These little cables are handy when programming or debugging a tiny board that uses 10-pin 1.27mm (0.05") pitch SWD programming connectors. We see these connectors often on ARM Cortex dev kits, and a spare in the ARM-dev box is useful.
One cable per order. The ribbon cable is 0.06mm/0.025" pitch and..
This adapter board is designed to make it easier to use ARM dev boards that use slimmer 2x5 (0.05"/1.27mm pitch) SWD cables for programming. It's helpful for using products like the JTAGulator, STLink or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector, often C..