Havit KB500L LED backlit sw mode. | Thank you for your purchase of 4IN1 COMBO-555. For Backlit LED switching keys as following steps; KB500L LED sw keys video. FN + Pri Sc
KB500L Multi-function Backlit Keyboard – Computech Store
HAVIT TECLADO GAMER INGLES C/ RGB NV-KB500L
Taking a deep look at the HAVIT KB500l—a 60%, mechanical, RGB keyboard - YouTube