2.54mm 40針 IDC 排線 母對母 0.3m

I needed a longer cable to reach my breadboard setup, and this 0.3m length sits perfectly without excess slack. The female connectors fit snugly onto the pin headers, no wobble at all.

Crimped these onto my JTAG programmer and the pin alignment is spot on, no bent connectors or misaligned rows. The 40-pin female connectors grip snugly on the header, and the cable lays flat enough for my bench setup.

Used it to hook up my JTAG programmer to a dev board and the 40 pins lined up perfectly with the header, no fiddling or bent pins. The 0.3m length is just right for keeping things tidy on the bench without excess slack getting in the way.