HP Business 15.6" ProBook 450 G2 L8E17UT Laptop PC: Platform: PC Primary Color: Black Processor Brand: Intel Processor Type: Intel Core i5-5200U Dual-Core Processor Processor Speed: 2.20 GHz, with a Max Turbo Speed of 2.70 GHz System Ram: 4 GB Maximum Memory Expansion: 16 GB, SO DIMM 204-pin, 1600 MHz / PC3-12800 Hard Drive Size: 500 GB Laptop Screen Size: 15.6 inch Screen Type: LED Backlight, HD Display Resolution: 1366 x 768 Graphics Card: Intel HD Graphics 5500 Multi Media Drive: DVD Writer Card Reader Type: 3-in-1 card reader 1 x (SD Memory Card), 1 x (SDHC), 1 x (SDXC) Battery Type: Lithium Ion Network Connection: 10/100/1000 Gigabit Ethernet & 802.11ac/a/b/g/n Wireless LAN Connector Type: 1 x DC-in, 1 x Ethernet, 1 x HDMI, 1 x Headphone/Microphone, 2 x USB 2.0, 2 x USB 3.0, 1 x VGA Operating System: Windows 7 Accessories Included: Power Cord , Battery Bus Speed: 2500MHz Model No.: L8E17UT#ABA