But it’s not just useful—the KC21 also offers both tactile and aesthetic flair. It comes with two sets of LEDs: one on top, the other down below. The top set can be equipped with gradient or white LED lights, while the bottom set are RGB. For tactile continuity, the KC21 can be fitted with your choice of Gateron or Cherry switches. And instead of humdrum top-printed keys, it’s equipped with ABS keycaps featuring front-printed, etched legends.