Apple's Time Capsule was discontinued long ago, but you can still get them to do your Time Machine backups on a modern network. Here's how. In 2008 Apple introduced a product called Time Capsule, ...
My current Time Machine drive is a 4TB HDD I've been using for...probably like a decade at this point. It's been very reliable. But being an HDD, it has the obvious downsides of noise and slowness.