Review on CORSAIR K57 RGB Wireless Gaming Keyboard - <1ms Response Time with Slipstream Wireless Connectivity - USB Dongle, Bluetooth, or Wired Option - Individually Backlit RGB Keys - Black by Sandy Martin

I returned this keyboard for the following reasons: The keys are ridiculously tall. Even if you use the palm rest to keep your hand higher, you'll have to strain too hard to press a key, which will also affect your typing speed. They added a column of "G" keys to the side of the keyboard and noticeably moved the rest of the keys to the right. This turned out to be a problem as I'm used to the standard keyboard layout. I type with touch typing and expect a standard touch layout. Reference to the key layout, so if all the keys in this layout are so far from the left edge, I was typing slowly and with a lot of typos. I think in my case it wouldn't (could) be a big problem if those keys were positioned horizontally (above the F-keys) or (maybe) to the right. The LED colors were ok but since there is no official Linux support I didn't bother to check the third party apps. I used to try to write this review using K57 and the number of typos I made was just absurd. Also, the plastic on the right side had sharp edges. Not that it'll hurt you, but it's uncomfortable.