"Over all, Scythe has managed to create some killer heatsinks. Scythe's build quality was top notch and each cooler's performance does not disappoint. While the Ninja Plus Rev. B cooler screams for more elbow room, the Katana 2's only concern is that it has enough head room. The Ninja Mini keeps up with its bigger brothers but yet does it in a smaller form factor which is great for smaller cases and HTPC cases."