Features: DB9 serial cable, 9-pin RS232 crossover data cable, 0.5m-30m 11 different lengths to choose from. There are three types of interfaces to choose from: male to male, female to female, and male to female, to meet different needs. Gold plated pin, resistant to oxidation and corrosion, metal shell protections, long time use. 28AWG, double-layer shielding, stable high-speed transmission. Suitable for use in computers, printers, scanners, industrial instrument and more. The male head is pin, the female head is hole, insert and play, easy to connect. Specifications: Material: PVC Type: female to female, male to male, male to female(optional) Length: 50cm, 1m, 1.5m, 2m, 3.0m, 5m, 10m, 15m, 20m, 25m, 30m(optional) Size: about 50cm/19.6", 1m/3.28ft, 1.5m/4.92ft, 2m/6.56ft, 3.0m/9.84ft, 5m/16.4ft, 10m/32.8ft, 15m/49.2ft, 20m/65.60ft, 25m/82ft, 30m/98.4ft Package Includes: 1Pc DB9 RS232 Serial Port Crossover Connection Data Cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.