Product Description This adapter converts a multi-pin Kenwood K2 connector to a Kenwood two-pin connector. Compatible with these radio models:Kenwood: TK 190, TK 290, TK 280, TK 380, TK 390, TK 480, TK 481, TK 2140, TK 2180, TK 3140, TK 3180, TK 5210, TK 5220, TK 5310, TK 5320, TK 5400, TK 5410.Kenwood Nexedge: NX200, NX210, NX300, NX320, NX410, NX411.