red linear apex switch. never used. The Keychron K10 Max Wireless Mechanical Keyboard in Black offers a sleek and modern design for those in need of a reliable keyboard for their computing needs. With a wireless and wired connectivity option, this keyboard allows for flexibility in how you use it. The QWERTY layout and English language make it user-friendly for everyday use. Designed by Keychron, this mechanical keyboard ensures durability and precision in typing, making it a great choice for those seeking a high-quality keyboard for their workspace.