GPU-Xpander Rack Mount

GPU-Xpander Rack Mount Products FamilyOverview
Add up to 16.48 teraflops of computational power to your datacenter. The GPU-Xpander Rack Mount Series are 1.5U or 4U, external PCI Express (PCIe) expansion chassis that can support 1, 2, 3 or 4-8 server connections and up to 16 graphics processing units (GPUs). This enables massive parallel calculations separate from the server, greatly enhancing system performance and flexibility.

  • Enhance capabilities without adding servers
  • Boost performance for faster results
  • Save space, weight and cost while increasing density


Solve Problems
If you're looking for oil, predicting the weather or just trying to develop a more life-like computer game, the GPU-Xpander Rack Mount products specialize in accelerating performance.

  • Tons of horsepower: 2, 6, 8 or 16 PCIe slots for GPU calculations
  • Lots of options: Supports up to 1, 2, 3 or 4-8 servers and 1-16 GPU cards for maximum flexibility
  • Super-fast results: Multiply the number of slots in almost any server with one or more PCIe slots available


GPU-Xpander Rack Mount products are specifically qualified with the Cubix GPU-Blade server but can connect to virtually any server on the market with a PCIe slot available with the Cubix host adapter. Furthermore, because GPU-Xpander Rack Mount products separate parallel processing from the server itself, you'll have greater freedom to allocate server assets to other tasks.

Crunch Numbers
By populating GPU-Xpander Rack Mount products with PCIe GPU cards, you can turn your servers into computing powerhouses that can satisfy your never-ending quest for customizable speed.

  • Up to 16.48 teraflops: 2 - 16 NVIDIA®  Tesla™  C2050 compute modules means up to 16,480 gigaflops of parallel calculating power at your disposal.
  • Best for the least: GPU-Xpander Rack Mount products provide a high-quality PCIe enclosure with up to 16 slots in one enclosure that is available with four NVIDIA Quadro 5000 GPUs for the lowest price available for this class of product.
  • Multiple configurations: Mix and match PCIe devices to set the right ratio for maximum application performance.
  • Flexibility: Connect GPU-Xpander Rack Mount 16 to two or four host computers
  • GPU-Xpander Rack Mount OverviewMore flexibility: Install GPUs with top-edge auxilliary (aux) power connectors -- the first PCIe enclosure of its kind with up to 2 - 16 slots in one chassis that support GPUs with top-edge aux power connectors. 


Install Almost Any Adapter
GPU-Xpander Rack Mount PCIe expansion chassis products are qualified for NVIDIA®  Tesla™  C1060, C2050 and C2070 compute modules, as well as for use with the Cubix GPU-Blade server. GPU-Xpander Rack Mount products also support almost any PCIe graphics controller or adapter.

  • Quadro™ FX 3800 / 4800 / 5800
  • Quadro 4000 / 5000 / 6000
  • Tesla™ C2050 / C2070
  • GeForce™ GTX 470 / 480 / 580


Compare to the Competition
When you compare Cubix GPU-Xpander Rack Mount products to Dell PowerEdge C410x, you can see the Cubix PCIe expansion chassis are less money with more value and flexibility for supporting a variety of GPUs or other controllers or adapters. Many GPUs require top-connected auxiliary power connectors, which Cubix GPU-Xpander Rack Mount products handle with ease, unlike the competition.

Easy to Own and Operate
Cubix designed GPU-Xpander Rack Mount PCIe expansion chassis products to concentrate tremendous computer power in a simple, scalable format that brings improved space-, weight- and cost-efficiency to your data center.

GPU-Manager for Microsoft Windows
Cubix GPU-Manager is an application that provides management of graphics processing unit (GPU) clusters in Cubix GPU-Xpander enclosures. The primary aims of GPU-Manager are asset management, health monitoring and technical support data of GPUs. GPU-Manager runs under Microsoft Windows but does not support PCIe devices that are not GPUs. If you run Microsoft Windows on computers connected to GPU-Xpander, you can download and install GPU-Manager by creating an account on the Cubix Website here.

  • Asset Management - GPU-Manager collects data from distributed GPU clusters into a central management console that lists the following:
    • all attached GPU-Xpander enclosures
    • the GPUs within each GPU-Xpander enlosure
    • GPU capabilities such as number of GPU cores, amount of RAM, etc.
    • operating system and software driver version numbers
  • Monitoring - GPU-Manager continuously monitors GPU clusters, and provides the following:
    • link status, number of lanes, and link speed for each enclosure
    • temperature, fan speed and GPU load characteristics for each GPU

Compact Package
GPU-Xpander Rack Mount products a expansion chassis designed to save you money and yet provide the flexibility you need as well as the power and speed you want.

GPU-Xpander Rack Mount Models

  • GPU-Xpander Rack Mount 2 provides 1.5U enclosure for two double-wide GPUs. Connect to an adapter in a PCIe x8 or x16 slot within a host computer. Connecting cables are available in standard x8 or optional x16.
  • GPU-Xpander Rack Mount 6 provides a 4U enclosure for any combination of the GPU-Xpander 5, 40 or 80 desktop models. It provides 3 GPU-Xpander units with 2 or 4 PCIe Gen 2 x16 slots each. Connect to the GPU-Xpander units with 3 host adapters in one host computer or with an adapter in each of 3 host computers. Connecting cables are available in standard x8 or optional x16 or x1.
  • GPU-Xpander Rack Mount 8 provides a 4U enclosure for 2 or 4 GPU-Xpander units with 2 or 4 PCIe Gen 2 x16 slots each. Connect to the GPU-Xpander units with the host adapters in one host computer or with an adapter in each of 2 or 4 host computers. Connecting cables are available in standard x8 or optional x16. Black Magic Design has certified DaVinci Resolve 8.0 to run with GPU-Xpander Rackmount 8.
  • GPU-Xpander Rack Mount 16 provides a 4U enclosure for 4 or 8 GPU-Xpander units with 2 or 4 PCIe Gen 2 x16 slots each. Connect to the GPU-Xpander units with the host adapters in one host computer or with an adapter in each of 2 -8 host computers. Connecting cables are available in standard x8 or optional x16.

Which GPU-Xpander Rack Mount products are best for me?
Use the questions listed here to identify which GPU-Xpander Rack Mount products are best suited for your requirements.

  • I want to connect one computer to 2 double-wide GPUs within a rack mount cabinet.
    GPU-Xpander Rack Mount 2 provides 2 PCIe x16 slots for double-wide GPUs within one 1.5U rack mount enclosure.
  • I want to connect one computer to 6 double-wide GPUs or three computers to a pair of GPUs each, all within a rack mount cabinet.
    GPU-Xpander Rack Mount 6 provides 6 PCIe x16 slots for double-wide GPUs or up to 12 slots for single-wide GPUs, all within one 4U rack mount enclosure.
  • I want to connect one to four computers to 8 double-wide GPUs within a rack mount cabinet.
    GPU-Xpander Rack Mount 8 provides 8 PCIe x16 slots for double-wide GPUs, all within one 4U rack mount enclosure. Black Magic Design has certified DaVinci Resolve 8.0 to run with GPU-Xpander Rackmount 8.
  • I want to connect multiple computers to 16 double-wide GPUs within a rack mount cabinet.
    GPU-Xpander Rack Mount 16 provides 16 PCIe x16 slots for double-wide GPUs, all within one 4U rack mount enclosure.


For details or answers to specific questions, visit one of the GPU-Xpander Rack Mount product pages or contact Cubix. For part numbers, prices and purchase information, visit the Cubix GPU On-line Store.