Use the Navionics Multicard Chart Reader in conjuntion with your RayTech RNS 6.1 or RayTech Planner Software to read your Gold, Gold+, Platinum or Hot Maps Premium charts on your PC. Use the reader in conjunction with your own SanDisk CompactFlash memory card to transfer waypoint and route data between your PC and Navionics CompactFlash compatible navigation systems like the A-Series, C-Series, E-Series, Raychart 400, Raychart 435 and Raychart 435i.