Trust BT120 USB BLUETOOTH ADAPTER. Connectivity technology: Wireless. Data transfer rate (max): 1 Mbit/s. Minimum system requirements: Pentium 200 MMX CPU Free USB port 32 MB of system memory 30 MB free HDD space CD-ROM drive, Dimensions (WxDxH): 85 x 25 x 12 mm, Compatible operating systems: Windows 98SE, ME, 2000, XP