When did a terabyte of storage become passé? Probably when this became the second terabyte drive we reviewed. That does give us an advantage, as we have a drive to compare to this one - the Hitachi Deskstar 1TB.

Strong eco credentials

Slow and expensive

Slower than the Hitachi and more expensive too, but lower power usage will appeal to some

While the latest and highest capacity drives are always the most tempting, the capacity slots just under these tend to offer by far the best value. Need concrete proof? Take this 750GB drive from Western Digital

Great price, Spacious capacity

Not quite top performance

While performance is a shade off the best around, value for money is pretty much unbeatable

The case feels a bit cheap, but once installed, the drives are secure and protected. The twin-bay setup allows two 750GB hard drives to be installed for 1.5GB in RAID 0 or 750GB of entirely secure RAID 1 data storage.

Decent web interface, Drives are well protected

Feels cheaper than it is

The price is steep, but you just about get your money's worth

The first hybrid hard drive on the market is from Samsung, which handily enough manufacturers the flash memory used within the drive itself. Physically the drive looks and acts like a standard 2.5in SATA hard drive with a standard 8MB buffer

Good sequential access performance

Stingy amount of NAND flash, Only of relevance when used with Vista

The performance benefits are there for all to see, but Turbo Memory puts Samsung's efforts in the shade somewhat

Weighing in at just 175g, the FHD-2 Pro is also impressively slimline, measuring 127 x 79 x 15mm. Attractively finished in aluminium casework, the only protuberance is an illuminated button towards the rear

Strong performance, Great looks

None to be found

There is little to fault to be found on this cracker of technology

This is not a breakthrough capacity hard drive; it's an external storage device offering two smaller drives you can configure in mirrored or striped modes, appearing as a monstrous 931GB drive once it has been formatted.

Support for FireWire 800

Unacceptable noise levels

There are better ways of achieving 1TB of storage

SATA clearly offers plenty of advantages over SCSI for server applications, and the 9500S-4LP shows it can deliver equally good fault tolerance and top performance, too.

It's a more than practical replacement for writeable DVDs. Seagate is so convinced of its performance that it has included software that turns it into a bootable disk, so in theory you could run Windows from it. It's safe to say that its capacity and pric...

It's not ideal if you hope to run intensive applications from it. Other than this, we can't really grumble - it's a perfectly functional, though certainly not essential, piece of storage.