Details 1.This link is only the shaft and switches for mechanical keyboard,no keyboard included.There is no 5 feet options. 2.It can support both normal RGB and underglow SMD. Gateron switches Red black white yellow switches are linear switches moving straight up and down without any additional tactile feedback or loud clicking noise.For operating force,Black>Yellow>Red>White. Gateron brown switches are tactile and non-clicky,between red and blue handle feeling.It's both good for gaming and typing which depends your preference. Gateron Blue and green shaft is tactile and clicky,green is stiffer version of Blue. Peak force Clear-Linear 35g Red-Linear 45g Yellow-Linear 50g Black-Linear 55g Brown- Tactile 45g Blue - Clicky 55g Green-Clicky 80g