0
\$\begingroup\$

What is the overhang on pci express connectors for? Is it for a rarely used board latching feature? I am referring to the feature being pointed to in this picture.

PCI Express connector with arrow

\$\endgroup\$

1 Answer 1

1
\$\begingroup\$

Exactly, this feature is for optional fastening of PCIe cards and it's known as retention ridge.

Quoting from the PCI Express® Card Electromechanical Specification (Rev. 2.0):

an optional ridge feature is defined on the top of the connector housing on one side.
This feature can be used to facilitate card retention. A retention clip may be mounted on an add-in card and latched on the ridge.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.