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HMX Cheese vs. HMX FJ400

An in-depth look at the HMX Cheese and the HMX FJ400 switches—which one is the best fit for you?

Overview

When it comes to choosing the right mechanical keyboard switch, the HMX Cheese and HMX FJ400 both offer unique advantages tailored to different typing preferences. The HMX Cheese is celebrated for its unparalleled smoothness and pristine typing experience, providing an ultra-light feel that caters to users who value agility in their keystrokes. With a satisfying clacky, poppy, and crispy sound signature, these switches have become a favorite among those seeking a lively auditory response while typing. On the other hand, the HMX FJ400 strikes a superb balance within the HMX Film switch lineup, featuring a more moderate sound profile that appeals to users who prefer a subtler auditory experience while maintaining a smooth actuation. Each switch has its merits, whether you're drawn to the lightweight agility of the Cheese or the well-rounded performance of the FJ400. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.

By the numbers

Technical specifications

Actuation force

43g

Actuation force

50g

Bottom-out force

46g

Bottom-out force

58g

Pre-travel

2.00 mm

Pre-travel

2.00 mm

Total travel

3.50 mm

Total travel

3.80 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

Ly

Stem material

T2

Top housing material

Nylon

Top housing material

POM

Bottom housing material

Nylon

Bottom housing material

Nylon

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

22mm single-staged spring

Spring

22mm single-stage spring

Housing materials

The HMX Cheese and HMX FJ400 switches feature distinct housing materials that contribute to their overall sound profiles, shedding light on the intricacies of acoustic performance in mechanical switches. The top housing of the Cheese switch is constructed from nylon, a classic material known for its unique acoustic properties. Its medium softness allows it to absorb sound waves effectively, resulting in a deeper and fuller sound profile, particularly when typing. In contrast, the FJ400 employs polyoxymethylene (POM) for its top housing, which also delivers a deep sound but with a unique twist. POM is recognized for its smoothness and rigidity, contributing to a rich yet comparatively muted auditory experience. While both switches lean towards a deeper sound profile, their differing top housing materials create subtle variations in the overall typing experience.

Interestingly, both switches share a nylon bottom housing. This aspect ensures that both the HMX Cheese and HMX FJ400 switches produce a similarly rich, softer sound when bottoming out. Nylon, as a common choice for switch construction, allows for sound absorption, which leads to a squishier, rounder sound upon actuation. Therefore, while the top housings differentiate the two models, the influence of the nylon bottom housing remains uniform across both types, ensuring that whichever switch is employed, users can expect a pronounced fullness in sound. The tactile feel and sound produced when bottoming out remains consistent, reinforcing the enduring acoustic qualities that come with nickel-based switch configurations.

The interaction between the different housing materials reveals how nuanced the sounds produced by mechanical switches can be. The FJ400's POM top housing will offer a slightly different character when it comes to the sound of releasing a key compared to the Cheese’s nylon top housing. The differences in the materials lead to a divergence in how sound resonates at different stages of keypress—resulting in each switch providing a distinctly satisfying experience. Despite the contrast in top housing materials, the solid foundation provided by the nylon bottom housing across both switches guarantees that users are likely to enjoy a consistent auditory performance when bottoming out. Therefore, while comparing and contrasting these switches reveals differences in their upper housings, the aligned characteristics of their bottom housings illustrate a seamless continuity that ensures a fulfilling typing experience.

Weight

The HMX Cheese linear switch and the HMX FJ400 linear switch present notable differences in both actuation force and bottom out force. The Cheese switch features a lighter actuation force of 43 grams, compared to the FJ400's 50 grams, making it more suitable for extended typing sessions or gaming marathons where reduced strain is desired. The bottom out force also reflects a similar contrast; the Cheese's bottom out force is 46 grams, while the FJ400's is heavier at 58 grams. This difference in weight showcases the distinct typing experience each switch offers: the Cheese provides a lighter, more responsive feel, ideal for those who favor ease of use, whereas the FJ400's medium force lends a more substantial tactile experience that might appeal to users looking for more feedback on their keystrokes. Overall, the Cheese is the lighter option, while the FJ400 is the heavier one, and users seeking a comfortable and agile typing experience would likely prefer the Cheese, while those favoring a firmer push would lean towards the FJ400.

Travel distance

When comparing the travel distances of the HMX Cheese linear switch and the HMX FJ400 linear switch, it's clear that they differ in length, with the Cheese featuring a travel distance of 3.5 mm and the FJ400 measuring 3.8 mm. This makes the Cheese the shorter option, catering to users who favor quicker actuation and responsiveness, typical of gamers. In contrast, the FJ400, with its longer travel distance, may appeal to those who prefer a more pronounced feedback and depth when typing, making it feel less abrupt. Ultimately, the choice between these switches boils down to individual preferences regarding travel distance: the Cheese offers a more rapid response, while the FJ400 provides a more traditional and hearty feel.

Price comparison

Which switch is more bang for your buck?

The HMX Cheese has an MSRP of $5.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Cheese for $3.79.

The HMX FJ400 has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the FJ400 for $3.29.

Here at Milktooth, we offer the best prices on switches (on average, 27% lower the competition). In addition, we offer free shipping on orders over $49.00. We also offer free returns and exchanges, so you can shop with guaranteed satisfaction.

That said, while price is an important piece of the puzzle, our opinion is that you should ultimately pick the option that most suits your unique preferences since you’ll be using these switches for years to come. In other words, finding something perfect for you is, in our view, the most important criteria.

Typing experience

In terms of sound, the HMX Cheese linear switches produce a clacky, poppy, and crispy sound signature that many users find satisfying. This characteristic makes them stand out as an engaging choice for those who enjoy auditory feedback while typing. In contrast, the HMX FJ400 linear switches offer a more balanced sound profile, leaning towards a neutral auditory experience that may not provide the same level of excitement but is still pleasant. It's important to note that the overall sound perception of both switches can be influenced by factors such as the choice of keyboard, case material, and keycap design.

When considering the feel of the switches, the HMX Cheese switches are renowned for their unparalleled smoothness, which lends to a pristine typing experience that keeps the user engaged and satisfied. The lightness of these switches, being lighter than 90% of all switches, further enhances their effortless operation. The HMX FJ400, while serving as a middle ground in the HMX Film switch lineup, is designed to provide a balanced and comfortable typing experience, though specific details on its smoothness compared to the Cheese switches are not provided. The Cheese’s ultra-light feel might create a stark contrast to the more moderate feel of the FJ400, catering to different preferences among typists.

In conclusion, both the HMX Cheese and HMX FJ400 linear switches offer unique qualities that cater to different user experiences. The Cheese excels in producing a lively sound and remarkable smoothness, appealing to those who prioritize auditory feedback and light switch action. The FJ400, while less dynamic in sound, presents a balanced experience that maintains comfort and versatility. Ultimately, selecting between these switches will come down to personal preference, with users seeking either a vibrant auditory and tactile response or a more understated and adaptable typing experience.

Conclusion

To wrap up, your choice between the HMX Cheese linear switch and the HMX FJ400 linear switch will significantly depend on your personal typing preferences and intended use. If you’re someone who values an ultra-light switch with exceptional smoothness and a distinctive clacky, poppy sound, the Cheese is likely your ideal match. This switch is perfect for those who enjoy a more playful and engaging typing experience and might prefer a lighter actuation for fast-paced gaming or casual typing. On the other hand, if you're seeking a more balanced typing experience with a subtle yet pleasurable sound profile, the FJ400 is the switch for you. Its medium bottom-out force offers a more robust feedback, making it a suitable choice for those who prefer a firmer touch while typing or for applications that require a bit more resistance. Ultimately, your decision will hinge on whether you prioritize a lighter feel and crisp sound with the Cheese or the balanced feedback and durability that the FJ400 provides.

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