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HMX

HMX X 80 RETROS KD400 Linear Switch Factory Lubed (35PCS)

5.0'
$12.00 USD
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Spring Weight: 46g Bottom Out X35 in KD Packaging
HMX X 80 RETROS KD400 Linear Switch Factory Lubed (35PCS)
$12.00 USD
46g Bottom Out X3...

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HMX KD400 Linear Switch

The HMX KD200 switch now has its successor. The KD400 switches are a new clack king and they are manufactured by HMX using the newest molds and newest materials. 

The KD400 is the first-ever HMX switch that uses the M1 strengthened POM stem and the N3 bottom housing. When they collide, it creates a unique and clacky sound profile. It is reminiscent of the classic HMX clack, but there is something more to it.

Mold-wise, KD400 uses the L3 mold sets with a slightly larger gap between the stem and the top housing, allowing for a super smooth travel.

These switches are a unique existence among the HMX linear lineup, and a must try if you are a clack lover.

 

 

Specs

1 quantity = 35 switches in one packaging box

Switch Type: Linear

Designer: 80 Retros

Mold: New (L3)

Manufacturer: HMX

Stem material: Strengthened POM (M1)

Top Housing: Modified PA12

Bottom Housing: N3 (PA66 + PBT)

Operating Force: 40g/45g/50g/57g

Bottom-out Force: 46g/50g/55g/63g

Pre-travel: 1.2mm

Total Travel: 3.5±0.2mm

Spring: KOS single-stage extended

Factory Lubed: Yes! Stem legs and stem sliders are covered with a very thin coat of 205g0. The spring and leaf are lubed with dry film.
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Customer Reviews

Overall rating: 5.0 / 5 from 12 reviews.

Customer video review of HMX X 80 RETROS KD400 Linear Switch Factory Lubed (35PCS)

Amazing i have full review on them on my youtube channel please visit guys https://www.youtube.com/@Jtechlabreviews

Ahmad A. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 Linear Switch Factory Lubed (35PCS)

Ordered those switches from UniKeys and though shipping got delayed (so I haven't tested them yet!), the buying experience was top-tier. Huge thanks to Dashan for being so supportive. UniKeys is definitely the best place to buy mechanical keyboard switches!

Ahmad A. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

These are great. I’ve used so many hmx switches and so far these are my favorite. I have replaced my Geon F1’s and Glare65’s switches with these switches and they sound flawless and the factory lubing is consistent and well done. The kd200 and hmx retro t’s I had before in these boards were also great, but these kd400 are even better.

Griffin H. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

Again my favorite switch , different keyboard !

Lessard G. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

My favorite switch!

Lessard G. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

Awesome switch ! I got the 63g and i ouvert it , so clacky!

Lessard G. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

A modern clacky switch done right. Smooth and well-balanced switch.

Linda T. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

Super Clacky, I have the 63g bottom out version and they are very nice to type on, probably my favourite heavy linear for 2026 so far 😀

Aidan P. 5/5 Verified

Customer video review of HMX X 80 RETROS KD400 LINEAR SWITCH FACTORY LUBED (35PCS)

Good!!!

満春 岩. 5/5 Verified

Awesome switches. I can only compare them to the Xinhai and Oil Kings, and I think HMX has once again brought us a killer switch. The KD400 feel super smooth and have a very crisp sound. They're also a little louder compared to the Xinhai, but I wouldn't expect a huge difference. All in all very well recommended.

Dennis P. 5/5 Verified

Great product

Ryan M. 5/5 Verified

Banger switch, og hmx clack in new molds

Ray C. 5/5 Verified

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