The HMX Silent Sakura switch is the first silent HMX linear switch that I know of. According to Mage Studio, these switches come with a great balance between being quiet and having a great typing feel; They don't feel as mushy as most silent switches there are, and the bottom-out is very comfy. They might not be the quietest silent switch, but they are one of the best silent switches to type on.
1 quantity = 10 switches
Switch Type: Silent Linear
Designer: Mage Studio
Manufacturer: HMX
Stem material: POM
Top Housing: PA12
Bottom Housing: Modified PC
Operating Force: 45±2g
Bottom-out Force: 53±2g
Pre-travel: 2.0mm
Total Travel: 4±0.3mm
Spring: 22mm KOS single-stage extended
Factory Lubed: Yes! mixed GPL105&GPL205 on leaf spring, stem feet, and bottom housing rails.
