2 - 4 horas
needed extra storage and a hybrid configuration.
Went great. I grew up disassembling/reassembling electronics.
If you're adding a second drive to a mac mini, you absolutely *must* use an SSD. Even if you only get a 64gig one, you can put the OS on that drive while storing heavy media on the original or second drive. The speed/value bump is better than you'll get w/any upgrade aside from RAM.