Low Profile Mezzanine Module for CompactPCI® Serial CPU Cards Dual M.2 NVMe SSD Storage PCI Express up to Gen 4®

Available as a mezzanine add-on expansion board e.g. to several CompactPCI® Serial and CompactPCI® PlusIO CPU carrier cards, the S48-SSD provides a mass storage solution, by means of one or two M.2 NVMe SSD modules.
For optimum throughput both M.2 sockets can be populated with PCIe® x4 NVMe type SSDs. The S48-SSD accommodates M.2 modules of variable size, starting at 22mm x 30mm (2230) up to 22mm x 80mm (2280), fixed by screw lock. As an option, the S48-SSD is available with a Type-C front panel connector, suitable also for the DisplayPort alternate mode.
The S48-SSD connects to the mezzanine expansion connectors HSE1 and HSE2 of the CPU carrier board, maintaining the 4HP (20.32mm) total assembly. Latest EKF CPU boards establish a PCIe® Gen4 link via HSE1. The associated M.2 socket therefore can be used for a Gen4 SSD.

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Ordering Information

  • Mezzanine module
  • stack height 10.0mm (low profile)
  • 2x M.2 PCIe x4 (NVMe)
  • add-on for HSE1/HSE2 mezzanine connector based CPU Suitable for M.2 S1-S5 / D1-D4


  • Low profile mezzanine module for EKF CompactPCI® Serial and CompactPCI® PlusIO CPU boards
  • Proprietary size 84.3mm x 95mm
  • Fits basically into the 4HP (20.32mm) envelope of the CPU carrier board
  • Typically delivered as a ready to use assembly unit (including CPU card)
  • Mounting position right (on top of a CPU board)

Simplified Block Diagram

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