StarTech.com Straight Through Serial RS232 Cables DB9 M/F - StarTech.com MXT10050CMBK, The StarTech.com MXT10050CMBK 0.5m Serial Extension Cable features 1 x DB9 male connector and 1 x DB9 female connector, providing a high quality extension for your RS232 serial devices, enabling you to position your peripheral devices as needed. The high quality cable shielding helps prevent EMI.Backed by StarTech.com lifetime warranty. StarTech MXT10050CMBK 500mm Black Straight Through Serial Cable - DB9 M/F