A pair of classic 1×40 breakaway male headers with blue insulators. Perfect for prototyping, module pin-outs, and finishing your boards cleanly. Snap to any length with side cutters—done. Highlights Standard 2.54 mm (0.1") pitch 40 pins/row, straight male, breakaway Blue color for quick visual grouping Breadboard & perfboard friendly Easy to cut to size; great for Arduino/RP2040/ESP/STM32 modules Specs Property Value Format 1×40 straight male header (breakaway) Pitch 2.54 mm (0.1") Pin Count 40 per strip Color Blue (insulator) Compatibility Breadboard, perfboard, most 2.54 mm PCBs Use Case Module headers, shields, adapters, general prototyping What’s in the Pack 2× 1×40 straight male header strips (blue) Notes Snip to length with flush cutters; lightly file edges if needed. For stacking/female headers, pair with 1×40 female headers (2.54 mm).