The Cooler Master 280L is the larger sibling of the Seidon 120M that seems to be the better cooler if judged based on the size alone but does it really perform better?
Here’s the packaging for the 280L.
The block is much bigger than the 120M and the mounting plates and holders are different as well.
The 280M comes with 2 very powerful 140mm JetFlo fan.
Then there’s the accessories for mounting.
Here’s the LED light on Nepton 280L when powered on.
More details at the official product page.