# Pin Header 2x05

The 2x05 (10-pin) dual-row pin header at 2.54mm pitch is the standard connector for ARM JTAG/SWD debugging interfaces (the Cortex Debug connector), AVR ISP programming, and 10-pin ribbon cable connections. Compatible with IDC connectors for flat ribbon cables, making it ideal for inter-board communication in prototypes and production systems. Also used as generic 10-pin expansion headers on development boards. The shrouded variant (with key) prevents reversed cable insertion.