Pros: This is one of the best enclosures that I have purchased. It has been used and abused and it still has no issues reading dirves.

Cons: Wish I would have bought mulitples.

Pros: Well made
Metal case
Sleek looking
Quiet fan

Cons: none

Other Thoughts: In service about 20 months, no problems.

Pros: Works great for more storage for home

Cons: None

Pros: I got an ASUS router with a USB plug, so I thought I'd try this enclosure out as an NAS. Works great for me. I like the 'jumbo' option. I put 2 1TB drives in it, flipped the jumbo switch, and it looks like a 2TB drive. The enclosure is well made and easy to load with 3.5" drives. I store movies and TV shows on this network-attached drive and am able to share and access this drive from every device on my network. It's seamless and has been up and running 24/7 with no problems for 6-7 months.

Cons: It's only USB 2.0, but the router is only 2.0 as well, so I'm not really losing anything with this application.

Other Thoughts: I'm going to get another one and use it for the same thing.

Pros: I like these a lot, I took some tape and covered the lights so I could sleep at night instead of trying to count bytes. the fan on off switch is a nice touch.

Cons: The fans do not switch off when i PC puts the drive in power saving mode. and if you use JDOB, do not take the drives out of the R2 later. even if you take both drives out and put them into the same computer. Windows will not see the JDOB, nor will it see the two drives as having partition at all, you will be asked to format them. but as long as you don't screw with them you can just pop them back into the R2 and all should be well.

Other Thoughts: smarter power features would be nice, allow windows to fully power the device down when not in use.

Pros: Simple setup and use. Worked perfectly for almost 3 years.

Cons: Would like to see them updated with usb 3.0.

My power supply died after 3 years.

Other Thoughts: Used with both a PC and with an Asus 66u router as a media server. virtually no setup is required. Will probably upgrade to their 4 slot version at some point.

Pros: The enclosure runs very cool with the fan on and two Western Digital Red HDDs.
The fan is very quiet, and is barely audible.

The case, when in JBOD mode shows both HDDs individually.
The JBOD/Big mode switch is on the inside of the enclosure, but is very easy to access once the rear four screws are taken out.

The design is very solid and there are no loose or rattling parts internally or externally; probably one of the best external enclosures I've seen in terms of quality.
When the fan is off, the unit will get warm when both drives are running and active, but if the drives are set to spin down, then the enclosure will get no hotter than room temperature and is totally silent.

The outside has a brushed-metal look to it, and the plastic stand has a good, solid fit.

Cons: The JBOD/Big mode switch is internal, but this is only a minor inconvenience at most. The maximum supported drive capacity (per bay) is 2TB, which is beginning to show it's age, especially with 3-6TB HDDs available now.

Other Thoughts: This works great in JBOD-mode with an ODROID-U3, Debian Linux, and MDADM RAID1.
I have yet to see any issue at all with the enclosure, and the activity lights on the front are very neat.

Pros: Still going good, built tough and holds my drives tight

Cons: none so far

Pros: I was looking at past orders and found I had purchased mine in 2009! It's still going strong. I leave the fan on and it runs most days, all day, without needing to replace the fan, but it does need to be opened up and cleaned every couple months (says more about my house than the device, though).

Great if your primary computer is a Mac laptop because you get to use two drives with one plug!

Cons: Only supports up to 2TB, which is feeling tight now. Copying from one internal drive to the other can feel slow (limited by one USB connection).

Pros: Allowed me to use two(2 old 500 GB hard drives, as a 1 TB back-up drive.

Cons: The unit constantly disappears from Windows 8.1. I have to constantly turn the unit off and on, so that windows can recognize the drive. If you are looking for a reliable back-p drive enclosure, well this is not it.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

Unfortunately this product does not support Windows 8.1 please contact our team for warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care