Woot! has Womier SK75 75% Full Aluminum RGB Wireless Mechanical Gaming Keyboard (Various Colors) for $79.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Thanks to Deal Hunter JuJuFrankenbean for finding this deal.

Available Colors (select from drop-down menu):

• Black $79.99
• Blue $79.99
• White $79.99

Features:

• This 75% wireless gaming keyboard has five layers of sound insulation and shock absorption internal design, including PORON plate foam, IXPE switch pad, PET acoustic pad, EPOM case foam and PET insulation film.
• Comes with a convenient and universal VIA Programmable, so you can easily program and remap each key on the keyboard.
• Open source firmware means unlimited possibilities for keyboard layout, shortcut keys, backlight effects, etc. Keyboard with 16.8 million RGB cool backlight. You can freely choose a variety of factory-set lamps from the keyboard.With south-facing LEDs, the RGB lights show brighter and brings more fun for customization.
• 3-Mode Wireless Mechanical Keyboard & 4000mAh High-capacity Battery