product information : hewlett packard pavilion a6730a intel e2220 2gb 320 vistahm+22" hp pavilion a6730a intel e2220 2gb 320 vistahm+22" intel dual core e2220 2.4ghz 2gb 320gb 7200 dvdrw sm dl ls vista home premium plus v220 22" wide lcd monitor proc : intel p dual core proc e2220, 2.4ghz, 1mb l2 cache, 800mhz fsb memory : 2048mb pc2-6400/800mhz ddr2 expandable upto 4gb with discard storage : 320 gb sata hard drives at 7200rpm; chipset : nforce 630i optical drive : supermulti sata drive with light scribe tech, dl (8.5gb) comm : intg 10/100 baset nw i/face, wireless 802.11 b/g lan drive bays : total - external - 2 x 5.25", 2 x 3.5"; internal - 2 x 3.5" graphics : ati radeon hd 3450 pci-express graphics card with dvi 256mb dedicated graphics memory audio : intg intel high definition audio, 7.1 surround sound ready ports : 1 x 1394, 6 x usb 2.0 (2 front, 4 rear), 2 x ps/2, line-in, line-out, mic-in, side spkr l/r, rear spkr l/r, central/subwoofer, spdif-in, spdif-out, 10/100 lan, microphone, headphone os : win vista home premium; card reader : 15-in-1 digital media reade slots : total - 1 x pci express (x16), 2 x pci express (x1), 1 x pci keyboard : hp deluxe low profile multimedia keyboard mouse : hp optical, 2-button ps2 scroller mouse cpx0221 hp v220 22" wide lcd flat panel monitor pavilion display : 22 inch tft, lcd, active matrix, wsxga+; res : 1680 x 1050 brightness : 300 cd/m2 (typ); contrast ratio : 800:1 (typ) viewing angle(h/v): 170/160deg;sound: 2 x intg stereo speaker(2w/channel) interface : video input signal : analog (15-pin mini d-sub vga)