Breakaway Male Header 2.54mm : 1×40-Pin, Straight, Double-Sided

From the shop's description

This connector is a single-row, 40-pin, straight male header strip that can be cut or broken into smaller strips. Both sides of the strip are long, allowing for unique connections that cannot be made with standard male header strips. For example, this header can be used as a female-to-male adapter, and both sides are compatible with wire wrap. SPECIFICATION Current: 3A Pitch: 2.54mm No. Of Contacts:40 Contacts Withstanding Voltage: 1000 AC RMS Contact Resistence: 20 Milichms Nox insulation Resistonce: 1000 Megaohms Min. Operation Temperature: ~55°C~+ 105°C Contact: Copper Alloys,Gold Plated