The Gateron Magnetic Jade Sapphire HE U Rail Switch is a premium linear Hall Effect switch that combines smooth performance with cutting-edge magnetic sensing technology. With a medium-light 36gf actuation force and custom spring, these switches deliver balanced typing that's comfortable for both extended gaming sessions and long work days. What makes the Jade Sapphire HE special is its Hall Effect technology with U Rail design that uses magnetic sensing instead of traditional mechanical contacts - this means you get freely adjustable pre-travel distance, so you can dial in exactly how sensitive you want your keys to be. The 3.5mm total travel keeps things snappy and responsive, perfect for fast-paced gaming or rapid typing. Built with a POM stem, PC upper housing, and PA12 base, these switches are engineered for serious durability with an impressive 150 million cycle lifespan - basically they'll outlast multiple keyboard builds without any performance degradation. They come pre-lubed from the factory for buttery-smooth operation right out of the box, saving you hours of manual work. The magnetic flux ranges from 120GS at rest to 700GS at bottom-out, giving compatible PCBs precise analog control over actuation. With 2-pin design and SMD LED support, they work perfectly with RGB lighting setups. Perfect for both office productivity and competitive gaming, the Jade Sapphire HE U Rail switches deliver that premium linear feel with the flexibility and longevity that only Hall Effect technology can provide.