As to whether the M.2 hard disk needs to use heat sink, the answer is not absolute. In general, most M.2 hard drives have low power chips and do not require the use of heat sinks. However, if you carry out high-speed data transmission for a long time, or use in a high temperature environment, in order to avoid the chip temperature is too high and affect the read and write speed and stability, you can properly consider the use of heat sinks. Therefore, whether to use the M.2 hard disk sticky heat sink needs to be selected according to the actual situation and personal needs.