The Quad SFP28 FMC is an add-on expansion board (FPGA Mezzanine Card) for FPGA and SoC-based development boards. It has four SFP28 module slots, allowing the connection of up to four SFP, SFP+ or SFP28 modules to the carrier development board. The mezzanine card features a jitter-attenuating clock multiplier, supporting Synchronous Ethernet applications, and uses level translators to support a wide range of FPGA I/O voltages from 1.2VDC to 3.3VDC.

Top view

Quad SFP28 FMC top

Bottom view

Quad SFP28 FMC bottom

Application Example

Quad SFP28 FMC with ZCU106


  • 4x SFP28 slots compatible with SFP, SFP+ and SFP28 modules
  • Jitter-attenuating clock multiplier with support for recovered clock and SyncE applications
  • Supports a wide range of I/O voltages (VADJ): 1.2V-3.3V
  • High pin count FMC connector
  • FMC pinout conforms to VITA 57.1 FMC Standard
  • Testpoints to aid debugging
  • Example designs with sources for several development boards
  • Standalone and PetaLinux example designs


The Quad SFP28 FMC is not yet available for purchase, however we are expecting it to be available from the following suppliers by August 2024.

VendorPart namePart number
OpseroQuad SFP28 FMCOP081
Digi-KeyQuad SFP28 FMCOP081

Included with the Quad SFP28 FMC are 2x machine screws for fixing the mezzanine card to the carrier board.