The new Guardian 12 TB HDDs come with helium-filled enclosures that provide increased stability and durability for the PRM platters. The Guardian lineup consists of 3 variants: Baracuda Pro Compute is designed for desktops and entry-level attached storage (250 MB/s transfer rates), IronWolf NAS targets 1-8 bay NAS devices (210 MB/s transfer rates), and IronWolf Pro NAS is intended for 1-16 bay creative professional NAS devices (250 MB/s transfer rates). All variants come standard with 256 MB DRAM cache, 7200 RPM and SATA 6 Gbps interface.
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