HP aims at the top niche of the home server market and hits the spot with the MediaSmart series. This compact box is more than just a drive controller and some connectors. It's powered by an energy efficient Intel Atom 1.6GHz processor with 1GB of DDR2 memory. Windows Home Server operating system helps you easily store, access, share and protecting your digital files. The LX195 features a 640GB SATA drive for expansive storage. If that isn't enough, 4 external USB 2.0 ports and a Gigabeit Ethernet port offer connectivity for external storage devices. It supports both Windows and Mac for added usability! Automatically manage files, back up multiple computers and deliver security protection. Enjoy the functionality home server system with HP MediaSmart LX195! Type: Tower CPU Type: Intel Atom 1.6 GHz Processor 230 Installed Memory Size: 1GB Memory Type: DDR2 Hard Drive (Installed): 640GB, 7200 RPM HDD Interface: SATA Max HDD Capacity: Only limited by the internal hard disk drive capacity and storage added using the four USB 2.0 ports on the back of the product. Internal hard disk drive can be replaced with any internal SATA I or II hard disk drive for increased capacity. LAN Ports: Connects easily to the home network through a built-in Ethernet port. 10/100/1000 (Gigabit) RJ45 Ethernet - Supports both wired and wireless PCs (via a wireless router).