I have an old Mac Pro that holds I think 3 internal hard drives in addition to my main drive. All total I have about 4TB of data that I want to have redundantly backed up. While my computer can accept new internal drives of 4 to 6TB, I'm wondering if this is the right option for me. I don't expect to be able to use this computer that much longer as it is so old it can't even run the newest iOS. I have a small external drive that's 500GB and an external drive adapter that allows me to pop in internal drives but use it as an external drive. I expect to buy a new Apple computer when one comes out that has graphics capability that I'm satisfied with. I have been starting to think maybe I should start thinking about buying a NAS system. What about cloud backup? If I went cloud, what is the acceptable lowest speed internet that I'd be needing? My data is just for personal use and I do not use if for work. Most of my access to these drive wouldn't require high speed such as real time video watching although that could be something I want in the future. I want something that could work with an iMac or mac mini that I might buy in the next year or so. I also don't feel like spending too much time learning a bunch of new computer stuff and want something that works without too much fuss or muss. I'd like to have redundancy in my backups. I'm also worried about ending up with a pile of external drives. Thoughts?