That looks like a dock that never worked for me. Test it as soon as you get it. I'm sure these are fine most of the time but cases are too cheap today.
http://www.amazon.com/Passport-Portable-External-Storage-WDBBEP0010BBL-NESN/dp/B007FQNKRC looks to be cheaper and you avoid the issue of bare drives.
Bob
I'm going to be needing a HDD to back up a computer at my American Legion post so I thought I'd get one for myself also. I was thinking about buying a HDD docking station like this-> http://www.amazon.com/StarTech-com-eSATA-Drive-Docking-Station/dp/B001IOPIRM/ref=sr_1_6?ie=UTF8&qid=1379031770&sr=8-6&keywords=hdd+docking+station and 2 HDD's like this->http://www.amazon.com/WD-Blue-Desktop-Hard-Drive/dp/B0088PUEPK/ref=sr_1_1?s=pc&ie=UTF8&qid=1379032425&sr=1-1&keywords=wd+10ezex or is this a bad idea ? What would be the better way to do this ?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic