HP DC7900 Intel Core 2 Duo 3000 MHz 400Gig Serial ATA HDD 4096mb DDR2 Memory DVD ROM Genuine Windows 7 Professional 32 Bit Desktop PC Computer Professionally Refurbished by a Microsoft Authorized Refurbisher Processor - Intel Core 2 Duo 3000 MHz || Memory Installed - 4096mb DDR2 &gt; Upgradeable to 8192MB Hard Drive - 400Gig Serial ATA || Optical Drive - DVD ROM 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 7 Professional 32 Bit, word document & spreadsheet applications, virus protection along with a Recovery Partition installed on the hard drive for easy reinstallation. Buy from a Microsoft Authorized Refurbisher and know all software is Genuine!! What's in the Box? - REFURBISHED HP DC7900 with NEW pre installed software as well as a recovery partition installed on the hard drive, Original Microsoft installation disk, power cord, New USB keyboard and mouse, software registration instructions / recoveryinstructions, and a 60 day Warranty