You can now buy a 26TB hard drive, if you're willing to pay the price
And boy is it expensive.

How much would you pay for a 26TB hard drive? While solid-state drives lead the pack in terms of speed and reliability, hard drives offer a ton of space in comparison. This makes them ideal for storing huge amounts of data, either as part of a main drive or a backup. Well, if you thought that HDDs have come to a head in the amount they can store, think again; Western Digital has just published a 26TB hard drive on Amazon, and it isn't cheap.