Gigaset PC-Card 54Mbit/s. Data transfer rate (max): 54 Mbit/s. Spread spectrum method: DSSS. Operating temperature range (T-T): 0 - 45 °C, Operating relative humidity range: 5 - 80 %. Minimum system requirements: Windows 98, 98SE, ME, 2000, XP, Outdoor range: 150 m, Indoor range: 30 m