A4tech B840 Full Light Strike Gaming Keyboard

Specification:
Brand: A4Tech
Model: B840
Connector: USB
Key Response: 0.2ms
Key Style: Optic switch
Hotkey: Multimedia hotkey
Water-Resistant: Spill-resistant
Backlit Brightness: Adjustable
Gaming Keycaps: 8 Silicon keycaps
Anti-ghosting Key: 100% Anti-ghosting key
Backlit: Neon Glare
Cable Length: 1.8 m
Key Life: Up to 100 million keystrokes
Space-Bar: Screw enhanced space-bar
System Requirements: Windows XP/ Vista/ 7/ 8 /8.1 / 10 or later