Gateron CJ vs. HMX SU
An in-depth look at the Gateron CJ and the HMX SU switches—which one is the best fit for you?
Overview
When it comes to mechanical keyboard switches, the Gateron CJ and the HMX SU stand out as two noteworthy linear options, each offering distinct characteristics that cater to different typing preferences. The Gateron CJ is celebrated for its unique presentation of linear feel, providing typists with a high-pitched clack and an impressively smooth keystroke, categorized by descriptors such as 'Chirpy' and 'Thocky.' This makes the CJ an appealing choice for those who enjoy a tactile yet unobtrusive typing experience. On the other hand, the HMX SU features a full PA12 housing coupled with a T5 stem, resulting in a more subdued and deep sound profile. While both switches deliver the linear smoothness enthusiasts seek, they offer contrasting auditory experiences—one being bright and chirpy, the other deep and mellow. Ultimately, your choice may boil down to personal preference in sound and feel. 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
60g
Bottom-out force
50g
Pre-travel
2.00 mm
Pre-travel
1.80 mm
Total travel
4.00 mm
Total travel
3.60 mm
Factory lubed
No
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
POM
Stem material
T5
Top housing material
Proprietary INK blend
Top housing material
Nylon
Bottom housing material
POM
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
Gold-plated
Spring
22mm single-stage spring
Housing materials
When comparing the housing materials of the Gateron CJ and the HMX SU switches, notable differences arise in their respective compositions and the resulting auditory profiles. The Gateron CJ features a proprietary INK blend top housing, which delivers a pointed and high-pitched sound that is often described as "clacky." In contrast, the HMX SU utilizes nylon for its top housing, which promotes a deeper, fuller sound due to its inherent softness that absorbs sound waves more effectively. This contrast highlights how the material selection significantly influences the sound characteristics, providing users with distinctly different auditory experiences when typing on each switch.
Looking closely at the bottom housing, the Gateron CJ employs POM, known for generating a unique and pleasant deeper sound profile that is relatively muted. On the other hand, the HMX SU opts for nylon for its bottom housing, which similarly contributes to producing a deeper and rounder sound profile. Both materials are softer compared to traditional plastics, which helps absorb sound and mitigate harshness. Consequently, despite the differences in top and bottom housing materials, both switches share a common trait of producing a satisfying sound experience, although the exact tonal qualities differ based on the specific characteristics of each housing material.
Ultimately, the unique interplay between the top and bottom housing materials in both switches results in distinctive yet complementary auditory and tactile experiences. If the housing types were reversed—for example, if both switches had nylon top and POM bottom or vice versa—the resulting sound would still reflect the individual qualities of the materials used. This illustrates how the configuration of housing materials can be strategically mixed to harness diverse sound profiles while maintaining some level of consistency across different switches. The Gateron CJ and HMX SU exemplify this concept, with each switch offering a tailored experience influenced by their respective materials.
Weight
When comparing the actuation force and bottom out force of the Gateron CJ linear switch and the HMX SU linear switch, we can see distinct differences in their characteristics. The Gateron CJ has an actuation force of 50 grams and a bottom out force of 60 grams, indicating a medium resistance that provides a balanced feel during typing. In contrast, the HMX SU offers a lighter actuation force of 45 grams and a bottom out force of 50 grams, making it easier to press and more suitable for extended typing sessions or gaming without excessive finger fatigue. Consequently, individuals who prefer a lighter switch for comfort would lean more towards the HMX SU, while those looking for a more substantial typing experience might opt for the Gateron CJ. Ultimately, the CJ is heavier overall due to its greater actuation and bottom out forces, whereas the SU caters to those seeking a lighter touch.
Travel distance
The Gateron CJ linear switch features a travel distance of 4 mm, while the HMX SU linear switch has a slightly shorter travel distance of 3.6 mm. This means that when actuating the CJ switch, users will experience a more pronounced depth, which can provide a more substantial tactile feedback that some users prefer. On the other hand, the SU switch's shorter travel distance may appeal to gamers and fast typists who prioritize quicker actuation and response times. While both switches offer linear characteristics, the CJ switch is better suited for those who appreciate a deeper key press, whereas the SU switch caters to those who favor a more responsive feel. Overall, the CJ is the longer travel option, and the SU is the shorter one.
Price comparison
Which switch is more bang for your buck?
The Gateron CJ has an MSRP of $6.00 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the CJ for $5.35.
The HMX SU has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the SU 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
When it comes to sound, the Gateron CJ linear switches provide a unique auditory experience characterized by a distinct chirpy quality. This creates a higher-pitched clacking sound that stands out in the realm of linear switches, offering an engaging acoustic signature that can enhance the typing experience. Additionally, the CJ switches are noted for their neutral sound profile, making them suitable for various environments, whether for work or home use. While they may also have lower-pitched and thocky qualities, providing richness and depth, the HMX SU linear switches do not have a defined sound profile available for comparison. Therefore, the CJ's sound characteristics are more distinct and varied, highlighting their specific design.
In terms of feel, the CJ linear switches deliver a mild typing experience that is gentle and approachable for most users. The smooth push feel enhances the overall pleasantness of typing, making it suitable for both beginners and seasoned typists. This milder feedback means users can type for extended periods without feeling fatigued, while maintaining a satisfying experience. Currently, the feel of the HMX SU switches remains unreported, leaving a gap in assessing how they compare in this aspect.
To summarize, the Gateron CJ linear switches excel in providing a unique sound profile that is both engaging and versatile, while offering a mild and smooth typing experience that caters to a wide range of users. In contrast, the HMX SU linear switches have not had their sound or feel publicly detailed, making it challenging to directly compare them. If you're drawn to the CJ switches, you'll appreciate their combination of chirpy highs and a gentle tactile feedback that caters to a pleasant typing experience, whereas the SU's offerings remain a mystery until further information is available.
Conclusion
To conclude, when deciding between the Gateron CJ linear switch and the HMX SU linear switch, your choice should primarily hinge on your preferences for both typing feel and sound. If you lean toward a medium actuation force and enjoy a unique typing experience characterized by chirpy, thocky sounds, the CJ is likely your best bet. Its higher-pitched clack and impossibly smooth feel cater well to those who appreciate a more dynamic auditory experience while typing. On the other hand, if you prefer a lighter touch and a more subdued sound profile, the HMX SU might be the ideal choice for you. With its light 50-gram bottom-out force, it offers a gentle typing experience, which could be more comfortable for extended use. Ultimately, your personal style and how you intend to use your keyboard—whether for gaming, typing, or general use—will guide you to the switch that best enhances your experience.
Mentioned in this article
