TOS (Toslink) is the premium Straight Wire offering for the standard optical connection used for many DVD, Cable/Sat Box/ Game Consoles and other enabled components. The thin transmission fiber is encapsulated in woven bundle for structural strength and then covered with a durable yet flexible black outer jacket. Multiple tests are performed during manufacture to confirm the cable will enable accurate transmission without failure. The gold plated knurled barrels allow for a firm grip for insertion and removal.