color=#000000 size=2>HP recommends Microsoft® Windows® XP Professional As light as 3.9lb and as thin as 1.19-inches 12.1-inch TFT XGA display Standard 6-cell Lithium-Ion battery Dual pointing devices Full-size keyboard Floppy and optical drives sold separately (require an advanced port replicator or external MultiBay) One each of the following interfaces: Type I/II PC card, optional Smart Card reader (replaces PC card slot), VGA monitor, S-video out, microphone-in, headphone-in, DC power, RJ-11 (modem), RJ-45 (NIC), ambient light sensor, infrared light, three (3) USB 2.0 (including one powered USB 2.0 port to support HP External MultiBay II), Docking connector, travel battery connector