T-Spec VDB4 4-Position Distribution Block w/Cover [VDB4]VDB4 4 Position Distribution Block with Cover T Spec designed their VDB4 distribution block to handle the high current power distribution for four (4) power sources while keeping your wiring connected securely and looking neat. You can also use this hefty little block to combine the ground wires of four (4) sources to a single grounding point. Solid black nickel plated brass construction ensures reliable power flow, and an impact resistant