Despite the popularity of slim, speedy external SSDs, external hard drives are still essential, cost-effective storage. For as little as $50, you can add a terabyte ... use a 3.5-inch drive ...

It’s never been easy to upgrade the storage in Macs, so it’s always a good idea to buy an external drive ... to either 1TB or 2TB of storage, and it was still using an old USB 3.0 interface ...