Storage networks become more and more complex. If you need to easily expand storage capacity while providing uninterrupted high-performance data access across your LAN. You may want to consider a NAS (Network Attached Storage) appliance. When budgets are tight and a quick fix is required, a NAS appliance is a low-cost, efficient solution to dodge that network-to-storage logjam. That's why more and more users select NAS architecture as their storage networking.

The DN-503AH-PDC (SATA II NAS Subsystem) is a reliable, cost-effective way to add storage to the network. It comes with 5 drive trays accommodating 3.5" SATA II drives while SCA-II single connector architecture enables true hot swap capability. Built-in Pentium Dual Core CPU, up to 2GB DDR2 SDRAM and four Gigabit Ethernet ports offers high performance NAS platform. Linux based embedded OS design, it can boot without HDD, FDD or CD-ROM to guarantee reliability and quick boot. The DN-503AH-PDC system is managed and configured by Java browser based software, including pre-configure disk capacity, users setting, volume management, quick installed on popular network platform, Multi protocol support, etc... Equipped with H/W RAID to offer fault tolerant data protection. It is a full featured data protection supporting RAID levels 0, 1, 3, 0+1, 5, 6 and JBOD.
System reliability is ensured by an environmental monitoring unit, which tracks the enclosure temperature as well as individual disk temperatures. If any irregularity in these systems occurs, the monitoring unit alerts the administrator.

The DN-503AH-PDC is an SATA II NAS Subsystem with proBackup solution. proBackup provides end users a friendly Java GUI that makes versatile backup functions available to general users. They can easily backup and restore their files by storages, and they do not need to install proprietary software in their machines. It is also simple to setup a proBackup storage for a company or an organization, even for non-IT-pro person.