Seagate has just wow'ed the masses by reaching a milestone we didn't expect to see for quite some time yet; the company has just announced a whopping 1.5TB desktop hard disk under its existing Barracuda 7200.11 Series.

They have accomplished this by cramming four 375GB platters into the usual 3.5" desktop form factor. Other specs are fairly standardized for todays drives; 7200RPM spindle speed, 300MB/sec SATA-II interface and NCQ support. Cache size was not not mentioned in the PR but it's expected the drive would carry the same 32MB cache as its smaller 1TB brother.

Not forgetting about the latest in storage for notebooks, Seagate has also launched two new 2.5" Momentus Series drives. The Momentus 5400.6 range uses a 5400RPM spindle speed, 8MB of cache and is available in capacities of 120 to 500GB. The faster Momentus 7200.4 Series spins at 7200RPM, has 16MB of cache and comes in sizes from 250 to 500GB.

The new 1.5TB monster is expected to ship at the beginning of August whilst the Momentus 5400.6 and 7200.4 hard drives are being promised sometime during Q4 of this year.

You can locate Seagate's press release for more information here.

SCOTTS VALLEY, Calif.-July 10, 2008-Seagate (NYSE:STX) today unveiled the industry's first 1.5-terabyte desktop and half-terabyte notebook hard drives to meet explosive worldwide demand for digital-content storage in home and business environments.

The debut of the Barracuda® 7200.11 1.5TB hard drive, the eleventh generation of Seagate's flagship drive for desktop PCs, marks the single largest capacity hard drive jump in the more than half-century history of hard drives - a half-terabyte increase from the previous highest capacity of 1TB, thanks to the capacity-boosting power of perpendicular magnetic recording (PMR) technology.

The Barracuda 7200.11 hard drive combines proven PMR technology, components and expert manufacturing to provide 1.5TB of reliable storage for mainstream desktop computers, workstations, desktop RAID, gaming and high-end PCs, and USB/FireWire/eSATA external storage.