Apack Zerotherm BTF95 review: Passive cooling once involved sticking a small lump of metal onto your CPU. Well, those days are gone, as this particular heatsink proves. You might be eyeing it up for your media centre - it is, after all, utterly silent

If the BTF90 was the kid who grew up to become captain of the rugby team, this is his clumsy, weak-chinned brother, determined he's still capable of anything his sibling is

Not quite sure where Apack got the idea that hardcore gamers and modders are really into butterflies, but that's the risible motif stuck on the top of this slim tower. That aside, it keeps temperatures low even under full load

Office opinion of this CPU cooler is quite distinctly polarised between 'very cool' and 'a camp as a boy-scout's outing'. There's no denying, that if you pack one of these into your rig, it'd be the kind of thing that would draw a crowd at a LAN party