SGCC steel construction at 1.2mm thickness withstands heavy-duty industrial use

GPU server chassis for GPU-intensive workloads

The Athena Power RM-4U8G525 is a 4U rackmount server chassis built for GPU server, gaming server and Bitcoin mining applications. It supports motherboards up to E-ATX 12 x 13 inches and fits a standard 19-inch rack. Dual front handles simplify mobility in dense deployments.

Eight full-height slots and hot-swap drive bays

Eight full-height PCI expansion slots accept cards up to 13 inches long, with room for four dual-slot GPUs. An enterprise-grade 2 x 2.5-inch SAS/SATA dual-channel hot-swap backplane provides removable storage. Three 120mm DC fans and two external 5.25-inch bays complete the cooling and expansion layout.

Replaces smaller rack cases when GPU density matters

The 4U height and 8-slot design replace 2U or 3U chassis that cannot fit four dual-slot cards or lack hot-swap 2.5-inch bays. Builders needing only one or two GPUs, or those requiring 3.5-inch internal arrays, will find the larger form factor unnecessary.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $323.99
Pricier than about 70% of the 1,006 comparable items (median $222.49).

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Specifications

Product
Brand nameAthena Power
Model nameRM-4U8G525
Product colorBlack
Storage
5.25-inch external bays2
3.5-inch internal bays2 × 3.5 in HDD Drive Bay (at Chassis Front)
Ports & slots
Expansion card slots8 full-height PCI expansion slots
Size & build
Form factor4U
Chassis styleRackmount
Housing materialSGCC (T=1.2 mm)
Product dimensions7 in × 17.32 in × 21.57 in
Product weight28.6 lb (13 kg)
Shipping weight12.79 kg
Package size681 × 572 × 328 mm
Compatibility
Supported motherboard sizesMicroATX (9.6 in x 9.6 in)
ATX (12 in x 9.6 in)
E-ATX (12 in x 13 in)
Mini-ITX (6.7 in x 6.7 in)
More details
120mm fan count3 × 120 mm DC Cooling Fans

Questions about this item

Will a 13-inch dual-slot GPU fit alongside an E-ATX board in this 4U chassis?

Yes, the case supports 4 dual-slot 13-inch GPU cards and motherboards up to E-ATX 12 x 13 inches with 8 full-height PCIe slots.

How do I confirm the hot-swap backplane and cooling are operating after assembly?

Front indicators show power, HDD activity, LAN 1, LAN 2 and warning status; three 120 mm DC fans spin up on power-on.

What drive hardware is included and what must I add for the 5.25-inch bays?

Two hot-swap 2.5-inch SAS/SATA backplane modules and two internal 3.5-inch bays are built in; 5.25-inch devices are not supplied.

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