ThinkCentre M Series all-in-ones combine enhanced user experience, uncompromised computing power, and long-term stability, coupled with greater space-saving and energy-efficient features. Ideal for crowded work areas, ThinkCentre M Series all-in-ones integrate the monitor with the central PC unit, giving you more room to work. Processor: 1 x Intel Core i3 (3rd Gen) 3220 / 3.3 GHz ( Dual-Core ) Processor Socket: LGA1155 Socket Processor Main Features: Intel Extended Memory 64 Technology Cache Memory: 3 MB Cache Per Processor: 3 MB RAM: 4 GB (installed) / 16 GB (max) - DDR3 SDRAM - 1600 MHz - PC3-12800 Storage Controller: SATA ( SATA-600 ) Hard Drive: 1 x 500 GB - SATA-600 Optical Storage: DVD-Writer Card Reader: 11 in 1 Monitor: 23'' - LED - 1920 x 1080 ( Full HD ) - 16:9 Graphics Controller: Intel HD Graphics 2500 Camera: Integrated - 2 Megapixel Audio Output: Integrated - stereo Networking: Gigabit LAN, 802.11b, 802.11g, 802.11n, Bluetooth 4.0 Power: AC 120/230 V ( 50/60 Hz )... More