Matias MT1003AL USB Keyboard German, QWERTZ, Macintosh Aluminium USB port | Conrad.com
Matias Programmable Ergo Pro Keyboard for PC - Healthier Typing
Amazon.com: Matias Wired Aluminum Keyboard for Mac, Mac Numeric Keyboard Compatible with OS, iMac, Mac Mini, MacBook Pro/Air Laptop, Built-in 2 Port USB 2.0 Hub, Plug and Play Ergonomic Keyboard - Silver :