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DM-4M.2-3U Storage Unit

  • Capacity up to 15.2 TB (up to 4 PCI Express M.2 SSDs)
  • Host Interface PCI Express x8 Gen3 (8GB/s)
  • Sequential read: 7.1 GB/s
  • Sequential write: 7.1 GB/s
  • NVME SSD devices
  • Compatible with latest Windows operating systems
  • Requires only 1 open slot (4HP)
  • Software RAID capable
  • Combine multiple units for additional storage capacity

The Big River™ DM-4M.2-3U PXI Express storage unit provides up to 15.2 TB of NVME SSD storage in a single PXI Express slot. The DM-4M.2 has a PCI Express Gen3 x8 host interface (up to 8GB/s). With the latest NVME SSD storage, the board delivers high speed data rates for sequential writes of 7.1 GB/s and for sequential reads of 7.1 GB/s in Gen3 PXI Express based systems.

The single slot design of the DM-4M.2 increases the availability of valuable chassis slots when compared to other solutions and allows for maximum storage flexibility. The DM-4M.2 complies with PCIe Gen3 protocol standards and uses industry standard NVME SSD storage devices. The DM-4M.2 operates under Windows 7, 8.1, and 10, and can utilize the software RAID feature of Windows to combine up to 4 devices on the board into a single addressable device.

Maximum Capacity

15.2 TB

Host Interface

PCI Express x8 Gen3 (8GB/s)

Number of Devices

Up to 4

Drive Type

NVME SSD (solid state flash)


6.1875" (D) x 0.787" (W) x 5.0" (H)


< 1lb (0.5kg)

Sequential Read

7.1 GB/s*

Sequential Write

7.1 GB/s*

Power (typical)**

Idle: 15.84W
Write: 32.13W at 3.25GB/s
Read: 25.85W at 3.41GB/s