Level 20 RGB Titanium Gaming Keyboard Cherry MX Blue
Amazon.co.jp: Mechanical Numeric Keyboard 20 Keys Durable Splashproof Mini Portable Numeric Keyboard Mini Portable Plug and Play for Desktop Laptop : Computers
Falcon-20 Programmable Keypad
The Shrimp is a 20% gaming keypad that cares not for 'space captain' designs. Or ergonomics | PC Gamer
The best gaming keyboards: full-size, TKL, and 60% mechanical options - Polygon