Sanwa Supply NT-17UBKN USB Numeric Keypad, Black

[Number of keys]: 20 keys [Key pitch]: 19mm [Key stroke]: 3.6±0.5mm [Operating force]: 50±5g [Cable length]: 0.8m [Size]: W82.8×D131×H28mm [Color]: Black [Compatible models]: Laptops with a USB port and running Windows 10, 8.1, 8, 7, Vista, or XP. For product compatibility and details, please visit the Sanwa Supply website.