The Dell Latitude E6420 is encased in Dell’s business-rugged, MIL-STD 810G-tested Tri-Metal casing an anodized aluminium display lid, reinforced steel in the hinges, and magnesium alloy in the chassis and frame. The notebook also has a zinc alloy latch, a spill resistant keyboard, and an LCD seal to help prevent scratches – Intel Core TM i5 2540M 2.6Ghz Processor - Mobile Intel® QM67 Express Chipset - Intel® HD Graphics 3000 - 14.0 HD (1366x768) Anti-Glare LED - DVD-ROM, DVD+/-RW - 10/100/1000 Gigabit Ethernet - Intel® Centrino® Advanced-N 6205 - Dell Wireless 1501 (802.11 b/g/n 1x1) - High Quality Speakers -Stereo headphone/Microphone combo jack - Integrated, noise reducing array microphones - Network connector (RJ-45) - USB 2.0 (4) – 1 USB/eSATA combo - Stereo headphone/Microphone combo jack - Memory card reader, 54 mm ExpressCard - Docking Connector, VGA, HDMI - 1 Full and 2 Half Mini Card Slots - SmartCard Reader, - USB 3.0 Module option via optical bay