M.2 card with overlay
Mezzanine Board
M.2 card with overlay
Mezzanine Board

CPCIe M.2 Flash Storage Module

The CPCIe 3U M.2 Flash Memory Board supports up to 32TB of flash in a single PXIe or CPCIe Type 2/Hybrid slot. The backplane connection supports up to PCIe 3.0 x8 to the M.2 drives for up to 64Gb/s bandwidth to the M.2 drives. Provides up to 32TB of storage in the card when using a mezzanine and 4TB modules.

SKU: OSS-CPCIe3-3U-CR-4-M.2, OSS-CPCIe3-3U-CR-8-M.2
Weight: 3 lb

  • 3U CPCIe form factor
  • Single slot
  • CPCIe/PXIe Type 2 slot connection
  • Supports 2 OR 8 M.2 modules in a single slot



  • Includes 1 board (OSS-478)
  • Supports 2 M.2 modules in a single slot


  • Includes 2 boards (OSS-478 + OSS-481)
  • Supports a total of 8 4.2 modules in a single slot, (4) from OSS-478 and (4) from the OSS-481 Mezzanine board
Form Factor:

3U CPCIe/PXIe Type 2

Single slot order time option (not field upgradeable)


3.94 x 6.3” (100 x 160 mm) (H x L)

  • Single Slot 4HP, 0.8" width (OSS-478)
  • Single Slot 8HP, 0.8" width (OSS-478 + OSS-481 mezzanine)
Switch: PLX 8748 48-lane PCIe 3.0 Switch

Backplane Interface:

PCIe x8 Gen3 (64Gb/s)
M.2 Interface: Four or Eight x4 Gen3 (32Gb/s) to each M.2
M.2 Modules: 80mm up to 4TB each
RAID Configurations: Supports JBOF and Software RAID 0, 1, 5, 10 and 50
Front Panel Indicators:

1 Power-on LED (green)

4 or 8 M.2 link status LEDs (green)

Backplane Connectors:

XJ3 and XJ4 connectors

Optional J1 connector for use in hybrid slots (OEM option)

Power Consumption: 30W max
Temperature Range:

Operating: 0° to 55° C

Non-operating: -40° to 85° C

Relative Humidity: 10 to 90% non-condensing

Designed to Meet:

FCC Part 15 Subpart B, Class A



EN55022, Class A




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