HMX FJ400 vs. HMX KD200
An in-depth look at the HMX FJ400 and the HMX KD200 switches—which one is the best fit for you?
Overview
When it comes to mechanical keyboards, selecting the right switch can significantly enhance your typing experience, and two noteworthy options in the HMX lineup are the FJ400 and KD200, both categorized as linear switches. The HMX FJ400 strikes a balance with its moderate sound profile, making it an excellent choice for those who desire a quieter typing experience without sacrificing performance. On the other hand, the HMX KD200 stands out as the clackiest switch in the lineup, appealing to users who enjoy a more pronounced auditory feedback while typing. Both switches offer unique benefits depending on your preferences—whether you prioritize a serene environment or a more engaging tactile experience. 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
50g
Actuation force
45g
Bottom-out force
58g
Bottom-out force
50g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.80 mm
Total travel
3.50 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T2
Stem material
Ly
Top housing material
POM
Top housing material
Nylon
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
22mm single-stage spring
Housing materials
When comparing the housing materials of the HMX FJ400 and the HMX KD200, there are notable distinctions in the top housings with the FJ400 utilizing POM and the KD200 featuring nylon. The POM housing of the FJ400 is known for creating an exceptionally pleasing, unique sound profile that leans towards a deeper tone while being relatively muted. This contrasts with the nylon housing of the KD200, which, while also capable of producing a deeper sound, does so through a design that emphasizes resonance. Nylon, being a softer plastic, absorbs sound more effectively, resulting in a fuller, rounder auditory experience that can be perceived as duller in comparison to POM's crisper character.
In terms of their bottom housings, however, the FJ400 and KD200 align closely due to both utilizing nylon. The characteristics of nylon in the bottom housing mean that both switches will produce a deeper and fuller sound profile. The softer nature of nylon, which absorbs sound better than harder plastics, contributes to a smoother experience when bottoming out, allowing for a satisfying and comfortable key press. Thus, while the KD200’s top housing offers a more resonant sound, the similarity of nylon in the bottom housing ensures that both switches maintain a consistent auditory experience beneath one's fingers.
Ultimately, the differences in housing materials between the FJ400 and KD200 can have distinct effects on user experience, particularly in the top housing where sound is notably affected. However, with both models sharing nylon as the bottom housing material, they will offer comparable results in their tactile feedback and tonal qualities when pressed down. The interplay of how each housing contributes to the overall sound and feel when engaging with the switches highlights the nuanced design aspects that make both models appealing to enthusiasts who appreciate sound depth and switch dynamics in their keyboards.
Weight
When comparing the HMX FJ400 linear switch and the HMX KD200 linear switch, there are notable differences in both actuation force and bottom out force. The FJ400 requires a slightly heavier actuation force of 50 grams and has a bottom out force of 58 grams, classifying it as a medium switch that offers a more substantial typing feel. In contrast, the KD200 is lighter, with an actuation force of 45 grams and a bottom out force of 50 grams, making it a better option for those who prefer easier key presses and prolonged typing sessions. This difference in force results in the KD200 being more suitable for users looking for a lighter typing experience, while the FJ400 may appeal to those who enjoy a firmer resistance that can enhance tactile feedback. Overall, the FJ400 is the heavier switch, while the KD200 is the lighter switch, providing a distinct choice based on individual preferences for actuation dynamics.
Travel distance
When comparing the travel distances of the HMX FJ400 linear switch and the HMX KD200 linear switch, the FJ400 has a travel distance of 3.8 mm, whereas the KD200 measures 3.5 mm. This makes the KD200 the shorter option, offering a quicker actuation that can be appealing to gamers looking for faster response times. On the other hand, the FJ400, with its longer 3.8 mm travel distance, may provide a more substantial tactile experience, which some users prefer for a more deliberate typing feel. Ultimately, the choice between the two switches will depend on individual preferences regarding responsiveness versus depth; those who favor a faster actuation should opt for the KD200, while those who appreciate a more reassuring depth may lean towards the FJ400.
Price comparison
Which switch is more bang for your buck?
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.
The HMX KD200 has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the KD200 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 FJ400 linear switch offers a balanced sound profile that makes it suitable for a wide range of typing and gaming scenarios. It strikes a harmonious middle ground, allowing for a pleasing audio experience without being overly loud or intrusive. On the other hand, the HMX KD200 linear switch stands out as the clackiest member of the HMX Film switch lineup, delivering a more pronounced auditory experience that can be truly satisfying for those who enjoy a more vibrant sound while typing. However, it’s important to remember that the overall sound will also be influenced by your choice of keyboard and keycaps, so the individual auditory experience may vary.
When examining the feel of these two switches, the FJ400 provides a smooth and consistent experience that is highly regarded for its reliability during prolonged use. Users will appreciate the subtle feedback it offers without any interruptions, making it a great option for both casual typing and competitive gaming. Conversely, the KD200 is designed to deliver a more tactile sensation, enhancing the typing experience with a noticeable feedback that caters to those who prefer to feel more connected to each keystroke. This tactile responsiveness can lead to a more engaging typing experience, especially for gamers or typists who value that added feedback.
In conclusion, while both the HMX FJ400 and KD200 linear switches have their unique attributes, the FJ400 provides a more subdued yet balanced sound and smooth feel ideal for long sessions, whereas the KD200 offers a lively, clacky sound profile and a tactile feel that can enhance the overall typing experience. Ultimately, your choice between the two should depend on whether you prioritize a quieter, more controlled sound or a lively, tactile engagement while typing. Each switch can deliver enjoyable results, making them appealing options for newcomers venturing into the world of mechanical keyboards.
Conclusion
To conclude, when deciding between the HMX FJ400 and the HMX KD200 linear switches, your personal preferences and typing style will guide you toward the right choice. If you prefer a balanced sound profile and a medium bottom-out force of 58 grams, the FJ400 is likely your best option, offering a satisfying feel that strikes a good balance for both typing and gaming. On the other hand, if you enjoy a lighter touch with a bottom-out force of just 50 grams and appreciate a pronounced clacky sound, the KD200 will serve you well, especially if you enjoy a more engaging auditory feedback while typing. Ultimately, consider your typing habits—if you type for long periods and prefer a softer touch, the KD200 might be the way to go; however, if you seek a more sturdy and reliable switch for diverse tasks, the FJ400 stands out as a versatile choice. In the end, your individual preferences and use cases will determine which switch enhances your mechanical keyboard experience the most.
Mentioned in this article
