Amazon.com: Bloody B820 Optical Mechanical Gaming Keyboard with Individually Backlit RGB LED Keys Wired, 104 Keys Standard, Blue Switch - MX Blue Equivalent for Windows PC and Laptop: Computers & Accessories
LK Optical 1.7 Brown switch teardown from Keychron K6 mechanical keyboard - YouTube
LK Optical Switch Set
LK Optical Switch Set
B830-LK GAMING MECHANICAL KEYBOARD-Bloody Official Website