Using my "On the Go" to back up one of my external drives. Easy to use. OWC listened to what I wanted a back-up to do and made this recommendation. Have been very happy with it so far. Comes with it's own case.
The drive holds a huge amount of info at a reasonable price. The fact that it's USB powered means one less power cord hanging down the back of my desk. Backing up is way cheaper than getting files off a crashed hard drive.
I have two of these, one formatted with OS X and the other NTFS. Great for high speed mobile data transfers. If you intend to use a 7200rpm drive that draws a bit of power, note that the drive may not always switch on over USB. Best to try another USB port or if connected to a desktop, always use the USB ports on the back of the tower as they can supply more power.
This is a good combination of storage capacity - spinning velocity - size - price. The only drawback I've found is that the firewire cable that comes with this unit is unreliable, it connects whenever it feels like it which is not most of the time, just replace that cable and you're good to go.
This nice, small external USB 3.0/2.0 external drive is everything you are hoping it will be when you are looking at drives. It's fast, small/slim and easy to use. Plug it in, it shows up on the desktop, start using it. It even has a heat sink to help extract heat out of the enclosure. I highly recommend this unit.
I research and recommend products for clients regularly. My first stop is typically OWC because I rarely have to go elsewhere. This little drive is wonderful for training people to backup. I set it up using the OWC software, then turn it over to the client. All they have to do is remember to connect.
Pros: Quality, Durability, small size, included carrying case
It's very practical as well as stylish. 2 Firewire ports allows you to daisy-chain. Has on on/off switch. The combo Firewire 800/USB 3 means you're guaranteed to get high performance no matter what Mac you're connecting to. (I have some 3+ year old Macs with USB 2.) Also, its transparency allows you to quickly identify exactly what drive it is. Plus it's cool looking. :)
My only suggestion: It took me a while to figure out how to stick my SSD into the enclosure. The instructions were more for software installation and not hardware.
Pros: Quality, Durability, high performance, versatility, nice looking!
I have a late 2013 iMac. I am using this enclosure with an SSD as my boot drive. No trouble putting it together. The USB 3.0 cable is very stout. Transfer speed is what I have come to appreciate from OWC products.
I bought OWC's Mercury-On-the-Go external hard drive as a Time Machine backup for my new Mac Pro, that has a 1 TB SSD. It offers the best value for the specs. Competitors don't offer 1 TB USB 3.0 drives that are 7200 RPM at this low price. Others only offer a slower 5400 RPM, so this drive is much faster and cheaper. The Mercury on-the-Go uses a transparent case, so you can see the exact hard drive specs, and know what HD brand you are actually getting. I used to use full-size external hard drives for my backup, but find that their reliability is no better than the smaller drives, plus I like the smaller footprint. It shipped and arrived very quickly, set-up easily and so far has worked flawlessly. OWC branded hardware I find is dependable and their phone service is always friendly and helpful, so I consider them a reliable source that stands behind their products. I just wish they would offer this product with a Thunderbolt 2 connection.
I'm using this 120 GB Ext SSD FW800 on an iMac 20" Early '09. It was taking about 4 minutes to boot 10.8. I moved to 10.9 on this smaller drive, except for my iTunes and iPhoto libraries.It is now my preferred machine; over the mac bk pro, chrome bk, iPad 3. Responds nicely and is now a pleasure to use. Boot time might be under a minute. Made this old dog of a machine usable for the next few years at least! Customer sec helped to pick it out. They made it easy for me. Pricing is good also.