Seagate's Latest Desktop HDD Has 1.5TB Capacity

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Seagate announced three new consumer-level hard drives today, which it claims are the "industry's first 1.5-terabyte desktop and half-terabyte notebook hard drives." The company claims that it is able to greatly increase the areal density of its drive substrates by utilizing perpendicular magnetic recording (PMR) technology. Wikipedia states that PMR is "capable of delivering more than triple the storage density of traditional longitudinal recording."

Seagate's latest desktop-class hard drive, the Barracuda 7200.11, will be available in a 1.5TB capacity starting in August. The 3.5-inch drive is made up of four 375GB platters and has a 7,200-rpm rotational speed. It has a 3Gb/second SATA interface, or 1.5Gb/second using Native Command Queuing (NCQ). Seagate also claims that the new 1.5TB drive supports a sustained data rate of up to 120MB/second. This represents a slight improvement in performance over the existing drives in Seagate's Barracuda 7200.11 series, which have stated sustained data rates between 105 and 115MB/second--with the 1TB Barracuda 7200.11 on the slow end of that scale at 105MB/second. While many of the existing drives in the 7200.11 series have both 16MB and 32MB cache versions, the 1.5TB will likely only be available with a 32MB cache--similar to its 1TB sibling. Pricing has yet be announced.

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credit :: Wikipedia