HMX - Blue Topaz Linear Switches

HMX

HMX - Blue Topaz Linear Switches

£4.00
Pack Size
Pack Size: 10 Switches
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Detalles del producto

Premium HMX x Mage Studio

HMX Blue Topaz Linear Switch

Precision-engineered linear switch featuring ultra-tight housing tolerances, specially molded PC top for eliminated rattling, and innovative P4 nylon blend bottom housing. Ultra-light 40g actuation with refined clacky sound signature, factory lubrication, and near-zero stem wobble—delivering premium HMX smoothness in an elegant blue aesthetic.

The HMX Blue Topaz Linear Switch represents a collaboration between HMX and Mage Studio, combining HMX's renowned ultra-smooth manufacturing with innovative materials engineering. Designed specifically to address common switch issues like stem wobble and loose top-out noise, the Blue Topaz features specially molded polycarbonate top housing with tighter tolerances that virtually eliminate rattling—standing out even among HMX's already exceptional lineup for housing precision.

At the heart of the Blue Topaz is the LY stem paired with an innovative P4 bottom housing—a pioneering nylon blend material that reduces fiberglass content while increasing PTFE in PA66 formulation. This creates a tempered, softer bottom-out feel compared to standard nylon housings, with quieter acoustics that maintain HMX's signature clacky character while being more refined and controlled. The specially molded PC top housing undergoes unique processing to concentrate top-out sounds, producing subtle, focused acoustics rather than the loose, hollow sounds typical of standard PC tops. With ultra-light 40g actuation, 48g bottom-out, and nearly full 3.9mm travel distance, the Blue Topaz delivers feather-light linear performance with satisfying auditory feedback. Factory lubrication ensures silky-smooth operation out of the box, while the 5-pin PCB mount design and 22mm long spring provide snappy key return and stable installation. The translucent speckled blue aesthetic adds visual appeal to builds where RGB lighting or visible switch internals enhance the overall design.

Technical Specifications

Switch Type
Linear
Manufacturer
HMX x Mage Studio
Actuation Force
40±2gf
Bottom-Out Force
48±2gf
Pre-Travel
2.0±0.2mm
Total Travel
3.9±0.2mm (3.7mm actual)
Mount Type
PCB Mount (5-Pin)
Top Housing
PC (Specially Molded)
Bottom Housing
P4 (Nylon Blend)
Stem Material
LY (Blue POM)
Spring
22mm Single-Stage
Factory Lubrication
Yes (Krytox-style)
Stem Wobble
Near-Zero (Tight Tolerances)
LED Compatibility
SMD RGB
Aesthetic
Translucent Speckled Blue
Lifespan
50+ Million Cycles

Key Features

Ultra-Tight Housing Tolerances
The Blue Topaz stands out even among HMX's exceptional lineup for its ultra-tight housing tolerances designed to virtually eliminate stem wobble and rattling. The specially molded PC top housing uses refined molding processes to create precision fit that maintains consistency throughout the entire keystroke—from rest position through full actuation. Unlike switches that develop wobble during actuation, the Blue Topaz maintains near-zero stem movement throughout, creating a solid, premium typing feel.
Specially Molded PC Top Housing
Unlike typical polycarbonate top housings that can produce loose, hollow top-out sounds, the Blue Topaz features uniquely molded PC tops engineered to eliminate unnecessary noise. The refined molding process concentrates top-out acoustics into subtle, focused sounds rather than rattly, dispersed noise. This creates hard, crisp top-out with pure switch sound character—removing distracting housing vibrations and resonance that plague standard PC tops.
Innovative P4 Nylon Blend Bottom Housing
The pioneering P4 bottom housing represents advanced materials engineering—HMX reduced fiberglass content while increasing PTFE in PA66 formulation to create a nylon blend that sounds quieter and feels more tempered than traditional P3 or PA3.0 housings. The result is softer, more controlled bottom-out feel with reduced harshness, while maintaining enough character to avoid becoming overly muted. The P4 material creates balanced acoustics that complement the LY stem's brightness.
Ultra-Light 40g Actuation
Feather-light 40±2gf actuation force enables effortless keystrokes with minimal finger pressure required. The ultra-light weighting combined with 48±2gf bottom-out creates an airy, responsive typing experience where keys seem to activate with barely a touch. The 22mm long spring provides snappy return despite the light force, preventing mushy or sluggish feel. Ideal for rapid typing, speed gaming, or users who prefer minimal resistance during extended sessions.
Refined Clacky Sound Signature
Maintains HMX's signature clacky sound profile but in a more refined, petite package. The Blue Topaz retains classic bright, lively HMX acoustics but with tempered volume and more controlled character compared to louder options like Hyacinth V2. The combination of PC top (crisp top-out), P4 bottom (softer bottom-out), and LY stem creates balanced clacky sound—vibrant and engaging without being overwhelming. Not a deep-sounding switch but achieves sophisticated brightness.
Premium Factory Lubrication
HMX's renowned factory lubrication creates silky-smooth linear travel straight out of the package. Switches feel like feathers during typing—smoother than most light linear switches that can feel scratchy or inconsistent at ultra-low forces. The comprehensive lubrication covers stem rails and spring, eliminating scratchiness and spring ping while maintaining the responsive, snappy character. Requires no additional modifications for premium performance.

Typing Experience & Sound Profile

Silky-Smooth Linear Feel
The Blue Topaz delivers HMX's trademark ultra-smooth linear travel with virtually no scratchiness or friction. Factory lubrication creates buttery-soft keystrokes where the ultra-light 40g force feels effortless—fingers glide across keys with minimal resistance. The tight housing tolerances prevent wobble during typing, creating solid, consistent feel throughout the keystroke. The nearly full 3.9mm travel (3.7mm actual) provides more substantial keystroke depth compared to HMX's short-pole switches, feeling closer to traditional full-travel linears.
Tempered Bottom-Out Feel
The P4 nylon blend bottom housing creates softer, more forgiving bottom-out compared to standard nylon or harder plastics. The tempered feel reduces harshness when bottoming out aggressively, making extended typing sessions more comfortable on fingers. Combined with the light 48g bottom-out force, the Blue Topaz provides gentle, cushioned end-of-travel that doesn't jar or fatigue hands even during heavy use. The softer bottom-out complements the airy, feather-light actuation perfectly.
Clacky but Controlled Acoustics
Sound profile retains HMX's signature bright, clacky character but with more refinement than louder HMX offerings. The specially molded PC top creates crisp, focused top-out without hollow resonance, while the P4 bottom produces quieter, softer bottom-out compared to standard PA66 nylon. The LY stem contributes brightness without veering into deep territory. Overall acoustics are vibrant and lively—satisfying clack on each keystroke without being as loud or aggressive as Hyacinth V2.
Snappy Key Return
The 22mm long spring provides responsive, snappy key return despite the ultra-light forces. Keys bounce back quickly after actuation, enabling rapid double-tapping and fast typing without mushy, sluggish feel. The long spring combined with nearly full travel distance creates satisfying keystroke rhythm. The switches fit slightly looser on plates/PCBs than some competitors—beneficial for easy switch swapping but may require extra attention when soldering to ensure flush mounting.

Available Pack Sizes

10-Switch Packs: Sold in convenient 10-switch increments for flexible purchasing. Standard pack size across most retailers allows precise quantity ordering for any keyboard layout (60% = 61 keys, 65% = 68 keys, TKL = 87 keys, Full-size = 104+ keys). Some retailers offer 18-switch packs or bulk options. Ideal for testing HMX's premium linear performance before committing to full builds, replacing worn switches, or sampling ultra-light force switches.

Ideal For

HMX Enthusiasts: Perfect for fans of HMX switches who want refined clacky sound in a nearly full-travel package—less aggressive than Hyacinth V2 but maintaining signature bright character.

Ultra-Light Linear Preference: Ideal for users who love feather-light 40g actuation—enables effortless typing with minimal finger pressure, perfect for speed typists or those with lighter typing style.

Premium Stock Switches: Excellent choice for those seeking top-tier factory lubrication and near-zero stem wobble out of the box—no modifications required for silky-smooth premium performance.

Clacky Sound Enthusiasts: Great for builds where bright, vibrant clacky acoustics are desired without overwhelming volume—refined HMX sound signature that's engaging without being fatiguing.

RGB Builds: Translucent speckled blue aesthetic with PC top housing allows excellent RGB light transmission, creating visually appealing illuminated keyboards where switch appearance matters.

Fast Typing / Gaming: Ultra-light forces and snappy spring enable rapid inputs ideal for speed typing (70+ WPM), competitive gaming requiring quick keystrokes, or users prioritizing minimal actuation effort.

Full-Travel HMX Fans: Perfect for those who appreciate HMX smoothness but prefer nearly full 3.9mm travel over short-pole switches—provides more traditional keystroke depth while maintaining HMX quality.

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Presupuesto

• Switch type: Linear mechanical switch
• Mount type: 5-pin PCB mount (MX-style)
• Actuation force: Balanced for responsive performance
• Travel: Smooth linear travel path
• Stem: MX cross-stem compatible
• Housing: Durable construction for long-lasting use
• Sound profile: Refined and controlled
• Pack size: 10 switches

Dentro de la caja

• 10 × HMX Blue Topaz linear switches
• Protective packaging

Compatibilidad

• Compatible with MX-style mechanical keyboards and PCBs supporting 5-pin switches
• Works with hot-swap and solder-mount boards
• Suitable for gaming, custom builds, and everyday typing
• Fits 60%, 65%, TKL, full-size, and other standard layouts

Garantía

1 year manufacturer's warranty – further warranty provided at OZO’s discretion depending on the situation