HMX Jammy Linear Mechanical Keyboard Switches
Best linear switch for gamers and typists seeking smooth, consistent performance.
Experience exceptionally smooth keystrokes with the HMX Xinhai Linear Mechanical Keyboard Switches, designed for both gaming and typing enthusiasts. These switches offer a seamless, linear feel without tactile bumps, featuring a balanced 55g actuation force for precise control. Constructed with premium POM stems and durable PA12 and nylon housings, they ensure superior smoothness and acoustics. The 22mm single-stage spring provides consistent performance, while the 5-pin PCB mount design offers broad compatibility, though minor modifications may be needed for 3-pin hotswap boards.
$20.30
Owner Satisfaction
4.6
/ 5
Category Rank
1604
/ 6542
#1604 in Keyboard Keys & Caps
Price vs Category Average
-53%
Below average
Switch Type
Linear
/ Linear
Who it's for
- Typists wanting a buttery feel without manual lubrication
- Enthusiasts seeking a deep, marbly sound profile
- Budget-conscious builders looking for premium performance
Who should skip it
- Heavy-handed typists preferring a firmer actuation force
- Perfectionists bothered by slight stem wobble or inconsistency
- Shoppers needing immediate availability and easy global shipping
Performance breakdown
Keystroke Smoothness
POM stems deliver a buttery, frictionless travel with every single press.
Acoustic Profile
High-quality housing materials produce a crisp, satisfying sound signature.
Actuation Consistency
The 22mm spring ensures uniform resistance and reliable, snappy feedback.
Build Durability
Premium nylon and PA12 housings withstand heavy, long-term typing sessions.
Installation Versatility
Five-pin design offers stability but requires clipping for three-pin boards.
Gaming Responsiveness
Optimized travel distance allows for rapid, precise inputs during intense gameplay.
Key Specs
Switch Type
Linear
Pin Type
5-Pin
Top Housing Material
PA12
Bottom Housing Material
Modified Nylon
Stem Material
POM
Actuation Force
55 g
Bottom-Out Force
62.5 g
Total Travel
3.4 mm
Features
- Silky-smooth linear keystrokes
- Balanced 55g actuation force
- Premium POM and nylon materials
- Consistent 22mm single-stage spring
- 5-Pin PCB Mount design
- Optimized for high-speed input
What customers say
Customer sentiment for the HMX Jammy Linear Mechanical Keyboard Switches is overwhelmingly positive, focusing primarily on their exceptional smoothness and satisfying sound. Users consistently highlight the remarkable out of the box performance, largely due to quality materials and effective factory lubrication, which removes the need for manual tuning. The acoustic profile is highly praised, often described as creamy and deep, offering a premium auditory experience. While not the cheapest option, reviewers agree the performance rivals or surpasses more expensive switches, making them an outstanding value for hobbyists. The overall consensus confirms these switches deliver a high performance, smooth, and acoustically pleasing typing experience.
Know before you buy
The HMX Jammy switches feature a 5-pin design. While they will physically fit into most 3-pin hotswap sockets, you may need to clip the two plastic guide pins on the bottom of the switch housing for a flush fit.
The 55g actuation force is considered a 'medium' weight, offering a balanced feel that is light enough to prevent finger fatigue during extended typing but firm enough to avoid accidental key presses.
HMX switches are known for their high-quality factory lubrication. Most users find them exceptionally smooth and consistent right out of the box, so manual lubing is generally unnecessary unless you have specific acoustic preferences.
The longer 22mm spring provides a snappier return compared to standard-length springs. This helps the switch reset faster, which is particularly beneficial for high-speed typing and rapid-fire gaming inputs.
Yes, these switches use a standard MX-style cross stem. They are compatible with virtually all aftermarket keycap sets, regardless of the profile, including Cherry, OEM, SA, XDA, and DSA.
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$20