Super Flat Modular Cord 【High Compatibility】 Compatible with a wide range of devices such as telephones, fax machines, modems, and computers. 【Convenient Design】 Ultra-thin 0.5mm, unobtrusive and neat wiring. Compatible with both 6-pin 2-wire and 6-pin 4-wire configurations. This is a new, unused item, but it has been stored for a long time, so please refrain from purchasing if you are concerned.