Acer Aspire E1-421 E1-421G E1-431 E1-431G E1-471 E1-471G Internal Laptop Keyboard(Black) vs DILURBAN 3 Colors Back-light 2.4GHZ Wireless Media Keyboard LED Light Air Fly Mouse Remote Control Touchpad Handheld LK07 Smart Connector, Wireless Multi-device Keyboard(Black)