Apple's recent iPad media gathering also saw the Cupertino-based company unveil a revised Mac mini, the first in roughly two years. The machine now packs a pretty solid punch with its Intel Haswell processor and improved graphics but there's something to be aware of if you're planning on making a purchase soon: the RAM is soldered in place.

Previous versions of the Mac mini featured user-replaceable memory but that's no longer the case. It's unclear why Apple made the change but all we know is that you'll need to equip your new mini with as much RAM as you think you'll ever need when ordering.

The entry-level Mac mini starts at $499 and includes just 4GB of RAM. The next base model doubles the amount of memory to 8GB and includes a faster Core i5 processor for $699. Even the top-end $999 model only features 8GB of RAM although all configurations are upgradable to 16GB if you're willing to pay extra.

Upgrading from 4GB to 8GB will set you back an extra $100 while doubling your RAM from 8GB to 16GB will cost an additional $200. Taking the jump from 4GB to 16GB of memory will tack on $300 to the total cost of the machine.

It's also worth pointing out that it is possible to replace the hard drive on your own although doing so will likely void your warranty with Apple.