Apple - MacBook 12-inch Retina Display Intel Core M 1.1 GHz 256GB (MJY32LL/A) Early 2015 (Certified Refurbished) - Space Gray

Inside the MacBook you'll find the fifth-generation Broadwell Intel Core M processor, which is designed with 14-nanometer process technology. This means that the chip is packed with more transistors than the previous generation, for higher density and more efficient performance. Since the Intel Core M only draws 5 watts of power and generates less heat than its predecessors, Apple is able to omit the fan. Instead, the logic board, which is 67% smaller than the one in the 11" MacBook Air, is seated on top of an anisotropic graphite sheet, which helps disperse any heat that is generated out, to the sides. No fan also means the MacBook will be virtually silent. Even with its miniaturized internal components, the new MacBook has an impressive capacity, featuring 8GB of fast, power-efficient 1600 MHz LPDDR3 onboard RAM and 256GB of PCIe-based flash storage.