3U 16-slot Expansion Enclosure, PCIe 3.0

For OEM customers only.

Please call the factory for pricing information.

Please see Appliances for this product preconfigured.


The 3U Gen3 expansion enclosure supports16 full-height, full-length PCIe x16 double-wide PCIe cards in four hot-swappable canisters. It includes three redundant, hot-swappable 3000W power supplies, a system monitor and optional IPMI module..

Weight: 67 lb

The new 16-slot enclosure supports the latest Gen3 GPUs in four hot-swappable canisters with several versions of inputs. Each canister supports four double-wide GPUs with each slot operating at a theoretical 128Gbps bandwidth. The system is powered by three 3000-watt redundant power supplies.

Additional host-to-expansion versions are available including a single host to all 16 slots or two host servers to eight slots each.


This revolutionary expansion enclosure includes 16 full-height, full length, double-wide expansion slots. These slots can accommodate any PCIe card including the latest Gen3 GPUs. The enclosure is built rugged by OSS who understands how to design and manufacture products that can support high power requirements with sufficient cooling.  Several versions allow for multiple server inputs. Each of the four canisters can connect to a single host server.  This is ideal for high performance computing (HPC) server farms where several servers require multiple GPUs in limited rack space therefore 7U of rack space can accommodate four 1U servers, each accessing four GPUs. Another application may require a single server supporting up to sixteen PCIe cards. Often these are a variety of I/O cards that support different functions but require fast data transfers, like Flash storage cards. The 3U expansion system then becomes a massive storage system that can also accommodate a number of GPUs.


Product Features

•  Scalable 3U enclosure with removable canisters 

•  Remote system monitoring capability

•  16 PCIe x16 slots for NAND Flash or GPU cards

•  Three 3000-watt power supplies

•  Superior cooling with four 141 CFM fans

•  Up to four PCIe x16 Gen3 host cable adapters and cables

Enclosure • Dimensions: 17W x 5.25H x 33D inches (43W x 13.3H x 83.8D cm)
• Sturdy steel construction
• Weight: 33 lbs. (17.25 kg)
• Four 141 CFM fans
Front Panel • Removable front bezel with air filter
• Power switch
• 28 front panel status LEDs
Rear Panel • Four rear panel red/green LEDs
• Four rear panel PCIe x16 Gen3 connectors
• System monitor Ethernet connector
PCIe Backplane • Full height, double-wide slots
• Supports four canisters holding four PCIe x16 boards
• Four PCIe x16 cable connectors on rear of enclosure
Canisters • Independently power controlled by host system
• Scalable to accept 1 to 4 NAND Flash or GPU boards
Power Supplies Three 3000W hot-swappable, redundant power supplies
• AC input, 46-63Hz
• Power per canister: +12V @ 20A; +3.3V @ 12A; 3aux @ 2A
System Monitoring/Alarming • Monitors 8 temp sensors
• Monitors 4 fan tachometers
• Monitors 3 voltages including standard +12V, +5V, +3.3
Temperature Range Operating: 32º – 122ºF (0° – 50°C) Storage: -40° - +185° (-40° - +85°)
Canister LEDs • Four slot status LEDs
• One power LED
• One PCIe cable status LED
Agency Compliance Designed to meet:
• FCC Class A
• CE
• RoHS

Warranty Information:

One Stop Systems warrants this product to be free of defects in material and workmanship for the warranty period purchased by the customer (1 to 5 years) from OSS beginning on the date of delivery to the original purchaser from OSS . During this period, One Stop Systems will, at its option, repair or replace this product at no additional charge to the purchaser, except as set forth in this warranty agreement. OSS will, at its option, repair or replace this product at no additional charge to the purchaser, if the defect is related to the OSS manufactured product. OSS is not liable for any defects in material or workmanship of any peripherals, products or parts, which OSS does not design or manufacture (third party products). OSS will honor the original manufacturer’s warranty on these products. One Stop Systems will analyze the defective component and the customer will be charged only in the following instances:

  • No problem found: $125(U.S dollars)
  • Damage Due to Negligence or Mishandling: Parts and labor at $75 per hour with a $100 minimum charge (U.S. dollars). Receipt of damaged goods voids the One Stop Systems warranty.

Repair parts and replacement products will be furnished on an exchange basis and will be either new or reconditioned. All replacement parts and products shall become the property of OSS, if such parts or products are provided under this warranty agreement. In the event a defect is not related to the OSS manufactured product or is not covered by the third party product, OSS shall repair or replace the defective parts at the purchaser’s cost and deliver the defective parts to the purchaser. This limited warranty shall not apply if the product has been misused, carelessly handled, defaced, modified or altered, or if unauthorized repairs have been attempted by others. The above warranty is the only warranty authorized by OSS and is in lieu of any implied warranties, including implied warranty of merchantability and fitness for a particular purpose. In no event will One Stop Systems be liable for any such damage as lost business, lost profits, lost savings, downtime or delay, labor, repair or material cost, injury to person or property or any similar or dissimilar consequential loss or damage incurred by the purchaser, even if OSS has been advised of the possibility of such losses or damages.

Depending on the warranty service level purchased, warranty service is obtained by advanced replacement when accompanied by a signed Warranty Service Agreement form or by delivering the product to an OSS authorized repair facility with all parts and accessories as originally shipped, along with the proof of purchase and a Returned Merchandise Authorization (RMA) number. The RMA number is obtained in advance from OSS Support or Customer Service Department and is valid for 30 days. The RMA number must be clearly marked on the exterior of the original shipping container or equivalent. Purchaser will be responsible and liable for any missing or damaged parts. Purchaser agrees to pay for shipping charges one way, and to either insure the product or assume the liability for loss or damage during transit.

Ship to: One Stop Systems



2235 Enterprise Street, Suite 110

Escondido, CA 92029

Support: support@onestopsystems.com or 877-438-2724