The RND4000 from Netgear is a 4-bay network storage enclosure that will grow as your needs do. The 4 hot swappable bays support SATA and SATA II hard drives. Add capacity beyond the hard drives with the 3 USB 2.0 ports, or, attach a printer and let the print server handle your network's print jobs. A 256MB memory module speeds up operations. There are indicator LEDs and a 2 line LCD display to let you monitor status. There is built in support for RAID levels 0, 1 and 5. Take advantage of X-RAID technology to future-proof your system. Add drives as necessary and swap out smaller drives for larger as your needs increase. X-RAID will handle it all automatically; no more buying a second enclosure full of drives and transferring all of the data manually. The ReadyNAS NV+ is also a fully featured media server with UPnP AV and SlimServer support. It's also Windows MCE compatible so all of your PCs on the network can access the media files from a central location. HTTP/S and FTP/S support lets you acc Form Factor: Desktop Port RJ-45: 1 x 10/100/1000M Port USB: 3 x USB2.0 HDD Interface: 4 x SATA Operating System: Supports Windows, Mac, Linux/UNIX Clients Processor: IT3107 Management: Performance options Device status Email alerts and event logs SNMP Default/ Max. Memory: 256MB PC2700 DDR-SDREAM SO-DIMM Embedded 64MB Flash Memory for OS