EAGLE Consus ET-CSDU2J-BK DUAL 3.5" SATA I/II to USB 2.0 2-BAY JBOD External Enclosure

Pros: 2 bays for around the same cost as a single bay unit.
Description and instruction manual states that it's for RAID 0 ,JOBD or a for a single drive, which is great if thats what you want. But it also supports 2 drive in a non RAID setup. You simply must remove the jumper. I put in 2-200GB drive that already had my data on them and fired it up, I was expecting to have to format them, but I did not.

Cons: Construction of the product looks good, but feels a little cheap. I would not recommend it for a heavily used portable drive, but It's fine for a desktop back-up solution.

Would have given 5 stars, if It was built a little heavier.

As for heat. I have been running a backup for 2 hours and it's not even warm

Fan is a bit loud to be so small.

Overall Review: I taped the jumper inside in case I ever do want to go with a RAID, But running on USB I doubt there would be enough (if any) of a difference in speed. Why risk losing all your data id one drive fails
I just use a freeware program called Allway Sync, it will pull you backup data over to the external drive, and check at scheduled intervals to ensure that your backup is current. This takes a little time the first time you run it , but after that it's quick and painless.
I also run it to sync the external drive_1 over to drive_ 2 so I have a mirror copy on hand.

Can't recommend how long it will last.. only time will tell.

Drive moves just under 100GB of data in 1 hour.

Pros: Good size, design, price, and descent transfer speed.

Cons: THE FAN STINKS. In fact, that is my ONLY con! I've owned two of these. With the first one, the fan never worked. The second one works, but if left off for more than about 6 hours, it creates a loud whirring noise and the fan seems to have difficulty spinning. Once it warms up, it acts normal again.

Overall Review: This was my first time buying an enclosure. But compared to the prices of external hard drives, this is still probably the better deal, even at the risk of fan issues.