Review on Dell Inspiron 15 5000 & Latitude 3379 XPS 13 Laptop Charger - 45W AC Adapter with Power Supply Cord - Compatible Models: 5558 5559 5759 5555 3552 3558 7000 7579 7568 7350 9350 9360 - LA45NM140 HA45NM140 00285K by Nate Eich

Can't believe I burned out from the old adapter. I immediately decided to buy another replacement. To eliminate "laptop heating". I've been monitoring the situation with this new adapter for several days. After a full day of use, I tried to touch the "black square" with my hand, which is also hot, but such a temperature can be tolerated and held by hand. I think that this is a normal heat dissipation of the device, and it is safe, at least I will not burn myself. Well good product.