Perixx PERIBOARD-335BL Wired Ergonomic Mechanical Compact Keyboard - Low-Profile Blue Clicky Switches - Programmable Feature with Macro Keys - Compatible with Windows and Mac OS X - US English - Newegg.com
Amazon.com: Perixx PERIBOARD-624B US, Wireless Ergonomic Split Keyboard - Up 30 Ft Separation - Adjustable Tilt Angle - Low Profile Membrane Keys - Black - US English : Electronics
Amazon.com: Perixx Periboard-612 Wireless Ergonomic Split Keyboard with Dual Mode 2.4G and Bluetooth Feature, Compatible with Windows 10 and Mac OS X System, Black, US English Layout, (11354) : Electronics