PI DATE : June 2007 * ReadyNAS NV+ RND4425 * 4 x 250GB hot-swap SATA HDD, swap out drives on the fly without powering down the unit * 4 x Serial ATA channels * Compatible with SATA and SATA IIHDD * Hot swappable and lockable trays * 10/100/1000 Ethernet * LCD display * 3 x USB 2.0 ports support USB HDD,Flash drives, Printers, Wless ntwk Adp * 256MB PC2700 DDR-SDREAM SO-DIMM ; Embedded 64MB Flash Memory for OS * Supports Windows, Mac, Linux/UNIX Clients * DHCP server and print server * Multiple volume support for RAID 0, 1, 5 & H/W X-RAID single vol auto Exp * High throughput performance supports multiple HD content streams * Built-in iTunes Server * UPnP AV support for a wide variety of Digital Media Adapters (Such as NETGEAR EVA8000 and EVA700 or XBOX360) * 92mm ball-bearing chassis cooling fan & Fan failure alert * Dimension - 200 H x 132 W x 222 D (mm)