This is a DB25 solderless male/female breakout connector. It is a RS232 serial DB25 25-pin to 25 position screw terminal block. Every terminal is clearly marked, they can easily be connected to a custom length cable, creating a permanent and durable connection for all serial devices. Specifications? PCB dimensions(L x W): 110 x 70mm Terminal hole diameter: 0.12''/3mm Terminal hole center distance : 5.08mm Wire Range: 22-12AWG Rated Voltage:24V Rated Current:2A Connect Type: Male/Female with nut Material: Copper base and plastic Torque: 0.2Nm (1.7Lb-In.) Screws: Steel, Cr3+ Zn plated Pin header and cage: Gold plated brass Package included: 1 x DB25 breakout board male/female adapter with nut