The Alpenföhn K2 is the company’s own attempt at a dual tower cooler. Before they start being accused of trying to copy Thermalright or Noctua, we have to remember that the K2 has been in development for a very long time and the first prototype was first seen back at Cebit earlier this year. So what exactly is the K2? Following their theme of naming coolers after famous mountains around the world, their dual tower cooler very appropriately takes its name after the world’s second highest mountain, Mount K2.