Seagate is adding pressure to rival WD with the release of a NAS HDD lineup. Just like the recently released WD Red series of HDDs, Seagate's HDDs are targeted towards 1- to 5-bay NAS units. The new Seagate NAS HDDs are available in multiple capacity points including a 4TB option. The specific 4TB drive enables the release of home and small to midsize businesses (SMB) NAS systems with up to 20TB of data capacity in a five-bay NAS array.

Through ASWorks, the new HDDS support error correction via customized error recovery controls, power management and vibration tolerance for reliability in a 1- to 5-bay solution. Seagate's NAS HDDs also feature vibration tolerance, they support multiple user-selectable power profiles that can optimize power usage and they remain near-silent for low-noise environments like living rooms or office spaces.

Seagate has a lead over WD in the capacity department. While the WD Red currently tops out at 3TB, Seagate's NAS HDD comes in 2 TB, 3 TB and 4 TB flavors. Average operating power for Seagate's HDDs is 4.3W for the 2TB model and 4.8W for the 3 TB and 4 TB ones.

Pricing is set at $126, $168 and $229 for the 2TB, 3TB and 4TB models respectively.