I'm planning to buy a Drobo device (a RAID array that acts as an external hard drive), and I need to know which port configuration is sufficient for my needs. If I'm planning to use it to store and play 1080p movies, and maybe install and play games. Does it matter if I connect my computer to it via USB 2, USB 3, or eSata? Obviously some of these ports are faster than others, but what I'm asking here is if the speed difference matters for my needs. Will USB 2 be good enough, or do I need one of the faster options?