Specifications
Model
IW-RG658 PRO
Form Factor
6.5U rackmount — 4.5U upper GPU chamber + 2U lower system chamber
Industry Standard
Compatible with EIA-RS310D standard 19-inch cabinets
GPU Support
Up to 8x NVIDIA RTX A6000 or RTX 6000 Pro GPUs (PCIe converter board + MCIO cabling pre-installed)
GPU Chamber Clearance
Up to 360 mm GPU length in the 4.5U upper chamber
Processors
2x 5th Gen Intel Xeon Scalable, up to 350 W TDP each
Memory
Up to 8 TB across 32x DDR5 ECC DIMM slots, up to 4800 MHz
Expansion Slots
16x full-height PCIe Gen5 slots; up to 8 GPUs via a single PCIe converter board
Storage — Front
8x hot-swap E1.S 15 mm NVMe trays (optional)
Storage — Rear
4x 2.5-inch hot-swap trays (pre-installed)
Power Supply
Pre-installed 3+1 80 PLUS Titanium CRPS; 9600 W total capacity
Cooling — GPU
10x 80 x 56 mm PWM front fans at 17,000 RPM
Cooling — Board
4x 80 x 56 mm PWM rear fans at 17,000 RPM
Thermal Design
Dual-chamber architecture with independent GPU and motherboard airflow paths
Front Panel
Power on/off, system reset, USB 3.0 x2
Indicators
Power LED, LAN 1 / LAN 2, system LED, HDD LED
Material
SGCC steel, 1.2 mm thickness
Rail Kit
30-inch tool-less ball-bearing slide rails included
Dimensions (D x W x H)
650 x 490.6 x 288.9 mm (25.59 x 19.31 x 11.37 in)
Weight
Net 35.33 kg / gross 39.38 kg
Serviceability
GPU bracket support, hot-swappable fan cage and carry handles
Motherboard Form Factor
Proprietary, 16.93 x 13.79 in
Overview
The InWin IW-RG658 PRO is a 6.5U rackmount platform aimed at the 8-GPU workstation-server tier, the layer of AI infrastructure that sits between a 4U PCIe GPU box and a full rack-scale system. Its dual-chamber architecture puts a 4.5U GPU chamber above a 2U system chamber, so the eight accelerators breathe in their own airflow path instead of competing with CPU, DIMM and drive cooling.
Compute is built around a proprietary dual-socket board that accepts two 5th Gen Intel Xeon Scalable processors at up to 350 W each and 32 DDR5 ECC DIMMs for a maximum of 8 TB of system memory — enough to hold large LLM working sets and multi-model inference pipelines in RAM. A pre-installed PCIe converter board with MCIO cabling fans out to 16 full-height PCIe Gen5 slots, supporting up to eight NVIDIA RTX A6000 or RTX 6000 Pro GPUs with up to 360 mm of card length.
Thermal headroom matches the density: fourteen 80 x 56 mm PWM fans spin at 17,000 RPM, ten across the GPU chamber and four over the motherboard, and the platform is fed by a 3+1 redundant 80 PLUS Titanium CRPS configuration rated to 9,600 W. Eight hot-swap E1.S 15 mm NVMe bays handle scratch and dataset storage with four additional 2.5-inch rear bays for boot or metadata drives.
Key Benefits
Eight-GPU density in 6.5U with a dedicated 4.5U GPU chamber and 360 mm card clearance. 9.6 kW of Titanium-class power on a 3+1 CRPS topology for full-load sustained training. 32 DDR5 slots / 8 TB for large-model memory residency. E1.S NVMe storage — eight hot-swap 15 mm bays matched to modern AI data pipelines. Serviceable by design — hot-swap fan cage, GPU brackets and carry handles.
Applications
8-GPU AI training and fine-tuning nodes, LLM inference servers at the enterprise edge, HPC clusters built from PCIe GPU platforms, media and rendering farms, VDI with GPU acceleration, and barebone programmes for integrators who supply their own branding and firmware.
Request a Quote — INWIN IW-RG658 PRO — 6.5U 8-GPU AI SERVER CHASSIS, 9.6 KW TITANIUM POWER
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