Enter NewerTech’s miniStack V2 and V3. The miniStacks are designed to meet the needs of shortsighted mini owners like myself who loved the compact size and look of the Mac mini, but underestimated the eventual need for additional hard drive space as well as expansion ports. The miniStacks come in 8 capacities, ranging from 0GB (as in, bring your own drive) all the way up to 750GB (1TB for the V3). The units I tested were both 500GB models. The V2’s come with “regular” ATA (IDE ) drives, the V3 comes with the newer SATA spec. All models 250GB and up have a 16MB cache (the 1TB V3 sports a massive 32MB cache), lower capacities have an 8MB cache. All drives run at a fast 7200 rpm, compared to the 5400 rpm drive found in the Mac mini.