Corsair K100 RGB Optical-Mechanical Wired Gaming Keyboard - Black *READ*

From the website: You’ve Reached the Top: The CORSAIR K100 RGB is the pinnacle of CORSAIR keyboards, offering the cutting-edge performance, style, durability, and customization that gamers need to stand above the rest. The Centerpiece of Your Setup: The CORSAIR K100 RGB boasts a refined design bolstered by a durable aluminum frame, dynamic per-key RGB backlighting, and a 44-zone three-sided LightEdge. Powered by CORSAIR AXON Hyper-Processing Technology: CORSAIR’s most advanced gaming keyboard experience delivers up to 4x faster throughput with native 4,000Hz hyper-polling and 4,000Hz key scanning, while driving up to 20-layer lighting effects. CHERRY MX SPEED RGB Silver Keyswitches: Offer lightning-fast response times with an actuation distance of just 1.2mm, are guaranteed for 100 million keystrokes, and keypresses up to 4x faster than standard mechanical gaming keyboards with CORSAIR AXON. Multi-Function at Your Fingertips: Take command over backlighting, media jogging, and more with a versatile iCUE control wheel, fully programmable to perform actions in games and applications. Tested, keys all work fine, didn't install iCue but the lights light up and cycled with the function button. Keyboard tester site doesn't show NumLock as working but you can see that it clocks last button pressed as NumLock, so that seems like an issue with their side.