ProcessorProcessor: Intel Core Duo T2500 / 2 GHzMulti-Core Technology: Dual-CoreData Bus Speed: 667 MHzFeatures: Enhanced SpeedStep technology, power-optimized processor system bus, Execute Disable Bit capabilityChipset Type: Mobile Intel 945GM ExpressCache memoryType: L2 CacheInstalled Size: 2 MBRamInstalled Size: 512 MB / 4 GB (max)Technology: DDR II SDRAM - 667 MHzForm Factor: SO DIMM 200-pinStorage controllerType: Serial ATAStorageHard Drive: 60 GB - Serial ATA-150 - 5400 rpmCard readerType: Card readerSupported Flash Memory Cards: SD Memory Card, MultiMediaCardDisplayDisplay Type: 12.1" TFT active matrixMax Resolution: 1024 x 768 ( XGA )Widescreen Display: NoColour support: Up to 16.2 million colorsFeatures: Ambient light sensorVideoGraphics Processor / Vendor: Intel GMA 950Video Memory: Dynamic Video Memory Technology 3.0Max Allocated RAM Size: 128 MBAudioAudio Output: Sound cardAudio Codec: AD1981HDCompliant Standards: Sound Blaster ProFeatures: High Definition AudioAudio Input: MicrophoneInput device(s)Type: Keyboard, digitizer, touchpad, pointing stick, digital penTelecomModem: Fax / modem - MDCMax Transfer Rate: 56 KbpsProtocols & Specifications: ITU V.21, Bell 212A, ITU V.22, ITU V.22bis, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, ITU V.17, ITU V.23, ITU V.27ter, Bell 103J, ITU V.8, ITU V.92, ITU T.30, ITU T.4, ITU V.250, ITU V.251, ITU V.80Fax Compatibility: G3 Manufacturer's product descriptionThe versatile HP Compaq tc4400 Tablet PC adapts to the way you work with ultra portable mobility, superb performance, and productivity-enhancing features. Tablet functionality provides the flexibility to work when, where, and how you want. A 12.1-inch 160-degree wide-viewing angle display, active digitizer and specially treated glass provide superior viewing, durability, and a comfortable writing surface.NetworkingNetworking: Network adapter - PCI Express x1Wireless LAN Supported: YesWireless NIC: Intel PRO/Wireless 3945ABGData Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, Bluetooth 2.0 EDRBluetooth Class: Class 2Remote Management Protocol: SNMPCompliant Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3z, IEEE 802.3ab, IEEE 802.1p, IEEE 802.11b, IEEE 802.11a, IEEE 802.3x, IEEE 802.11g, Wi-Fi CERTIFIED, Bluetooth 2.0Expansion / connectivityExpansion Slots Total (Free): * 2 ( 1 ) x memory - SO DIMM 200-pin * 1 ( 1 ) x CardBus - type I/II * 1 ( 1 ) x SD Memory CardInterfaces: * 2 x Hi-Speed USB - 4 PIN USB Type A * 1 x PoweredUSB 2.0 - 4 PIN USB Type A * 1 x display / video - VGA - 15 pin HD D-Sub (HD-15) * 1 x display / video - S-video output * 1 x microphone - input - mini-phone stereo 3.5 mm * 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm * 1 x modem - phone line - RJ-11 * 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 * 1 x infrared - IrDA * 1 x docking / port replicator * 1 x batteryIt is highly recommended to always use the most recent driver version available.Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.