... a 9 pin serial port to a 25 pinAbout our factory:We specialize in the manufacture of all kinds of USB adapters and ... cables, VGA cables, USB cables,1394 cables, AV cables, USB connectors, DB connectors, RCA jacks, hooks, etc. Our Serial Cable Adapter as well ... you the latest competitive price within the first fastest time. DB9 to DB25 Serial Cable Adapter-F/M