Cable-A for connection to Nikon D5, D850, D810/D810A, D800/D800E, D500, D4, D3-series, D700, D300-series, D2X, D2XS, D2HS, D200.
Cable-A is for Solmeta Geotagger N1/N2/Pro, if you are using Geotagger N3, Cable-A is not compatible.

One Cable-A.