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The Seagate Expansion 3tb is an 3.inch form factor external usb Hard Disk Drive (HDD) with USB 3.0 and USB 2.0 compatibility. Coming with it's own power lead and usb cable in the box, this is an instant solution to your storage needs. The drive is truly plug and play and you can get transferring files immediately.
Measuring at a small 39.79mm x 125.91mm x 207.08mm it is not the smallest external drive on the market, but is still easily portable at 939 grams, and robust enough to be thrown into a travel bag, however the power lead and USB are awkward to pack. When running the drive is very quiet, sometimes in large file transfers a little noise occurs, but really so little as to not worth worrying about.
In the box there is very little in the way of extras, just the HDD, 1.2 metre USB 3.0 SS B cable, power cable with both 3-pin and 2-Pin adaptor, diagrams for instructions and details of the manufacturers warranty which is a 2 year warranty covering the drive itself from defects.
There are a multitude of uses for this product; extra storage for your regular computer, transferring large files quickly between computers/locations and a personal favourite of connecting to my Blu-Ray player to show video files on my TV, to name but a few.
The drive uses an SS B USB 3.0 lead to connect, which provides high transfer speeds and also seems to hold into place with more force than a standard USB lead.
The HDD is easily formatted to whatever system architecture you require, and seems to be flexible to whatever tasks you can throw at it, I have not found anything it cannot do yet! Some reviews/adverts have stated that this requires Windows to operate, however I have had no problems using Mac OS X and Windows XP interchangeably, although you may have to reformat your drive to do this, so it is wise to do so straight away, so you do not lose data.
One problem i have found is that the only way to tell if the drive is on at all is the blue led on the top of the unit which signifies data being transferred. There is no on/off switch. This is an issue if you are trying to troubleshoot the drive as it can be hard to tell if the power lead is malfunctioning or if the drive is failing to connect etc. Luckily I have had no problems in the 4 months of continuous use mine has gotten.