Group 1 - The RK K99 Starblade gaming keyboard is highlighted as an excellent choice for gamers, featuring customizable three-mode mechanical design [2][3] - It supports wired and wireless dual 8k low latency, enhancing the gaming experience with immersive RGB lighting effects [2][3] - The current promotional price on Tmall is 399 yuan, with a discount of 100 yuan, making the final price as low as 299 yuan [2][3]