The K57 RGB Wireless performs well in practical testing. Corsair promises a response time of less than a millisecond, which is to be achieved using the new “slipstream” technology. We can’t measure this, but we can confirm that there is no significant latency compared to wired keyboards. In addition, the range is impressive: typing in the next room or even on another floor is possible without any problems. There are also two Bluetooth connection channels available as an option, which are supposed to consume a little less power than Slipstream.
The battery life of the keyboard is also praiseworthy: Corsair promises a battery life of eight hours for the “worst” case – with activated lighting at the highest brightness level. In the practical test in this same scenario, however, we came up with well over ten hours and thus enough time to survive a usual lanparty day. With weaker lighting, the battery life should increase significantly, without activated LEDs even 175 hours.
Writing and playing with the keyboard is also very pleasant over a longer period of time and doesn’t lead to any signs of fatigue. Only the surface of the wrist-rest is worth mentioning, as it is not suitable for every taste due to its rough structure.