This is a RTK base station extension cable.  The cable is 10 meters long.  This has a female round 2-pin plug to a male grey square plug 2-pin.

Part Number: C.P.XS.000013000

Previous Part Numbers: D.015.SZ0172

Compatible With: Mammotion LUBA 1/Mammotion LUBA 2/Mammotion LUBA 2X AWD