WD upgrades NAS-friendly Red drives with 2.5-inch versions and 4TB desktop model

If you're looking for hard drives built to withstand the rigors of network-attached storage, Western Digital has a treat in store for you. The company just expanded its Red line of NAS-ready drives to include 2.5-inch models in 750GB and 1TB capacities; both disks fit into smaller enclosures while maintaining the Red series' power and speed optimizations for always-on media servers. WD is offering a few perks for desktop users, too. The existing 3.5-inch range now includes a high-capacity 4TB drive, and every new Red model ships with NASware 2.0 technology that should improve reliability. All three Red variants are shipping today; the compact 750GB and 1TB disks respectively sell for $79 and $99, while the 4TB behemoth costs $229.