Anti interference: DB25 Extend Serial Cable with adopts 25C* 26awg tinned copper core, aluminum foil shield and metal braided screen to effectively prevent external signal interference. | DB25 wire sequence: 1-black, 2-brown, 3-red, 4-orange, 5-yellow, 6-green, 7-blue, 8-purple, 9-gray 10 white, 11 pink, 12 light green, 13 black white, 14 brown white, 15 orange white, 16 yellow white, 17 green white, 18 blue white, 19 purple white, 20 red black, 21 orange black, 22 yellow black, 23 green black, 24 gray black, 25 Pink Black | Application scope: serial extension cable can be used for automatic control equipment, PDA, modem, PLC, POS, industrial control equipment, cash register, tax control machine, computer, etc | DB25 cable adopts black PVC molded and injection molded shell, which eliminates heavy load strain and makes it strong and reliable.Cable outer diameter: 8.0mm (0.3in) | DB25 male single end cable end is stripped with PVC outer cover 9CM (3.5in),Heat shrinkable tube is sleeved at the fracture of outer quilt