Hey, I'm currently on a 2011 Mac Mini and using a Synology DS413 NAS with four 3TB WD Reds for storage. I'll be switching to a 5K Retina iMac soon, so I thought it would be a good time to rethink my storage situation and potentially utilize the Thunderbolt 2 storage options the 5K iMac offers. 1. Which Thunderbolt box? Using Finder to browse files on the NAS is slooooooowwww. So speed would be the most important factor of the local storage and I don't know the first thing about the Thunderbolt boxes, hoping someone can point me in the right direction. A friend mentioned the Pegasus2 - is that the best choice for the 5K iMac as it's Thunderbolt 2? Want at least 4 bays. Edit: did a search and found AKiTiO Thunder2 Quad and OWC ThunderBay 4 as well #toomanyoptions ! 2. The WD Red drives aren't on the Pegasus2 compatibility chart - really don't see what the major issue would be though - is it safe to reuse them in it? Would hate to buy 4 new drives when these are working fine. 3. Third scenario would be to potentially use the Mac Mini as a NAS server - that would most likely alleviate the Finder / AFP slowness as its coming from another Mac, but how would I connect my four WD Red drives? Thanks! *** More info about the slow NAS performance if anyone thinks they can help! *** The NAS is great in most parts - love the OS and the Synology apps, but I'm really struggling to put up with unreliable AFP issues. Browsing through file directories is tedious - occasionally it'll be fine & only take a few seconds but most of the time it takes a good 30 seconds to load file lists, and sometimes it just hangs there for minutes with no progress. Dragging an MP3 stored on the NAS into Ableton Live on the Mac (audio software) will take 30-40 seconds to import (while freezing the UI) whereas if I drag in a locally stored MP3 - which isn't even a SSD - it takes about 2 seconds. What's weird though is it can handle streaming and transcoding with Plex to two TV's in 720p flawlessly. I've tried connecting via SMB, CIFS + AFP... have tried both wireless and a gigabit ethernet cable (yes, router is gigabit too). No improvements.