hp dc7900 sff 85% ps e7400 2gb 160gb dvdrw xpp+19" small form factor vista business with xppro installed including downgrade media plus l1910 19" lcd monitor proc : intel core 2 duo proc e7400, 2.80 ghz, 3mb l2 cache, 1066 mhz fsb memory : 2gb (2 x 1gb) pc2-6400 ddr2 800 sdram; mem slots: 4 dimm storage : 160 gb sata 3.0gb/s 7200 rpm hard disk drive optical drives : sata dvd+/-rw 16x supermulti lightscribe drive bays : 1 x int 3.5 inch, 1 x ext 5.25 inch, 1 x ext 3.5 inch chipset : intel q45 express; form factor : small form factor os : win vista business with downgrade to win xp professional comm : integrated intel 82567lm gigabit network connection graphics : intel graphics media accelerator 4500 integrated graphic audio : integrated hd audio with adi1884a codec slot : 1 x low-profile pci, 2 x low-profile pci express x16, 1 x low-profile pci express x1 ports : rear: 6 x usb 2.0, 1 x std ser port, 2 x ps/2, 1 x rj-45 1 x vga, 1 x display port, audio in/out; front: 2 x usb 2.0, headphone and microphone; power : active pfc (85% high efficiency) cpx1910 hp l1910 19" lcd monitor display size : 19 inches diagonal display technology : active matrix tft (thin film transistor) brightness : 300 nits; contrast ratio : 800:1 viewing angle(h/v) : 160 deg/ 160 deg input signal : 15-pin mini d-sub analog vga connector