Cooler Master has created a new line of PSUs with a more durable 12VHPWR 16-pin power connector that is less prone to melting. The connector has been modified from the top down to improve the cable’s safety including thicker materials, and an improved latching mechanism.
The connector is available on Cooler Master’s GX III series of power

Source: Hot Hardware – Cooler Master’s GX III Gold PSUs Flaunt A Super Durable 12VHPWR Power Connector