Pros: Nicely done, quiet.

Cons: I put 3 disks in it, 2x 2TB and 1x3TB, It seems not be able to read the 3TB disc, I am looking to fix that problem. It is suppose to be able to read disks over 2.2TB !!!!

Other Thoughts: Haven't done any speed test on it yet.

Pros: - The drives stay fairly cool
- It's quiet.
- Drives are pretty easy to install.
- Works great with my Mac Mini.
- The blue lights aren't too bright (imho)
- Dust filter in front does its job well.
- WD 1 TB Black series drives work great with this unit.

Cons: - Dust filter in the front got clogged fairly fast but I guess that says more about my home (and cleaning abilities) than the filter LOL
- 3 TB Seagate drive isn't stable (this could be a flakey drive though)

Pros: Nice lights. Sturdy metallic enclosure

Cons: No quality control, faulty board

Other Thoughts: It turned out to be the most useless enclosure I ever bought. After 5 months of working with occasional hiccups to the computer, now it refuses to connect. All my other enclosures work fine. I took the 4 drives out and put in drives from the other enclosures with same results. Idiot lights are blinking and there's no connection. Restarted computer several times and one bay connected only to disconnect after 5 min of work. Apparently the manufacturer has no quality control.

Pros: I have been using the MB174U3S-4SB for about four months now and the external enclosure does not disappoint. The initial motive for buying a four-bay cage is to easily access all my music and video files and have them "physically" ready to use at anytime. Since I constantly listen to music back and forth between my laptop and desktop paired up with different digital to audio converters, I prefer to have my audio source to be uncompressed and my files do fill up my drives quite fast. The upgrade route of adding 2TB drives every time I run out of space in a 4 bay enclosure seemed quite cost-effective to my needs.
The media files are accessed using foobar2000 or VLC in Windows 7 and I never run into delays playing concertos with each movement taking up 800 mb or more. Video files are transferred with an average speed of 170~180 MB/s which is more than enough consider that I use consumer level 3.5" hard drives. The Black Vortex's aesthetic appeal is also very

Cons: I Have Zero cons found

Pros: It does what you would expect.
Multiple Drives in One Enclosure.

Cons: None that I know of A.T.T.

Pros: Big quite fan, looks nice, includes a filter, it does what it says it does.

Cons: This thing is so slow. I bought it to replace an older (and cheaper) HDD enclosure. My older one (using older controllers) is 2 to 3 times faster than this one is. I noticed file transfers taking longer than they should, so I used CrystalDiskMark to benchmark it. Sure enough, the HDDs in this enclosure are slower than when they are in my older enclosure, by a significant amount. The slow down is even worse when transferring data from one HDD to another within the enclosure. I had an HDD backing up another HDD within the enclosure. While that was going on, I tried to access a 3rd HDD within the enclosure and had a very hard time accessing it. My older enclosure could handle this without any issues.

Other Thoughts: IMO, there are better HDD enclosures out there for the same price or cheaper. I suggest looking elsewhere. While the speed issue may not be a deal breaker for others, it is for me. I'm switching back to my older enclosure.

Pros: Excellent external dock I use for local storage. Currently I have 3 x 6TB Western Digital RED drives and they work perfectly with all three drives separately mounted and SMART data for each drive.

Cons: Not really a con; more of a personal preference. I like my drives to be as cool as possible even with mild use, so I changed the fan to a bit stronger one as noise isn't an issue for me. My temperatures stay cool; anywhere from 32C at idle to 40C max during use. The stock fan is sufficient for general cooling and low noise.

Other Thoughts: If you have any need for such and Item I would definitely recommend it.

Pros: very cool design. great air flow and works well on my PC win 7, MacPro. and Linux Ubuntu without any issue. Everything is working as intended. It acts as a really cool, cooler cage for my drives. Heat will never be an issue anymore! I have owned several units of icy dock, single bay, esata, usb 2.0 before and they had never failed me! I will can rest assure that my data will be the good hand, again!

Cons: a little bit pricey but you get what you paid for. but it needs more tray!

Other Thoughts: I will buy it again and recommend it to other people, for sure!

Pros: It's a flexible USB architecture that enables high transfer rates between a mounted drive and the host machine.

Cons: I have lost 2 - 3TB drives in this ICY DOCK and some data that I could not recover from either drive. This is not my first ICY DOCK mass storage enclosure and I have been content with their product in the past, although now looking back...their single drive enclosure gave me problems when using the eSata port.

I would avoid purchasing this enclosure and if you do decide to give it a try, be certain to stress test it in that first 30 days!

Pros: Easy Installation of 3.5'' Hard Drives. Active cooling via 120mm fan.

Cons: Heavy when filled with 4 HDDs? I wanted to purchase another one, but it is out of stock at this time! :(

Other Thoughts: I bought this to setup a raidz2 array. Everything is working well. I am very happy with it so far.