Was quite surprised at the small size of the drive. Very neat. Comes with some built in software, which I didn't need. If requires activation if you need it, so it was no problem. Been in use for a few months works perfectly as a backup to my desk top. The transfer speed on the USB 3 is not bad.

I bought this a couple of weeks ago to replace my older 3TB WD My Book (which is still going) and as usual WD hasn't let me down, the build quality is spot on and the performance is excellent (see attached screenshot of ATTO).

I bought this Product (3TB) from USA for $116 around ?7300. It works fantastic with my windows laptop. Data transfer rate is around 25~50 mbps normally. It's the best product in this range.

I always use "Passport" size external HDDs for backups and my old 2TB had not enough space anymore. This one has huge capacity for such a small box and will last for a few years. High recommendation.

Huge capacity for such a small box; USB 3.0 - fast transfers; Good deal when on sale

None

I bought two for mirrored backup and archival storage. Works as advertised. Wish it was thinner, but not a big deal. A bit larger than a pack of cigarettes and about as thick. Have not tested performance since that's not terribly important to me - seems to be quick enough.

Small and quiet! Now i can backup all my data on this bad boy!

I use this drive to provide Time Machine backups for the 3 Macs in the house. Two of my Macs have USB2 ports, so these ports dominate the write speeds to the disk. Even though the TM backups took 20 or 30 min each, these were the first time backups which amounted to 60-90GB.

Silent, low power, reliable (so far); The small form factor and self-powered aspects are pluses as well

None; Update(2016/Jan): I used it a few times (maybe 4) and had it unplugged sitting on my desk; I used it just now for another Time Machine backup and it started to act weird; It would unmount spontaneously.

It's SO small! Well, compared to my previous back up drives. No problems with connectivity, easy to use and the in-built back up software makes the device so simple. I now have the peace of mind that my PC is being backed up every hour. Or you can just use it as a storage device - up to you.

Bought Solely To Use With My PS4 As Extended Storage Due To The 500gig was Not Big Enough To Store My Collection Of Games Via Digital Copies. Powered Buy USB There For No Other Power Outlet Needed And Some what Matching Design Too.

3 Years warranty, fast speed, high data recovery success rate.

WD - this is a good and reliable hard drive

wondering who had the idea to make such an ugly design maybe it's good; will not fall out from the hands; ;-