S400, Intel i5-3320M 2.6GHz Processor, 3MB Cache, 4GB DDR3 RAM, 500GB HDD, 800 NITs Multi-Touch Touchscreen Display, Mechanical Backlit Keyboard, SuperMulti DVD, 802.11N Wireless, Bluetooth, PCMCIA Type II+Express Card 54/34, Smart Card, 3-1 Card Reader, TPM, Low Temp -20C, 4G LTE for AT & T, Bottom/dock dual RF pass-thru (WWAN/GPS), Fingerprint, GPS, WIN7 Pro, 3 Year Warranty