The Astrotek 3m RS232 Null Modem Cable is a reliable and high-quality serial cable featuring DB9 female connectors on both ends. Designed for direct data transfer between two DTE (Data Terminal Equipment) devices such as computers, terminals, or printers, this fully molded cable is ideal for crossover communication without requiring modems. It supports the null-modem wiring scheme to facilitate bidirectional communication between devices that are not typically designed to talk directly.

Key Uses:

• Data transfer between two PCs using software like Windows Direct Cable Connection or LapLink


• Firmware updates for satellite and cable receivers (Dreambox, Technomate, Humax, EchoStar, Manhattan, and others)

• 3 meters in length for flexible connection setups


• DB9 female connectors with thumb screws ensure secure, stable connections


• Fully molded connectors with strain relief enhance durability and prevent cable damage


• Shielded cable with 7 conductors and 30AWG copper wiring for optimal signal integrity


• Compliant with RoHS standards for environmental safety