HP takes aim at the top of the home server market and hits it spot on with the MediaSmart series. This compact box is more than just a drive controller and some connectors. It's powered by an extremely energy efficient Intel Celeron 2.0GHz 64-bit processor with 2GB of DDR2 memory. Windows Home Server operating system helps you easily store, access, share and protecting your digital files. The EX485 features 4 hard drive bays for easy expandability. It already includes a large 750GB SATA drive for great storage, and you can add additional hard drives without tools. If that isn't enough, there are 4 external USB 2.0 ports for external storage devices, printers and wireless networking. Or, if you want to go wired, there's a Gigabit Ethernet port. An e-SATA port is provided for high-speed external drives. This gives you redundancy or the ability to attach networked devices. Automatically manage files, back up multiple computers and deliver security protection. You can even set up a personal web address to be used for remote access and by visitors. Enjoy the functionality home server system with HP MediaSmart EX485! Type: Tower CPU Type: Intel Celeron 2.0 Ghz Installed Memory Size: 2GB Memory Type: DDR2 Hard Drive (Installed): 750GB HDD Interface: SATA LAN Ports: 1x Ports Dimensions: 5.5" x 9.8" x 9.2"