Model: HP Compaq Pro 6300 SFF Processor: Intel Core I7-3770 - 3,40Ghz - DMI 5 GT / s - 4 cores - Cache: 8 MB - Socket FCLGA1155 RAM: 16 GB - DDR3 (Max 16 GB) Hard disk: 2000 GB SATO Optical drive : DVD burner Graphics controller: Integrated into the processor - Intel® HD 4000 graphics core Network: Intel 82579LM GbE Gigabit Ethernet + WIFI USB key Operating system: Windows 7 Pro Dimensions: Height: 10 cm // Width: 33.8 cm // Depth: 37.8 cm Weight: 5Kg PORTS: - 6 x Hi-Speed ​​USB (2.0) (4 at the front, 2 at the rear) - 4 x Super-Speed ​​USB (3.0) (at therear) - 2 x PS / 2 - Mouse and Keyboard - 1 x DisplayPort - 1 x Serial RS-232 - D-Sub (DB-9) 9-pin - 1 x VGA - HD D-Sub (HD-15) 15-pin - 1 x Gigabit Ethernet port (RJ45) 10/100 / 1000Mbps - 2 x Input lines (stereo / microphone) - 2 x Output lines (headphone / speaker) SLOTS - 4 x RAM slots (RAM Slot) - 2 x PCI-Express x16 (Low profile) - 1 x PCI-Express (Low profile) - 1 x PCI (Low profile) - 4 x Serial ATA (SATA) Windows 7 Pro operating system installed + Stickers (without CD of installation)