So, this is my first personal NAS device although i do have set-ups at work so I am not a novice. The hidden nature of wherre you plug in the SSD stick to accelerate access means you first have to remove all drives before the cover will unlock to reveal the spot.One problem i did have is that port 3 on my device is a tad sensitive to plugging in the drive so if it gets jiggled a bit or I have to turn off the machine like with the storage upgrade mentioned above drive 3 is just as likely to not read, then read as a new device and storage will get rebuilt on the drive rather than resumed.