Very straight forward and much faster with SSD.
2 - 4 horas
Installing a second hard drive into the Mac Mini 2011. I wished the Mac Mini's all came with 7200 rpm hard drives. I've opted to add a SSD for programs and use the 5400 RPM for media file purposes for performance and storage reasons.
Bought the dual harddrive kit to perform the upgrade and referenced the website to perform the upgrade. It was fairly simple and straight forward. However, I do wish there were some videos to show how to perform certain steps. As a person who is new with opening up Macs (done PCS without issues), it did take a while to figure out how to pull certain wires in tight spaces. Once I went through the process, I was very comfortable with putting and disassembling the to perform the task.
Small ruler will help with some of the screw measurements when putting the Mac Mini together. I would also recommend air blaster (not the can) but the ones used for cameras to clean out the computer.