Most PCs Ship Within 5 Business Days – Assembled & Supported in America Since 2013

From: $14,527.00

Configure Your Orbital Quantum | 4x RTX 5090 / 6000 AI Workstation

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From: $14,527.00

Packaged in Custom Wooden Crate - Ships Within 14 Days

Orbital Quantum | 4x RTX 5090 / 6000 AI Workstation

The Orbital Quantum X4 is an incredibly powerful and unique computer for deep learning, packed with a Threadripper CPU and up to 4x Nvidia RTX 5090 GPUs offering perhaps the best price-to-performance ratio of any AI workstation on the market. 

Specs
AMD Threadripper Pro 9000 series CPUs, up to 96-Cores, 192-Threads. 
Up to Four Nvidia RTX 5090 32GB or Nvidia RTX 6000 Pro Blackwell Workstation Edition 96GB GPUs

Up to 2TB Registered ECC RAM – DDR5 (8 DIMM slots)
4x Gen 5.0 M.2 slots, 6x SATA 6Gbps slots
Intel X550-AT2 Dual 10GbE Ethernet
2x USB Type C (4.0), 7x USB Type A (3.2)

Power & Dimensions:
Dual 1700w 80 Platinum Certified Fully Modular PSUs with Two Power Cables (Each PSU requires at least an independent 120V 15A circuit)
6U Tall, designed as a freestanding case – (25.5″ wide x17″ deep x10.5″ tall), ~70 Pounds

Shipping: 
The Orbital Quantum X4 is shipped via FedEx Freight in a custom-built wooden crate on a pallet. The computer is double boxed and includes extensive open-cell anti-static foam, custom-formed expanding foam, and other measures to ensure safe delivery. Grade-level delivery is acceptable. We will contact you after purchase to arrange for delivery scheduling and payment. 

Lead Time: 
Most Quantum X4 configurations can be shipped within 14 Business Days.

Why Orbital?
Orbital Computers was started in 2013 to provide the highest quality workstation computers optimized for specialty applications. For over 11 years, we have been delivering on that promise through a combination of innovative workstation design, exceptional US-based, in-house tech support, and incorporation of our customers’ feedback into the core of our operations. We are a proven and stable workstation manufacturer that will proudly stand behind our product and operational know-how to help you succeed in your mission. Give us a call today to discuss how we can help you accelerate – 877-976-7510 

4x 4090 Workstation - Orbital Computers
4x 4090 Workstation - Orbital Computers
4x 4090 Workstation - Orbital Computers

Questions? Ask a configuration expert:

Recommended Orbital Quantum Configurations

Base Orbital Quantum - 1x RTX 5090 (32GB vRAM)

Runs 8B–32B local models, ComfyUI image workflows, and LoRA fine-tuning on 32GB today — built on a Threadripper PRO chassis already lane-wired, powered, and cooled for three more 5090s, so the step up to 128GB is a card swap rather than a new machine. For the solo developer or researcher who wants to start now without rebuying the platform later.
$ 14,527
  • 1x RTX 5090 32GB GPUs
  • AMD Threadripper Pro 9955WX CPU
  • 64GB DDR5 ECC R-DIMM RAM
  • 2TB NVMe PCIe SSD
  • Ubuntu 24.04 LTS

Recommended Orbital Quantum - 4x RTX 5090 (128GB vRAM)

128GB of VRAM and 7.2 TB/s of aggregate memory bandwidth for 70B-class inference, gpt-oss-120b, and keeping several models or training jobs resident at once — the price-per-token pick for small teams serving a shared endpoint, or researchers who need four experiments running in parallel instead of queued.
$ 34,569
  • 4x RTX 5090 32GB GPUs
  • AMD Threadripper Pro 9955WX CPU
  • 128GB DDR5 ECC R-DIMM RAM
  • 2TB NVMe PCIe SSD
  • Ubuntu 24.04 LTS

Max Performance Quantum - 4x RTX PRO 6000 Blackwell (384GB vRAM)

384GB of ECC VRAM across four dual-slot cards for 200B+ models, long-context work, and multi-day full fine-tuning runs that can't be partitioned across small pools — for regulated environments and labs bringing cloud workloads in-house, where one large memory pool and ECC reliability matter more than raw price per teraflop.
$ 73,373
  • 4x RTX 6000 96GB GPUs
  • AMD Threadripper Pro 9955WX CPU
  • 256GB DDR5 ECC R-DIMM RAM
  • 4TB NVMe PCIe SSD
  • Ubuntu 24.04 LTS