Features: RJ45 8P8C male to DB9 RS232 male/female serial port debugging cable, switches routers control cable. There are 6 lengths to choose from, meeting different needs. Multilayer shielding, fast speed transmission. No driver required, plug and play. Stable performance, wear-resistant. Environmentally friendly PVC outer cover, flexible, resistant to bending and tensile pulling, not easy to break. Widely applicable, suitable for communication engineering wiring, telephone communication connections, etc. Specifications: Material: PVC Type: to DB9 female, to DB9 male (optional) Length: 50cm, 1m, 1.5m, 2m, 3.0m, 5m (optional) Size: about 50cm/19.6", 1m/3.28ft, 1.5m/4.92ft, 2m/6.56ft, 3.0m/9.84ft, 5m/16.4ft Package Includes: 1 Pc RJ45 to DB9 Serial Port Extension Cable Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolutions.