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External PCIe Gen3 to GPU Desktop Enclosure

The Netstor PCIe Gen3 GPU enclosure NA255A uses the latest PCIe 3.0 technology with PCIe Gen3 ×16 host interface providing extremely fast data transfer rates up to 128Gbps between host and GPU enclosure. The PCIe Gen3 enclosure supports up to four (4) double-width GPU cards with the supply of the built-in extra 6+2 pin PCIe power connectors from the power source. The enclosure features four PCIe 3.0 ×16 slots on backplane, accommodating all combinations of PCIe Gen3 ×1, ×4, ×8 and ×16 GPU or PCIe cards for every application with backward compatibility with Gen2 GPU or PCIe cards.

The External Enclosure Dedicated for GPU Computing
Netstor PCIe Gen3 - 128GbpsAs Netstor external PCIe 3.0 GPU enclosure NA255A is designed to be dedicated for multi-GPU usage and supercomputing applications, much emphasis has been put on the ventilation design of the enclosure by the engineers of Netstor’s mechanical and R&D departments to assure users of highly efficient heat dissipation and low temperature to the high-performance GPU cards running inside. Therefore, constant working and stable operation to the GPU computing with abundant productivity is guaranteed. The Netstor GPU enclosure with multiple GPUs is surely committed to working on any mission critical tasks in high performance computing and so on.

Best Solution for GPU-Accelerated Applications
Ideal for professionals and developers to increase the performance of GPU-intensive applications, the power of multiple GPU cards inside the Netstor PCIe Gen3 GPU enclosure collaborates strongly with the CPUs inside host, server or workstation through the PCIe 3.0 ×16 host interface to accelerate the processing speed of application to up to tens of times compared to working on CPUs alone. The Netstor PCIe Gen3 GPU solution with multiple GPUs for HPC can be fully applied to fields including digital content creation, medical research, motionDSP, financial simulation, 3D seismic interpretation, molecular modeling, 3D Ultrasound TechniScan, gene sequencing, weather modeling, engineering design and astrophysics.

  • Extremely High-Speed 128Gbps PCIe 3.0 x16 host connectivity
  • Solid metal structure with stylish aluminum housing
  • Dedicated single 1200 watts power supply for GPU usage
  • Two quiet front 120x120x25 mm fan cooling for self-contained ventilation
  • Capable of up to four dual-slot GPU or any single-slot PCIe cards
  • Environmental Monitoring with Power/FAN/TEMP LEDs and mutable buzzer alarm
Form Factor  Desktop
Host Interface           Up to 128Gb/s external PCIe 3.0 x16 
No. of Slot

4* PCI Express 3.0 x8 (x16 connector)

Card Length Available

Supports full length,full height PCI Express Cards

LED Display for Enclosure

Power-On LED - Blue
FAN normal – green; Fan failure – Red
TEMP normal – green; TEMP Over 55°C – red


Front: two 120x120x25 mm cooling fans
75 CFM each fan @ full speed

AlarmBuzzer beeping for fan failure or over temperature (over 55°C) occurs
MaterialSolid metal structure with aluminum housing
Power Supply

Model : NA255A-XGPU 
Universal Single 1200W (High-Efficiency & Low Noise)
Input: 90~230 VAC/50-60 HZ
12V @ 100A
(Note: 1300W peak power @ 12 seconds) 


450 (D) x 175.8 (W) x 374 (H) mm
17.7 (D) x 6.9 (W) x 14.7 (H) inch

O.S. supportOS Independent
Host RequirementOne PCIe 3.0 x16 slot and system has sufficient PCIe resources
1. The tower MacPro under 10.9 Mavericks and 10.10
    Yosemite only supports up to 2 nVidia GPU cards.
2. Now the tower MacPro under 10.11 El Capitan is able to
    support up to 3 nVidia GPU cards again.
   Expansion Backplane
Package Content

Enclosure x 1
PCIe 3.0 x16 host adapter (full height & half Length)x 1
PCIe 3.0 x16 target board for upstream port x 1 (Installed into NA255A)
PCIe 3.0 x8 cable(1.5 meter) x2
Power Cord x 1

CD User Manual x 1

Ordering Information
 Model No.Description


Desktop PCIe Gen3 Expansion Enclosure, 1200W Single Power Supply with extra 4* PCIe power connectors 6+2 pin & 4* PCIe 6 pin for up to 4 double width GPU cards, with one PCIe Gen3 x16 host adapter and two PCIe x8 cables

Extra PCIe Gen3 x16 Host Adapter(full height & half Length)

  AAML6815Extra PCIe 3.0 x8 cable length in 1.5 meter
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