Below is a list of standard features provided by the NA-1400 as reported by Newisys in various webpages and documents. Basically, your standard marketing blabla.

• 640 GB, 1.0 TB, 1.6 TB and 2.0 TB models (and an barebone model without harddisks)
• Four hot-swap SATA I high-capacity disk drives
• Intel® xScale® processor with Linux®-based operating system for reliability and compatibility
• Print server (USB).
• External USB disk.
• Access control list.
• File sharing.
• System monitoring and reporting.
• Web-based user interface.
• Linux®-based operating system with user-friendly GUI for installation and management activities.
• Journaling file system.
• Two USB ports on the front panel for easy connection with digital media devices.
• Flexible host connection via GigE RJ45 Ethernet and/or USB port.
• Two GigE RJ45 Ethernet ports on the rear panel for direct-attach or Ethernet-based host connection.
• Locking front bezel protects against unwanted hot-plug disk removal and attach point on rear panel accommodates optional Kensington style security devices.
• Supports the following network protocols: SMB/CIFS (Windows) and FTP.
• Available in English, Japanese, French, German, Traditional and Simplified Chinese versions.
• Software RAID levels 0, 1 and 5 available, with RAID management tools.
• User & Group management in Local (with ApplianceView) or Native (using Active Directory Services) or Mixed (using a Primary Domain Controller) security modes.
• Folders & Sharing management with Access Control Lists.
• Large Network Support.
• WINS Server service available.
• Wizard based installer for easy server setup.
• Lower peak power requirements by using a staggered HDD spin-up implementation.

Below is a list of optional features. Don’t know what Newisys means by this, but it could mean you can buy this seperately.

• Win2000 active directory service.