The ultimate modular case. For real? Modular gadgets are the Holy Grail of the tech world. The idea that you could take the parts you most care about and put together a tailor-made device that's perfect for your needs carries obvious attraction, but the concept is often too good to be true and, after the initial excitement, modular hardware typically ends up being either too expensive or too ambitious, or both.

The modular Mini Lego computer and Project Ara smartphones are good examples of concepts that sound fantastic but have plenty to prove, and in the PC chassis arena, modular designs usually fall flat from the get-go. Razer's Project Christine never got going, and who still remember's the ill-fated Antec Lanboy Air?

It's a precarious business, so when Cooler Master told us it had made "the ultimate modular case," our immediate reaction was one of "uh oh". But having spent some time playing with the new chassis, we've discovered that it's different from all those who have failed because, well, this one succeeds.