We have 21" mid 2011 iMac at work and it's showing some sign of age. Unfortunately, they aren't ready to throw out the machine. So we are probably going to do minor upgrade to the machines. More RAM and external SSD. I thought about getting Seagate TB adaptors, but I don't think our company want to deal with three different warranties(SSD, adaptor and cable) if something goes wrong with it. So I am looking for a pre-built external SSD with TB connection (lack of USB 3.0 makes TB the only choice). I've been looking at this one. http://www.amazon.com/Transcend-256...&qid=1420253591&sr=1-6&keywords=transcend+ssd Does anyone have any experience with them? or any other suggestions?