Dell OptiPlex GX280 Intel Pentium 4 3000 MHz 40Gig Serial ATA HDD 512mb DDR2 Memory DVD ROM Genuine Windows XP Professional Edition + 17" Flat Panel LCD Monitor Desktop PC Computer Professionally Refurbished by a Microsoft Authorized Refurbisher Processor - Intel Pentium 4 3000 MHz || Memory Installed - 512mb DDR2 &gt; Upgradeable to 4096MB Hard Drive - 40Gig Serial ATA || Optical Drive - DVD ROM || Monitor - 17" Flat Panel LCD Internet Connection(s)  The installed 10/100/1000 internal Ethernet port will allow a high speed wired connection. An USB wireless card (Sold Separately) can be added to allow wireless internet access Software Installed - NEW Windows XP Professional Edition, along with word document & spreadsheet applications, electronic user's guide, CD/ DVD burning software, and virus protection (Buy from a Microsoft Authorized Refurbisher and know all software is Genuine) Whats in the Box? - REFURBISHED Dell OptiPlex GX280 with NEW pre installed software, power cord, keyboard and mouse, restore CD, software registration instructions, 17" LCD, and a 60 day Warranty