<p>This 20-terabyte drive is a simple, reliable way to back up a huge amount of data. it's great for storing movies, photos, videos, music, and anything else.</p> <p>The post <a href="https://www.popsci.com/gear/wd-20tb-hard-drive-deal/">This 20TB hard drive can hold 40 million photos and it&#8217;s cheaper than ever right now</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>