For series 175NCP, 200NCP, 2000NCP, 2000 T&B, 1800NC, 1200 Series and 1100NC, RRS, RRD
(black to black, 5mm to 5mm)
IMPORTANT: For the Dogtra 175NCP or 200NCP check your serial number. If the serial number is above 111361, this is the correct splitter cable. However, if the serial number is below 111361 you will need the black to yellow, 5mm to 3mm splitter cable
here.