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TTC Iron vs. HMX Poro

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

Overview

When it comes to selecting a mechanical keyboard switch, the choice often comes down to personal preference, and two noteworthy contenders in the linear switch category are the TTC Iron and the HMX Poro. The TTC Iron is celebrated for its distinct clacky sound signature, which adds a satisfying auditory element to every keystroke. This switch is notably light and features buttery smooth travel, making it a great option for both avid typists and casual users who appreciate a blend of precision and enjoyment in their typing sessions. In contrast, the HMX Poro offers an incredibly silky experience, as each switch is meticulously lubricated to provide an effortless glide. Its lightweight actuation force also contributes to a lively poppy feedback, pairing well with its own distinct clacky sound profile. While both switches cater to fans of smooth linearity, the TTC Iron leans towards an engaging auditory experience, whereas the HMX Poro focuses on the ultimate smoothness in feel. Despite these differences, both switches present compelling features that cater to varied 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

Iron
Poro

$5.40

$4.30 per 10

$3.50

$2.99 per 10

Learn moreLearn more

Technical specifications

Actuation force

41g

Actuation force

45g

Bottom-out force

50g

Bottom-out force

50g

Pre-travel

1.40 mm

Pre-travel

2.00 mm

Total travel

3.80 mm

Total travel

3.70 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Partial box

Stem construction

Standard

Stem material

POM

Stem material

Ly

Top housing material

POM

Top housing material

Nylon

Bottom housing material

POM

Bottom housing material

Nylon

Mount type

Plate (3-pin)

Mount type

PCB (5-pin)

Spring

22mm single-stage spring

Spring

22mm single-stage spring

Housing materials

The housing materials of the TTC Iron and the HMX Poro switches provide fascinating insights into how different compositions can influence the acoustic properties and tactile feedback of keyboard switches. Both switches utilize complementary profiles to deliver sound, but their materials differ significantly. The TTC Iron features POM (Polyoxymethylene) for both its top and bottom housings, which is known for creating a unique sound signature that is deeper and relatively muted. This quality lends the Iron switch an exceptional auditory experience, characterized by a pleasing yet restrained sound. In contrast, the HMX Poro utilizes nylon for its top and bottom housings. As a classic material for switch housings, nylon produces a deeper and fuller sound profile, enhanced by its softer nature that absorbs sound waves. The rounded acoustic output of the Poro derives from its ability to dampen sound more effectively than harder plastics like POM.

When examining the interplay between the top and bottom housings in these two switches, it's essential to consider how each material's properties influence the overall sound and feel. In the Iron, both the POM top and bottom contribute similarly to the overall muted sound profile, creating a cohesive auditory experience regardless of which part of the switch is engaged. Conversely, the HMX Poro's nylon materials play a more disparate role. While the top housing's nylon captures and softens the sound during key releases, the bottom housing's deeper resonant nature can affect the bottom-out sound and tactile feedback distinctly. This duality exemplifies how the choice of housing materials—POM versus nylon—can lead to varying feel and sound throughout the actuation of a switch.

Despite these differences, it is noteworthy that the overall outcomes in sound and feel can be surprisingly similar. Both the TTC Iron and HMX Poro share a focus on delivering a deeper acoustic profile, albeit through different mechanisms. The muted yet pleasing sound of the Iron aligns closely with the fuller tone of the Poro, suggesting that consumers may experience comparable auditory satisfaction from either switch. This means that while the materials differ, the prioritization of a rich, round sound profile may result in a similar user experience, especially for typists who appreciate that deep auditory feedback. Whether one opts for the POM of the Iron or the nylon of the Poro, the thoughtful design of both switch types ensures that users will encounter gratifying sound characteristics when engaging with their keyboards.

Weight

The TTC Iron linear switch and the HMX Poro linear switch both offer lightweight options for users, but they differ slightly in their actuation forces. The Iron switch features an actuation force of 41 grams, while the Poro switch requires a slightly heavier actuation force of 45 grams. Both switches share the same bottom out force of 50 grams, indicating that they offer similar resistance when fully pressed down. For users who prefer a lighter touch, the TTC Iron may be more appealing, especially for extended typing sessions or gaming marathons. Conversely, those who enjoy a bit more resistance while typing might gravitate towards the HMX Poro due to its marginally higher actuation force. Overall, while both switches provide a light experience, the Iron is the lighter option, making it suitable for prolonged use without fatigue, whereas the Poro offers a touch more weight for those who prefer a sturdier feel.

Travel distance

The TTC Iron linear switch has a travel distance of 3.8 mm, while the HMX Poro linear switch has a slightly shorter travel distance of 3.7 mm. This makes the Iron the longer switch by 0.1 mm. A shorter travel distance, like that of the Poro, can offer faster response times, making it an appealing option for gamers or those seeking quick actuation. Conversely, the Iron's greater travel distance may provide a more pronounced and satisfying feedback for users who prefer a heftier depth. Ultimately, the choice between these two switches will depend on individual preferences: those favoring a snappier feel might lean towards the Poro, whereas those who appreciate a deeper key press might opt for the Iron.

Price comparison

Which switch is more bang for your buck?

The TTC Iron has an MSRP of $5.40 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Iron for $4.30.

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.

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 comparing the sound profiles of the TTC Iron and HMX Poro linear switches, the Iron is characterized by its pronounced clackiness, providing a crisp, bright sound with each keystroke that adds a layer of auditory satisfaction to the typing experience. This clacky sound is sharp and percussive, making it resonate well in various environments. On the other hand, the sound profile of the Poro is noted for being poppy and can also be clacky, which suggests it may present a similar auditory appeal. Both switches exhibit a lively sound that draws in users who appreciate a dynamic typing experience, and while the specifics of the Poro's sound are less detailed, the light actuation force contributes to the potential for an engaging sound signature.

In terms of feel, the TTC Iron offers a notably light actuation force, allowing for quick and easy key presses that reduce fatigue during prolonged use. The smooth travel associated with the Iron enhances the typing experience, making it an excellent choice for both typists and gamers who prefer a more responsive touch. Conversely, details on the feel of the HMX Poro switches are not explicitly stated, but the mention of silky smooth keystrokes suggests an effortless typing experience that may parallel the Iron's characteristics. Although the precise tactile feedback and resistance levels of the Poro are unknown, the lubricated nature of its design implies that it, too, prioritizes comfort and ease of use.

In conclusion, both the TTC Iron and HMX Poro linear switches present compelling options within the realm of mechanical keyboard switches, each offering unique auditory and tactile experiences. The Iron’s clacky sound and smooth typing feel make it a well-rounded choice for both enthusiasts and casual users. Likewise, while the Poro may share similar sonic qualities and an emphasis on smoothness, the absence of detailed feedback on its features leaves some aspects a mystery. Overall, those looking to explore either of these switches can expect to find satisfaction in swift, comfortable typing experiences, albeit with slightly different auditory signatures to personalize their keyboard setup.

Conclusion

To conclude, choosing between the TTC Iron linear switch and the HMX Poro linear switch ultimately hinges on your preferred typing experience and sound profile. If you value a more pronounced auditory feedback with each keystroke and enjoy a typing experience that complements both enthusiasm and daily use, the Iron switch is likely your best bet. Its clacky sound signature, lightweight actuation, and smooth travel make it ideal for those who thrive on a bit of auditory satisfaction during their typing sessions. On the other hand, if you prefer an ultra-smooth typing experience combined with a more subdued yet still satisfying sound profile, the HMX Poro should be your go-to. Its meticulously lubricated design allows for effortless gliding across the keys, ideal for prolonged typing without fatigue. In essence, the TTC Iron offers an engaging and vibrant interaction, while the HMX Poro caters to those who seek a softer, smoother, and quieter approach. Consider your typing style and environment, and select the switch that aligns best with your personal preferences for an optimal mechanical keyboard experience.

Mentioned in this article

Iron

TTC Iron Linear

$5.40

$4.30 per 10

Learn more
Poro

HMX Poro Linear

$3.50

$2.99 per 10

Learn more