USED: Dell Optiplex GX620 Tower Computer - 40g HDD, 2g RAM, Windows XP Professional x32, keyboard and mouse - Walmart.com
Dell Optiplex GX620 SFF No Os No Hdd Pentium 4 2.80ghz 512 MB Ram Dvd Floppy | eBay
Best Buy: CMS 2GB (2x1GB) RAM Memory Compatible with Dell OptiPlex GX620 DT / MT / SFF Desktop CM128645300DIMMX2001
OFFTEK 512MB Replacement Memory RAM Upgrade for Dell OptiPlex GX620 Series (Desktop Mini-Tower and Small Form Factor) (DDR2-4200 - Non-ECC) Desktop Memory at Amazon.com
Dell Optiplex GX620 MT Intel Pentium 4 3GHz 2GB RAM No HDD No OS | eBay
Used: Optiplex GX620 Ultra Small Form Factor - 80GB HDD, 2GB Ram, DVD-Rom, 17" LCD Monitor, Windows 7 Professional - Walmart.com
Dell OptiPlex GX620 | The Computer Exchange Shop
Used: Optiplex GX620 Small Form Factor - 400GB HDD, 2GB Ram, DVD-Rom, Windows 7 Professional - Walmart.com
CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex Gx620 Dt/Mt/Sff - A88 at Amazon.com