M.2 Drives Have An Overheating Problem

[SteelCrysis]

http://www.tomshardware.com/reviews/sams...,4774.html
And cue the downplaying:

The Samsung 950 Pro 512GB flagship SSD would enter the thermal throttle state after 63 seconds of reading data and 65 seconds of writing data. The drive would read 158GB of data and write 93GB of data during that time. You would need to transfer more than three Blu-Ray ISO files from the drive to another high-speed storage product to reach the throttle threshold. Going the other way, you would need to write two full-size Blu-Ray ISO files to the drive to kick into the thermal protection mode.

Samsung increased the thermal performance with the 960 Pro, which can now read for 95 seconds and write for 147 seconds before throttling. Samsung's new Dynamic Thermal Guard technology employs a combination of an improved management algorithm and a novel sticker to combat any thermal throttling issues. The new sticker has a copper film embedded in between the layers, so it acts as a heatsink for the entire drive. The sticker reduces the SSDs temperature, and it even works in restricted airflow environments, like laptops.

If you ever find yourself in "Limp Mode" and need to solve the troubling condition, then the 960 Pro is the answer. The new series doubles the amount of data you can read and triples the amount of data you can write before thermal throttling slows the transfer down. The new limit kicks in after transferring the equivalent of six full Blu-Ray ISO files to the drive (or reading seven ISOs). The nitpickers can now rejoice.