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HMX Poro vs. HMX SU

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

Overview

When it comes to choosing the right mechanical keyboard switch, the HMX Poro and HMX SU linear switches offer unique experiences that cater to different preferences among gamers and typists alike. The Poro switches are celebrated for their silky smooth keystrokes, enhanced further by meticulous lubrication that ensures an effortless glide. This switch provides a satisfyingly poppy and clacky sound profile, thanks to its ultra-light actuation force, making it an attractive option for those who enjoy a lively auditory feedback while typing. On the other hand, the HMX SU switches tout a robust PA12 housing paired with a T5 stem, delivering a relatively deep sound profile that offers a more subdued auditory experience. This could be ideal for users who appreciate a more grounded typing sound combined with the reliability of a well-constructed switch. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.

By the numbers

Poro
SU

$3.50

$2.99 per 10

$3.50

$3.29 per 10

Learn moreLearn more

Technical specifications

Actuation force

45g

Actuation force

45g

Bottom-out force

50g

Bottom-out force

50g

Pre-travel

2.00 mm

Pre-travel

1.80 mm

Total travel

3.70 mm

Total travel

3.60 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Standard

Stem material

Ly

Stem material

T5

Top housing material

Nylon

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

The housing materials of the HMX Poro and HMX SU switches both feature nylon for their top and bottom components, providing a consistent foundation for performance and sound profile across both models. As described, nylon is characterized as a classic switch housing material that contributes to a deeper and fuller sound when typing. The inherent properties of nylon, as a relatively softer plastic, result in sound absorption that diminishes high-frequency noise and leads to a duller, rounder auditory experience. This similarity in using nylon for both the top and bottom housings ensures that users will experience a comparable typing sound profile, regardless of the specific model they choose.

Despite this material unity, it's important to note the potential differences in feel and sound characteristics resulting from varying designs or internal mechanisms within the two switch models. In mechanical switches, the bottom housing tends to have a significant impact on the switch's bottom-out sound and tactile feedback, while the top housing influences the sound when releasing a key. While both switches utilize nylon, if there are any deviations in design—such as variations in the thickness or internal structure—this could create subtle differences in the overall typing experience. However, since both switches employ nylon, the resultant typing sound will generally remain closer to the defined sound profile that nylon provides, leading to a similar auditory experience for users.

In conclusion, the HMX Poro and HMX SU share a key similarity in their use of nylon for both top and bottom housings, providing users with a consistent sound profile characterized by a deeper and fuller tonal quality. Even if there are particular design variations that could impact the feel and sound during key presses and releases, the inherent properties of nylon work to ensure that both switch models will elicit akin auditory responses. Therefore, users seeking a switch that emphasizes a warm sound will find both the Poro and SU to be suitable options, yielding similar results owing to their nylon construction.

Weight

The HMX Poro linear switch and the HMX SU linear switch exhibit identical actuation and bottom out forces, both measuring 45 grams for actuation and 50 grams for bottoming out, categorizing them both as light switches. This similarity means that users can expect a comparable typing experience in terms of keystroke sensitivity and feedback. The lighter weight of these switches is advantageous for those who prefer a more effortless typing experience, making them ideal for long hours at work or extended gaming sessions. However, for users who gravitate towards a stronger push feel for a more substantial typing experience, these switches may not meet their preferences, as the lighter forces may feel less tactile compared to heavier alternatives. Overall, since the actuation and bottom out forces are the same for both switches, users can anticipate similar performance characteristics with either choice.

Travel distance

The HMX Poro linear switch has a travel distance of 3.7 mm, while the HMX SU linear switch features a slightly shorter travel distance of 3.6 mm. This indicates that the Poro switch provides a more pronounced depth when pressed, which may appeal to users who enjoy a more substantial key feel. In contrast, the SU switch, with its 3.6 mm travel distance, offers a slightly more responsive experience, and may benefit gamers looking for quicker actuation during gameplay. Both switches are close in travel distance, but for those who prefer a heartier feel when typing, the Poro will be the better choice, whereas the SU may suit those who prioritize faster response times due to its shorter travel distance.

Price comparison

Which switch is more bang for your buck?

The HMX Poro has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Poro for $2.99.

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 HMX Poro linear switch offers a poppy and clacky sound profile that can be both pleasing and engaging, making it a joy to type on for those who appreciate auditory feedback. This sound is enhanced by the ultra-light actuation force, contributing to a lively keystroke experience. In contrast, the HMX SU linear switch produces a subtle yet relatively deep sound profile, which may appeal to users who prefer a more subdued auditory experience. It's worth noting that the ultimate sound may vary depending on the keyboard's design and the type of keycaps used, but these characteristics give a general idea of their distinct auditory footprints.

In terms of feel, the HMX Poro linear switch is known for its exceptionally smooth keystrokes, thanks in large part to meticulous lubrication that ensures an effortless glide. This results in a tactile experience that is comfortably light and responsive. On the other hand, the HMX SU linear switch, equipped with a full PA12 housing and T5 stem, provides a different sensation that, while less explicitly described, is likely to offer its own unique, balanced feel. The absence of detailed descriptions means that the exact nuances of the SU's tactile response may remain somewhat ambiguous compared to the Poro's well-known silkiness.

In conclusion, both the HMX Poro and HMX SU linear switches have their distinct qualities that cater to different preferences in sound and feel. The Poro switches are ideal for those who enjoy a lively auditory experience combined with a smooth keystroke, while the SU switches may attract those seeking a deeper, more subdued sound with potentially unique tactile characteristics. Ultimately, both switches provide high-quality experiences that can satisfy a range of typing or gaming needs, allowing users to find a match that resonates with their personal preferences.

Conclusion

To conclude, choosing between the HMX Poro linear switch and the HMX SU linear switch ultimately depends on your preferences for sound and feel. If you value a silky smooth keystroke with an engaging, poppy acoustic profile, the Poro is an excellent choice. Its light actuation and thoughtfully lubricated mechanism offer a delightful typing experience that is both enjoyable and efficient, making it ideal for fast-paced typing or gaming where precision is key. On the other hand, if you prefer a subtle yet deeper sound that provides a slightly more pronounced tactile depth, the SU may be more suited to your tastes. Its full PA12 housing and T5 stem contribute to a solid and satisfying feel that is ideal for those who might appreciate a more robust acoustic presence while still enjoying a relatively light actuation force. Ultimately, consider your priorities in sound and feel when making your decision—whether you seek the effortless glide and pop of the Poro or the deeper resonance and stability offered by the SU.

Mentioned in this article

Poro

HMX Poro Linear

$3.50

$2.99 per 10

Learn more
SU

HMX SU Linear

$3.50

$3.29 per 10

Learn more