HMX x 80 Retros KD400 Linear
Compare specs
Linear,
Long pole,
Factory lubed,
5-Pin,
Nylon top,
POM stem

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| HMX Yogurt S Linear | HMX x 80 Retros KD400 Linear | HMX Iris Linear |
80 Compared with medium linear switches Overall / Value 80.1Materials 76.5Finish 83.9![]() | 79 Compared with medium linear switches Overall / Value 79.3Materials 76.5Finish 83.9![]() | 90 Compared with medium linear switches Overall / Value 89.5Materials 90.4Finish 83.9![]() |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 0.0 stars (0 reviews) |
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Compared with medium linear switches
| Compared with medium linear switches
| Compared with medium linear switches
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Name HMX Yogurt S Linear | Name HMX x 80 Retros KD400 Linear | Name HMX Iris Linear |
Release year 2026 | Release year 2026 | Release year 2026 |
Switch type Linear | Switch type Linear | Switch type Linear |
Factory lubed | Factory lubed | Factory lubed |
Profile Standard profile | Profile Standard profile | Profile Standard profile |
Actuation force 45g | Actuation force 57g | Actuation force 45g |
Bottom out force 53g | Bottom out force 63g | Bottom out force 52g |
Pre travel 2mm | Pre travel 1.2mm | Pre travel 2mm |
Total travel 3.5mm | Total travel 3.5mm | Total travel 3.6mm |
Pins 5-Pin | Pins 5-Pin | Pins 5-Pin |
Magnetic Hall Effect | Magnetic Hall Effect | Magnetic Hall Effect |
Top Housing Material Nylon, PA12 | Top Housing Material Nylon, PA12 | Top Housing Material Nylon, PA12 |
Bottom Housing Material - | Bottom Housing Material - | Bottom Housing Material - |
Stem Material POM | Stem Material POM | Stem Material UPE, PTFE |
Sound profile Clacky | Sound profile Clacky | Sound profile Deep |
Spring type - | Spring type Standard | Spring type - |
Spring length 22mm | Spring length 22mm | Spring length 18mm |
Spring material Stainless Steel | Spring material Stainless Steel | Spring material Stainless Steel |
Double stage | Double stage | Double stage |
Long pole | Long pole | Long pole |
Dust proof | Dust proof | Dust proof |
Water resistant | Water resistant | Water resistant |
Weight - | Weight - | Weight 3g |
This linear switch suits users who want a smooth keystroke with a distinctively bright and loud sound. It fits typists or gamers who prefer a sharper auditory feedback without tactile bumps. The switch is designed to deliver a more aggressive clack compared to earlier versions, making it less ideal for quiet environments.