Tripp Lite's serial adapter has gold plated connectors and will convert a DB9 male connector into a DB25 male connector. Lets a serial device with a DB9 connector attach to a PC with a DB25 port. PVC premold encapsulates individual conductors to ensure electrical isolation and relieve stress. 28 AWG stranded tinned copper conductors are individually insulated in polypropylene. This minimizes cross talk and ensures high-speed, error-free transmission. Tripp Lite warrants this product to be free from defects in materials and workmanship for life. Clamshell retail packaging.