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HMX FJ400 Linear Switch Factory Lubed Edition (10PCS)

HMX FJ400 Linear Switch Factory Lubed Edition (10PCS) - Main image
$8.58 $12.25 In stock

Category: Switch

The FJ 400 switch is one of the HMX Film switches. Among the film Switch series, FJ400 is the one with a medium clack sound. It also has a T series stem, but the P2 bottom housing which you see on Cloud switches, generates a clacky but full bottom-out sound. Like the Classic and KD200 switches, FJ400 switches are also made using HMX's newest stem and bottom housing molds. The new molds come with a refined typing feel.

The Film switches from most clacky to least clacky: kd200-fj400-1989

1 quantity = 10 switches 

Switch Type: Linear

Designer: 80 Retros

Manufacturer: HMX

Stem material: T2

Top Housing: PC

Bottom Housing: P2

Operating Force: 50±2g

Bottom-out Force: 58±2g

Pre-travel: 2.0mm

Total Travel: 3.8±0.2mm

Spring: 22mm KOS single-stage extended

Factory Lubed: Yes! mixed GPL105&GPL205 on leaf spring, stem feet, and bottom housing rails.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Edward R. ★★★★★

Finally found switches that aren't too loud but still have that satisfying feedback. The P2 bottom housing really gives them a solid, consistent feel when typing.

Richard Y. ★★★★★

The medium clack sound is exactly what I was hoping for, and the P2 bottom housing feels surprisingly solid for a film switch. I've been using them for a few days and they're smooth right out of the box without any extra work.

Joseph ★★★★★

The factory lubing on these is nicely consistent, no spring crunch at all. They feel smooth and stable right out of the bag, perfect for a silent build without losing that satisfying medium clack.