Intel® I/O Expansion Modules Hardware Specification for Intel® Server Boards and Intel® Server Systems
Intel® I/O Expansion Modules for Intel® Platforms hardware specification (PDF) 
The Intel® Server Boards support a variety of Intel® I/O Expansion Module options using x4 or x8 PCI Express* Mezzanine connectors on the board. This PDF shows you which boards support modules, and it provides the hardware specifications for:
- Quad Port Intel® I350 GbE I/O Module (AXX4P1GBPWLIOM)
- Dual Port Intel® X540 10GbE I/O Module (AXX10GBTWLIOM and AXX10GBTWLHW)
- Dual Port Intel® X540 10GbE I/O Module (AXX10GBTWLHW2)
- Dual Port Intel® X540 10GbE I/O Module (AXX10GBTWLIOM3 and AXX10GBTWLHW3)
- Dual Port Intel® 82599 10GbE I/O Module (AXX10GBNIAIOM)
- Single Port FDR InfiniBand* ConnectX*-3 I/O Module (AXX1FDRIBIOM)
- Dual Port FDR InfiniBand ConnectX-3 I/O Module (AXX2FDRIBIOM)
Size: 1.18 MB
Date: April 2015
Revision: 1.4
Note: PDF files require Adobe Acrobat Reader*.