A Keyboard is perhaps the most important input device particularly when you play games on your computer for long hours.
When choosing a gaming keyboard you have to consider some important factors such as:
If you are going to use your computer for a long period of time you have to buy a keyboard which is ergonomically designed to avoid damage to your wrist. Most of the gaming keyboards have a good ergonomic design with extra features for gamers.
Some keyboards have a small LCD screen by which the users can view game stats, create and keep track of important system information without leaving the game.
Lighted or Backlit Keys:
First you need to decide if you need a lighted, or backlit gaming keyboard. The advantage of a backlit keyboard is that it makes it easy to play in the dark and looks pretty fancy in darker areas.
Having a wireless keyboard can be more convenient than a corded one, you don't have to tolerate the mess of wiring and also you can maintain required distance between the screen and the seating, however, their reliance on radio waves to transmit the signal to the receiver causes delay (or lag) to the cursor response. Modern wireless keyboards are almost lag free, however, if you really want the absolute fastest response then you should stick to a corded keyboard. If you are going to buy a wireless keyboard then consider the battery life and replacing periods of your battery that will cost you more money.
Extra Gaming Keys:
Some keyboards have extra programmable keys for gamers who tend to play complex games with lots of different key set-ups.