40 Pin Male to Male Header 2.54 mm

40 Pin Male to Male Header 2.54 mm – Dual Row PCB Connector, 2×20 Pins

The 40 pin male‑to‑male header with standard 2.54 mm pitch offers versatile interconnectivity for electronics projects and PCB designs. This 2×20 pin connector ensures compatibility with Arduino, Raspberry Pi, development boards, prototyping setups, and custom PCBs. Its male‑to‑male format allows for secure stacking or linking of modules, providing reliable signal and power transmission. Built from durable materials with tin‑plated brass contacts and a strong PCB shroud, this header withstands repeated insertion and maintains excellent electrical contact. It supports straight or right‑angle configurations, enabling flexible integration in space‑constrained layouts. A cost‑effective solution when purchased in bulk, the 40 pin header simplifies prototyping and production-level connectivity needs.

Perfect for signal routing, board stacking, breakout beards, and DIY electronics, this header is widely used in educational kits, industrial prototypes, and commercial electronic assemblies. It delivers stable connections in breadboard settings, shield stacking, and cableless wiring—making it a popular component for engineers, educators, and makers.

Key Specs – 40 Pin Male‑to‑Male Header 2.54 mm Header Type: Dual row, male‑to‑male connector Pin Count: 40 pins (2×20) Pitch: 2.54 mm (0.1 inch) Contact Material: Tin‑plated brass Shroud: Plastic PCB shroud, optional right‑angle version Mount Style: Through‑hole (straight or right‑angle) Operating Temperature: –25 °C to +85 °C Applications: Prototyping, Arduino/RPi stacking, PCB interconnects, breakout wiring, industrial electronics Benefits: Durable construction, reliable contact, compatible with standard prototyping tools, bulk availability