Price: $760 and up
Available space: 2.88Tbyte
Pros: Includes 10 licenses of backup software, TeraSearch, print server, FTP server, Time Machine support, virus scanning.
Cons: No device content backup support, slightly more bulky than others.
Available space: 2.71Tbyte
Pros: Best information display, unlimited back software licenses, text search for stored files.
Cons: Power brick
Price: $875 and up
Available storage: 1.3Tbyte
Pros: Five-year warranty, device backup via rsync and secure rsync.
Cons: 2Tbyte unit costs as much as most competitors' 4Tbyte unit
Price: $500 and up
Available storage: 2.68Tbytes
Pros: Lowest cost per terabyte of usable storage.
Cons: No information screen, only one Ethernet port.
Price: $700 and up
Available storage: 2.7Tbytes
Pros: Bare metal restore software included, Wiki software for internal use.
Available storage: 3.6Tbytes
Pros: Two eSATA ports, Apple-type design
Cons: System only backs up to attached USB or eSATA drives, power brick.
Price: $825 and up
Available storage: 2.95Tbytes
Pros: Most available storage of 4Tbyte devices.
Cons: No information screen, need to configure access to default volumes for all users.
Price: $899 without drives; resellers set loaded price
Available storage: 2TB model using 4 700GB drives, 2.06TB available
Pros: Best admin utility, above average password security, Web server and app software included
Cons: One-year warranty