The G771553 is a 77 ohm twin-axial cable constructed of high quality materials that meet or exceed the requirements for 1553B data bus cable. G771553 is a laser markable version of Military Standard 1553B data bus cable that saves weight and time versus using traditional 1553B cable. Most 1553 data bus applications require identification at regular intervals (e.g. every 2 feet); using traditional 1553B cable and labels requires an investment in label material and installation labor while adding significant weight to the final cable.