Electrical Supplies
40 Pins Male Female Pin Header Single Row 2.54mm Gold Plated Breakable Extension Connector Strip for Arduino PCB Socket Board
40 Pins Male Female Pin Header Single Row 2.54mm Gold Plated Breakable Extension Connector Strip for Arduino PCB Socket Board
https://www.bizrate.co.uk/electricalsupplies/40-pins-male-female-pin-oid25998827787.html