Mares IRIS USB Interface for Nemo Steel/Titanium, M2 RGBM The Mares IRIS Infra-Red Interface System allows you to easily download data from your dive computer to a PC Review and manage your dive data, supplementing it with additional information for a complete dive log. Also features a dive simulator, which is a useful diver training tool and analysis instrument. For use with the Mares Nemo Excel, Nemo, M2 RGBM, MC2 RGBM, M1, M1 RGBM, Airlab, Darwin and Darwin Air only. Please allow an additional five shipping days for Mares items as they are very popular