Intel® Core™ i5 processor 520M (2.4/2.93GHz, 1066MHz FSB, 3MB L2 Cache), Genuine Windows® 7 Professional (OEM) 32/64bit with Windows® XP Professional media downgrade, 13.3" Widescreen XGA 200 LD TFT Active Matrix LED Backlight Display (1366 x 768), 4GB DDR3 (2GB + 2GB) (1066MHz) expandable to 8GB, 128GB (SSD) SATA, AMT Yes, Intel® Graphics Media Accelerator QM57, DVD SuperMulti Double/Dual Layer, Optical Disc Drive Speed Read: CD-ROM 24x, DVD-ROM 8x. Write: CD-R 24x, CD-RW 4x, DVD-R 8x, DVD-RW 4x, DVD+R 8x, DVD+RW 4x, DVD-RAM 3x, Intel High Definition Audio Sound, Stereo speakers, 65W Worldwide AC Adaptor, ACPI, PnP, VESA, DPMS, DDC, SM BIOS, PCI BIOS Support, Boot Device, TSETUP, 3 Year limited international parts and labour warranty, Intel® 1Gbit TX Ethernet + Active Management Technology (AMT) 6.0, 802.11(a/g/n), V2.1 + EDR (Enhanced Data Rate), 1x PCI Express Card, VGA, HDMI, 3x USB Ports, Bridge Media slot, Webcam, 6 Cell 6200mAh Lithium-Ion battery.