Abkoncore A660 @ TechPowerUp
 

Although the lighting is reminiscent of the Logitech G303, the Abkoncore A660 has a shape similar to the Logitech G203 or G305. Equipped with PixArt's PMW3325, Omron switches for the main buttons, and full software customizability, at just $20, the A660 is particularly interesting for those on a budget.

https://www.techpowerup.com/review/abkoncore-a660/