• 3-wire (TX, RX, and GND) null modem extension cable for COM port connection. • DB9 male to female connectors with gold-plated pins for increased corrosion resistance. • Crossover wiring between TX and RX conductors designed for stable data transmission. • Standard shielding with aluminum foil for protection against interference. • Includes screws at each end to ensure a solid and reliable connection. • Compatible with RS232 devices such as scanners, modems, printers, PLCs, and test equipment. • Cable length of 3 meters with a diameter of 6 mm.