SFF-SIG (Small Form Factor Special Interest Group) is a Standards family primarily focused on the development of modular embedded computers and controllers.

Many SFF-SIG specifications utilize proven interfaces such as PCI Express® and USB when defining single-board systems and COM (computer-on-module) form factors.

SUMIT

SUMIT is an electromechanical connectorization specification that enables all common serial and legacy chipset expansion busses for next generation products. It is a stackable, I/O-centric, serial expansion approach that is independent of any particular board form factor. It supports PCIe, USB, LPC, SMBus, and ExpressCard signals on a single high-speed connector.

Samtec's Q2™ connectors are compliant to the SUMIT standard.

  • ASP-129637-01 – QMS Series: Male connector for 15.24 mm stack height
  • ASP-129646-01 – QFS Series: Female connector for 15.24 mm stack height
  • ASP-142781-01 – QMS Series: Male connector for 22 mm stack height

Samtec also offers precision machined standoffs to limit the impact of tolerance stack up issues in embedded applications.

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Samtec offers one of the industry’s largest and most flexible lines of two-piece, pin-and-socket board-stacking interconnects. To say it another way, we have more ways to stack two or more boards together than any other connector company.  Also, you can specify a custom stack hei...
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