

There are a handful of companies who manufacture hard drives: Hitachi, Samsung, Western Digital, Seagate, and Toshiba (who just this year bought Fujitsu). In a testament to the benefits of a competitive marketplace, they are always attempting to leapfrog one another by offering bigger, faster drives. Until recently, your top option for laptops was either 500 GB at the standard rotational speed of 5400 RPM, or 320 GB at the high-performance speed of 7200 RPM. Seagate just pulled ahead of the pack by being the first to offer both in one: their Momentus 7200.4 is a 500GB, 7200 RPM drive, available in a standard and a “freefall protection” model (though note that all laptop Macs from the past few years offer their own freefall protection for any drive). I’m totally getting one.