Plug A: 6 pin female
Plug B: USB
Fit: Topcon ES/ OS/ PS Sokkia SX/ CX/ DX Series Total Station, such as ES-602G/ES-605G/OS-602G, CX 101 102 103 105 107 etc.
Model: DOC210
Length: 1.8 Meters
Here is link to DB9 RS232 Serial data cable for Topcon Sokkia.