RJ10 female to RJ45 female coupler. Joins an RJ10 plug to an RJ45 plug (straight wired). As the RJ45 connector is 8 way only the centre 4 pins are used as per wiring configuration below. Can be used for various telecom & low voltage applications. Product colour may vary.
Note-RJ10 plugs are also known as RJ9 & RJ22 plugs! RJ10 (4 way, 7mm wide)