Amazon offers the Logitech K750 Wireless Solar Keyboard for $37.99 shipped. Also at Dell. It has a list price of $60 and has never been offered for less at Amazon in Black. For comparison, you can find the Silver Mac version is on sale for $54 currently. This keyboard is a 9to5 favorite with its solar-focused design that doesn’t require any batteries. Rated 4/5 stars.
Logitech K750 features:
- Solar-powered keyboard: No battery hassles – any light source keeps your keyboard charged for at least three months in total darkness
- Only 1/3-inch thick: Ultra-thin design adds sleek style to your workspace
- Feel-good typing: Logitech-only concave key cap design for faster, quieter, more comfortable typing
- Powerful 2.4 GHz wireless: Enjoy a reliable connection using a tiny Logitech Unifying receiver that stays in your computer
- System Requirements-Windows XP, Windows Vista , Windows 7, Windows 8, Windows 10. Light source from sunlight and/or indoor lighting .