Lightkiwi R4907 Interconnect Cable Coupler (Female to Female) Interconnect cable coupler to join 2 interconnect cables. Accepts male interconnect cable connector at each end. [Connector Information] 3.5mm (Outer Diameter) x 1.35mm (Inner Diameter) CAUTION: This item is intended to be used with Lightkiwi modular LED under cabinet light panel. Please check the size of connector when used with other products.