After a brief hiatus, Apple's high-capacity 2TB Mac mini has returned to the Online Apple Store on Tuesday, but is once again reserved as a configuration option on the most expensive $999 model.

When the latest Mac mini refresh was introduced last October, AppleInsider noted Apple had axed internal storage options beyond 1TB. Prior to the hardware update, a 2TB HDD was offered as an add-on to the top-end Mac mini server, which was also discontinued.

In its return to the Online Apple Store, spotted earlier today, the 2TB Mac mini is now a Fusion Drive unit, but is again restricted to the highest-end $999 model, which comes with a 2.8GHz dual-Core Intel Core i5 1TB Fusion Drive and 8GB of memory, standard. The additional storage space comes at a $100 premium and — aside from swapping to an 256GB SSD — is the cheapest storage upgrade available.