Fusion Finish with Midnight Breeze. 4000 mAh (6 cell) Lithium Ion battery pack. Genuine Windows 7 Home Premium 64-bit, AMD Athlon II Dual-Core Mobile Processor M500 2.2GHz, 1MB L2 Cache, 3.6GT/s ATI Radeon 4100 Graphics with dynamically allocated shared graphics memory, 4GB DDR2 (max 8GB), 320GB (5400 RPM) Serial ATA hard disk drive, DVD SuperMulti drive supporting 11 formats Maximum speed and compatibility: CD-ROM (24x), CD-R (24x), CD-RW (24x), DVD-ROM (8x), DVD-R (Single Layer, (8x)), DVD-R (Double Layer, (6x)), DVD-RW (6x), DVD+R (Single Layer, (8x)), DVD+R (Double Layer, (6x)), DVD+RW (8x), DVDRAM (5x). 15.6" diagonal widescreen LED Backlit Display TruBrite TFT LCD display at 1366x768 native resolution (HD) Native support for 720p content. Built-in stereo speakers. Webcam and microphone,10/100 Ethernet Realtek 802.11b/g wireless LAN, Modem. Ports - Video RGB (monitor) output port, Audio - Microphone input port Headphone output port Data - 3 USB v2.0 ports,(2 x USB v2.0 ports 1 x eSATA/USB), port RJ-45 LAN port, RJ-11 modem port. Expandability - 2 main memory slots. Both slots may be occupied. Memory Card Reader - Secure Digital, Secure Digital High Capacity, Mini SD Card, Micro SD Card, Memory Stick, Memory Stick PRO, MultiMedia Card [shared slot]. Microsoft Works 9. Environmental Specifications- This product is RoHS compatible, Energy Star 5.0 Qualified, EPEAT Gold Compliant