Use your eTrex geko or Emap GPS with any windows XP pc with USB support. Compatibility: eTrex series not colour versions including the eTrex eTrex Legend eTrex Vista eTrex Venture and the eTrex Summit. Geko series including the Geko 201and the Geko 301. eMap. System Requirements: Requires a personal computer system with USB Universal Serial Bus interface if your system has a 9 pin serial connection RS232 then you can purchase a cable with code 25113.