Adjustable actuation keyboards — the ones that let you manually adjust how light or hard you need to push to trigger a keypress — are all the rage for PC gamers right now. Wanna see what all the hype is about? Then head over to Woot, where you can grab a Razer Huntsman V2 Analog Gaming Keyboard for just $80. That’s a whopping $170 off its original price. The Huntsman V2 Analog uses optical switches that detect keypresses via beams of light instead of mechanically closing an electrical circuit. Based on how much light is blocked, it can determine how far you’ve pressed a particular key and hold…