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The Momentus 7200.2 delivers up to 160GB of capacity using perpendicular recording technology and combines a Serial ATA 3.0 Gbit/second interface with 7200 RPM spin speed. The hard drive is also offered with an optional free-fall sensor to help prevent drive damage and data loss upon impact if a lapto[ is dropped. The sensor works by detecting any changes in acceleration equal to the force of gravity, then parking the head off the disc to prevent contact with the platter in a free fall of as little as inch inches.
The Momentus 7200.2, Seagate's second-generation 7200-RPM notebook drive, is designed for a wide range of systems including mainstream notebooks, workstations, RAID enclosures, and small form factor desktop computers. It's offered in 80GB, 100GB, 120GB and 160GB capacities. The entire Momentus series is built tough to withstand up to 900 Gs of non-operating shock and 350 Gs of operating shock.