Lenovo ThinkCentre M73 10AY001YUS Tiny Desktop Computer (Intel Core i5-4570T 2.9GHz) Business Black 2.9GHz Intel Core i5-4570T Dual-Core Processor (up to 3.6GHz w/TurboBoost 2.0); Intel HD Graphics 4600 4GB PC3-12800 1600MHz DDR3 SDRAM; 500GB 7200 HDD with 8GB MLC NAND Falsh Memory Intel Centrino Wireless-N 2230 802.11/b/g/n Wi-Fi + Bluetooth combo adapter, 2x2; Gigabit LAN; 2 x USB 3.0; 3 x USB 2.0 USB Keyboard and Optical Mouse; 65 watts AC/DC adapter; Integrated Intel HD Graphics Windows 7 Pro 64 preload w/ Windows 8 Pro 64 RDVD, License