Portable Smart 2.4G Wireless Mechanical Numeric Keypad ,21 Keys Mini Numpad Gaming Keyboard ,for Laptop ,Tablets Black - AliExpress
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Amazon.com: Rottay Number Pad, Mechanical USB Wired Numeric Keypad with Blue LED Backlit 22 Key Numpad for Laptop Desktop Computer PC Black (Blue switches) : Electronics
Asus' ROG Claymore II mechanical keyboard has a handy detachable number pad - The Verge
Keychron Q0 Customizable Mechanical Number Pad
Amazon.com: Magicforce Mechanical Numeric Keypad Brown Switch Gaming Keypad 21 Keys Mini Numpad Portable Keypad Wired Number Pad for iMac Laptop PC MacBook Notebook : Electronics
Amazon.com: Kisnt Number Pad, Mechanical Numpad Wired USB Standard 17 Keys Numeric Keypad with PBT Keycaps White Backlit Keypad for Laptop PC TKL Keyboards (Brown Switch) : Electronics
Rottay Number Pad, Mechanical USB Wired Numeric Keypad with Blue LED Backlit 22 Key Numpad for Laptop Desktop Computer PC Black (Blue switches) - Walmart.com