The listed actuation force keeps the switch in a medium-light tactile range.
Description
Who It's For
Sound Profile
Review Video
Quality Assurance
HMX Saru V2 Tactile Switch
HMX Saru V2 brings back Saru’s signature full tactile character with a medium-light feel. The first Saru released in 2022 with little pre- or post-bump travel; this V2 reworks the concept with HMX for a full tactile switch that feels smooth and close to linear in use.
Out of the box, Saru V2 delivers a light, rounded tactile bump across the travel. As the factory lubricant distributes through break-in, the tactile profile becomes more evenly pronounced without losing its easy, flowing feel.
The sound is clacky, balanced, clean, and semi-full. Lubrication is applied to all four sides of the stem, the contact leaf, bottom-housing rails, and bottom-housing stem support.
Specs:
| 1 quantity = 10 switches | |
| Switch Type | Five-Pin Medium-Light Full Tactile |
| Designer | Divinikey |
| Manufacturer | HMX |
| Top Housing | PA12 nylon |
| Stem | Modified POM |
| Bottom Housing | PA2 nylon |
| Operating Force | 48g ± 5g |
| Bottom-out Force | 52g ± 5g |
| Pre-travel | 2.5mm ± 0.5mm |
| Total Travel | 2.9mm ± 0.3mm |
| Spring | 20mm KOS single-stage |
| Structure | 5-pin PCB mount, MX structure |
| Factory Lubed | Yes! Lubed on all stem sides, contact leaf, bottom-housing rails, and stem support. |
Full Tactile Character
A Medium-Light Full Tactile with Short Overall Travel
The HMX Saru V2 is a five-pin tactile switch designed by Divinikey and manufactured by HMX. It revisits the original Saru concept with a rounded tactile event that occupies much of the keypress while keeping the overall force in a medium-light range.
UniKeys describes the out-of-box feel as light and rounded, with the tactile profile becoming more evenly pronounced as the factory lubricant distributes during break-in. The result is intended to retain an easy, flowing press rather than feeling sharply abrupt.
- Five-pin MX-structure tactile switch.
- PA12 nylon top housing, modified POM stem and PA2 nylon bottom housing.
- 48g ± 5g operating force with 52g ± 5g bottom-out force.
- Short 2.9 ± 0.3mm total travel.
- Factory lubricant applied across the stem, leaf, rails and stem support.
Specification Guide
48g Operating Force with a Compact 2.9mm Stroke
The Saru V2 combines medium-light spring force with a relatively short total travel. That specification gives it a different decision profile from long-travel tactiles or heavier switches.
Only a small force increase separates operation from bottom-out.
The listed pre-travel is relatively long compared with the overall stroke.
The short overall travel creates a compact keypress compared with many traditional 4.0mm MX-style switches.
Materials & Factory Lubing
Factory Lubing Is Applied Across Multiple Contact Areas
The confirmed specification lists PA12 nylon for the top housing, modified POM for the stem and PA2 nylon for the bottom housing. UniKeys also specifies a broad factory-lube application rather than a minimal spot treatment.
- All four sides of the stem are lubricated.
- The contact leaf is lubricated.
- The bottom-housing rails are lubricated.
- The bottom-housing stem support is lubricated.
- A 20mm KOS single-stage spring is used.
The product page notes that the tactile profile can become more evenly pronounced after some use as the lubricant settles and distributes.
Sound, Feel & Build Fit
Who Is the HMX Saru V2 Most Likely to Suit?
UniKeys describes the Saru V2 as clacky, balanced, clean and semi-full, with a high-pitched sound profile. The tactile feel is rounded and full rather than a tiny isolated bump.
May Suit
- Users who want a medium-light tactile switch rather than a heavy tactile.
- Typists who prefer a rounded tactile event across much of the travel.
- Buyers who like a high-pitched, crisp and clacky acoustic direction.
- Short-travel builds where a 2.9mm total stroke is desirable.
- Users who want extensive factory lubrication out of the box.
May Not Suit
- Users who want a long 4.0mm travel or a very deep keypress.
- People looking for a silent or strongly muted office switch.
- Users who prefer a purely linear travel with no tactile bump.
- Buyers seeking a very heavy or highly resistant tactile spring.
Before You Order
Confirm Five-Pin PCB Support and Order Enough 10-Switch Packs
One quantity contains 10 switches. The current specification identifies the Saru V2 as a five-pin PCB-mount MX-structure switch, so check the keyboard PCB and plate before ordering a full set.
For a hot-swap board, verify that the sockets and plate support the intended five-pin installation. Final sound will vary with the case, plate, mount, keycaps and internal dampening.
Ordering note: Each cart quantity equals 10 switches. Calculate the packs needed for the target layout and include spares if desired.
Product Questions
HMX Saru V2 Tactile Switch FAQ
Is the HMX Saru V2 a tactile switch?
Yes. It is a five-pin medium-light full tactile mechanical switch with an MX-style structure.
How heavy is the Saru V2?
The current specification lists 48g ± 5g operating force and 52g ± 5g bottom-out force.
What is the travel distance?
Saru V2 is specified at 2.5 ± 0.5mm pre-travel and 2.9 ± 0.3mm total travel.
What materials are used?
The confirmed specification lists a PA12 nylon top housing, modified POM stem and PA2 nylon bottom housing.
Is the HMX Saru V2 factory lubed?
Yes. UniKeys specifies lubricant on all four stem sides, the contact leaf, the bottom-housing rails and the bottom-housing stem support.
Does the tactile feel change after break-in?
The product description notes that as the factory lubricant distributes with use, the tactile profile can become more evenly pronounced while keeping its light, flowing character.
What sound profile should I expect?
UniKeys describes the Saru V2 as high-pitched, clacky and clean, with a balanced and semi-full character. Actual sound will vary with the rest of the keyboard build.
How many switches are included per quantity?
Each quantity contains 10 switches. Order enough packs for the keyboard layout plus any desired spare switches.
HMX Saru V2 Tactile Switch ...
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Customer Reviews
Overall rating: 5.0 / 5 from 2 reviews.
This is really good.
Great switches, living up to the hype