Interface A: RJ9 male; Interface B: RJ9 double female (4P4C standard). Due to the different display and different light, the picture may not show the actual color of the item.
GP1722 Telephone Plug Male to RJ11 Socket Female Crossover Adaptor
Telephone Extension Cable RJ9 Male Plug to RJ9 Dual Female Modular Jack
Telephone Cord RJ9 4P4C To RJ9 Fe Plug Adapter Cable 25cm
RJ9 4P4C Male to 2 Female Connectors Connection Telephone Adapter Extension
Telephone Extension Cable RJ9 Plug to Fe Modular Plug
RJ9 RJ10 to 3.5mm Female Headset Adapter Cable Telephone Converter 10cm
