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HMX Blue Topaz vs. Gateron Box CJ

An in-depth look at the HMX Blue Topaz and the Gateron Box CJ switches—which one is the best fit for you?

Overview

The HMX Blue Topaz and the Gateron Box CJ are both linear mechanical keyboard switches that offer unique characteristics to suit different preferences. The Blue Topaz stands out for its exceptionally smooth actuation and lightweight feel, making typing a breeze with a clacky sound signature that adds to the overall user experience. On the other hand, the Box CJ incorporates elements of speed switches for rapid response, providing higher-pitched clacks and an incredibly smooth push feel. While the Blue Topaz is easy to press and clacky, the Box CJ is categorized as clacky, mild, neutral, and chirpy. Both switches offer distinct advantages depending on individual preferences and typing styles. 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

40g

Actuation force

45g

Bottom-out force

48g

Bottom-out force

57g

Pre-travel

2.00 mm

Pre-travel

2.00 mm

Total travel

3.90 mm

Total travel

4.00 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

Ly

Stem material

POM

Top housing material

Polycarbonate

Top housing material

Polycarbonate

Bottom housing material

Nylon

Bottom housing material

Nylon

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

22mm single-stage spring

Spring

15.4mm single-stage spring

Housing materials

In comparing the housing materials of the HMX Blue Topaz and the Gateron Box CJ, it is evident that both switches utilize polycarbonate for their top housing. Polycarbonate is known for creating a sharper, higher-pitched, and crisper sound profile due to its relatively stiffer nature, which leads to a more clear and resonant sound. Additionally, the translucency of polycarbonate makes it ideal for switches that incorporate RGB lighting. This commonality in housing material suggests that users can expect similar sound profiles and aesthetics from both switches when it comes to their top housing.

However, the key point of differentiation between the two switches lies in their bottom housing material. The Blue Topaz features a nylon bottom housing, which is known for eliciting a deeper and fuller sound profile compared to the Box CJ's polycarbonate bottom housing. Nylon is a softer plastic that absorbs more sound than harder plastics, resulting in a duller and rounder sound when typing on switches that use this material. This contrast in bottom housing materials showcases the potential for a distinct typing experience between the Blue Topaz and the Box CJ, with the bottom housing playing a significant role in the overall sound and feel of the switch.

It is important to note that the qualities of the housing materials for each switch, whether polycarbonate or nylon, will impact the overall typing experience in different ways. While the top housing influences the sound when a key is released, the bottom housing has more of an impact on the bottom-out sound and feel when a key is pressed. Therefore, understanding the specific characteristics of the housing materials used in each switch can help users determine which one aligns more closely with their preferences in terms of sound profile, feel, and aesthetics.

Weight

The HMX Blue Topaz linear switch and the Gateron Box CJ linear switch have some differences in their actuation and bottom out forces. The Blue Topaz has a lighter actuation force of 40 grams compared to the Box CJ's 45 grams, making the Blue Topaz easier to trigger keystrokes with. However, when it comes to bottom out force, the Blue Topaz requires 48 grams of force while the Box CJ needs 57 grams, making the Blue Topaz lighter to press down completely. This means that the Blue Topaz provides a lighter typing experience overall compared to the Box CJ, which offers a slightly more substantial push feel. For those who prefer a lighter typing experience for longer periods of time, the Blue Topaz may be the better option. On the other hand, those who enjoy a stronger push feel may prefer the Box CJ for a more satisfying typing experience.

Travel distance

The HMX Blue Topaz linear switch has a travel distance of 3.9 mm, which is slightly shorter than the Gateron Box CJ linear switch with a travel distance of 4 mm. While both switches are relatively close in their travel distances, the Blue Topaz offers a slightly shorter press for those looking for faster response times in their keystrokes. On the other hand, the Gateron Box CJ linear switch provides a slightly longer travel distance, which may appeal to users who prefer a deeper feeling when pressing down on a key. Ultimately, the decision between the two switches will come down to personal preference and the desired typing experience.

Price comparison

Which switch is more bang for your buck?

The HMX Blue Topaz has an MSRP of $4.00 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Blue Topaz for $3.49.

The Gateron Box 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 Box CJ for $5.35.

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, both the HMX Blue Topaz and the Gateron Box CJ switches are described as having a clacky sound profile, providing a sharp and snappy auditory experience with a crisp and bright tone. Additionally, the Box CJ switch is noted for its chirpy nature, adding a unique acoustic signature to its sound. Keep in mind that the sound of a switch can also be influenced by factors such as the keyboard's build and keycaps used, so individual experiences may vary.

Moving on to the feel of these switches, the HMX Blue Topaz is praised for its easy-to-press quality, offering minimal resistance during key presses and a light actuation force that makes typing effortless and comfortable. On the other hand, the Gateron Box CJ switch is described as mild, providing a gentle typing experience that falls within a safe, middle-ground zone in terms of sound and feel. Both switches aim to enhance the typing experience by offering smooth and responsive keystrokes.

In conclusion, both the HMX Blue Topaz and Gateron Box CJ switches have their unique strengths when it comes to sound and feel. While the Blue Topaz is known for its lightweight and smooth actuation paired with a clacky sound, the Box CJ stands out with its rapid response and higher-pitched clacks. Ultimately, the choice between these switches will depend on personal preference and typing style, but rest assured that you can expect a satisfying typing experience with either option.

Conclusion

In closing, when choosing between the HMX Blue Topaz linear switch and the Gateron Box CJ linear switch, consider the bottom out force, sound, and feel preferences that best suit your typing style and preferences. If you prefer a lighter actuation force and smooth keystrokes with a visually appealing and clacky sound signature, the Blue Topaz may be the ideal choice for you. On the other hand, if you are seeking a slightly heavier actuation force with swift characteristics and a higher-pitched clack sound, coupled with a smooth push feel, the Box CJ could be the optimal selection. Ultimately, the decision between these two switches ultimately comes down to personal preference and typing experience desired.

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