Description:Makes your desktop more flexible - MOTOSPEED K22 numeric keypad will extend your keyboard and improve your efficiency.This mechanical keypad adopts red switches, ensures the fast response. With adjustable LED backlight, makes it clearer in the dark night.Features at a glance:- Mechanical keyboard, red switches, total key course is 4 - 5mm, faster response- With LED backlight, makes the night brighter- Concave design, sensitive input, reduces the typing error, gives you a comfortable typing experience- Plug and play, it will not conflict with the computers own numeric area- Compatible with USB 1.1 / 2.0, supports Windows 2000 / XP / ME / Vista / 7 / 8 / 10, Android, Linux, iOSIndependent numeric keypadThe number locking function is independent of any other keyboard that are currently connected. Compare with the other standard keypad, the 22 keys extended some buttons at the top, contain ESC, Tab, back, calculatorExpand your desktop22 keys mechanical numeric keypad is suitable for laptop users, banking, financial securities, business workers or the person who uses with 87 / 82 / 68 / 61 keyboards or other keyboards without numeric section. Small and light, easier for you to carry anywhere Brand: Motospeed Material: ABS Type: Keypad Bluetooth Version: Not Supported Cable Length (m): 1.5M Connection: Wired Interface: USB 2.0 Key Number: 22 Operating voltage: 4.5 - 5V Operation Current: 350mA and less System support: Windows 10,Windows 2000,Windows 7,Windows 8,Windows ME,Windows Vista,Windows XP Keyboard Lifespan ( times): 50 million Response Speed: 100Hz Anti-ghosting Number: 8 Keyboard Type: Mechanical Keyboard Keyboard Switch Type: Red Switch Package size (L x W x H): 15.50 x 10.50 x 4.20 cm / 6.1 x 4.13 x 1.65 inches Package weight: 0.29 kg Product size (L x W x H): 14.10 x 8.60 x 3.60 cm / 5.55 x 3.39 x 1.42 inches Product weight: 0.2525 kg Package Contents: 1 x Keyboard, 1 x Multi-language Manual (Chinese, English, Japanese, Korean, German, Italian, Turkish, Polish, Spanish)