Cooler Master’s SK621 keyboard is a teachable moment for high-tech hardware companies everywhere. When the company’s latest wireless keyboard stumbled out of the gate, Cooler Master made a move we wish all companies would: Fix the product, rather than make users buy a new one.

All this concerns’s the company’s SK-series of keyboards, which came out to much fanfare because of their flat keys and Cherry MX low-profile switches.

Unfortunately, a lot of people hated them. Our review of the SK621 criticized the cramped layout, hard on all but those with the most delicate digits.

I was dismally disappointed. I thought I’d finally found the perfect Bluetooth mechanical travel keyboard with RGB, but those hopes were dashed in just five minutes of trying to type on the SK621. 

While flat keys are fine on a low-travel keyboard, my fingers could never type on the SK621 without smashing into neighboring keys. I had to basically type with fingers at a perfect 90-degree angle, and with the precision of a robot, to make it work.

It wasn’t just me complaining, either. Popular YouTuber Dave Lee criticized the SK-series of keyboards in a video, going so far as to comment: “Looking to sell two awesome Cooler Master keyboards. Hit me up for details,” Lee quipped. “I wanted these keyboards to be amazing because they look so good. But they’re terrible. DON’T BE FOOLED.”

Normally, when hardware debuts like a dumpster fire, you’re just stuck. Your fat, imprecise fingers don’t work with it? Too bad, is what most companies would say.

Cooler Master, however, heard the pushback from a lot of its customers and went back to the drawing board. The company redesigned the key caps to be more concave and raised.