Where cordless operation is concerned, gamers are the main holdbacks - they continue to believe firmly that latency time is not as good as with a corded mouse or keyboard. To address this, for its LX series, Logitech uses a technology called Fast RF. It uses the same frequency band as other wireless peripherals, 27 MHz, but takes full advantage of the bandwidth available at that frequency. This means that twice the amount of data can be sent, which means that coordinates can be refreshed twice as quickly.



Link: Tom's Hardware