KEL Corporation, 8800, 40 Way, 2 Row, Straight PCB Header

8800 series PCB mount board to board header connectors with a 1.27mm pitch and a low insertion and withdrawal force. These 8800 series 1.27 mm PCB plugs have a straight beam two-point contact design that assures a reliable electrical connection and a long wiping action on insertion. The housings of these 8800 series board to board header connectors are designed to prevent misinsertion and protect the contacts from damage. An audible click is produced when mating is compete. These 8800 series board to board PCB headers support stacking, horizontal and vertical board to board applications. Versions of these header connectors are available with flanges for screw mounting and PCB hooks to secure the connector during the soldering process.
Part numbers 8810-xxx-xxxx-F have flanges
Part numbers 8811-xxx-xxxx-F have flanges and hooks
These 8800 series PCB board to board header connectors mate with the 8800 series board to board to board socket connectors

Low insertion and withdrawal force
Two-point straight beam contact design for a reliable electrical connection
Long contact wiping action
Housings prevent misinsertion and protect contacts
Audible click indicates complete mationg
Support stacking, vertical and horizontal board to board applications
Versions with flanges and PCB retention hooks available