This 500' Neutral Underwater ROV Tether from VideoRay connects their Pro 4, Scout, Scout X3, Explorer, or Explorer X3 underwater ROV to its topside box/control panel. Its modular design allows it to be attached to other tether segments for even greater length. Keep in mind that the depth rating of the Scout and Explorer is 250', so you must be careful not to exceed this depth when using a tether. The Pro 4 has a greater depth rating of 1000'. A steel strain-relief cable, all-copper conductors, and a Kevlar member are built into this neutrally buoyant tether for durability and a breaking strength of 1000 lb.