O3C Rapid Trigger Hall Effect Keyboard Suitable for OSU and Geometry Dash Rhythm Game Macro Keypad with Magnetic Linear Switches (White, Gateron KS-20 White Switch)
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AI Verdict
A 3-key macro keypad with Gateron KS-20 magnetic linear switches, 0-4.000mm rapid trigger, and an 8000Hz polling rate, built for competitive rhythm gaming.
This keypad is purpose-built for rhythm games like OSU and Geometry Dash, offering rapid trigger technology with 0-4.000mm customizable actuation and an 8000Hz polling rate. Its magnetic switches and hot-swappable design cater directly to the needs of players seeking a competitive edge and customization.
If you need more keys or a full keyboard experience with similar rapid trigger technology, look for full-sized keyboards with Hall effect switches and high polling rates.
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Pros
- Rapid Trigger with 0-4.000mm customizable actuation allows for precise and fast inputs in rhythm games.
- Gateron KS-20 Hall effect magnetic switches offer durability without traditional contact wear.
- 8000Hz polling rate provides extremely low input latency for competitive play.
- Hot-swappable design supports any Hall magnetic switches for customization.
- 0.96-inch IPS color screen displays key range, button counting, and custom animations.
- Programmable keys and knob for custom shortcuts or functions like scrolling.
Cons
- Requires calibration before initial use or after firmware updates, which can cause held inputs if skipped.
- The 0.96-inch IPS screen has a low 160x80 resolution.
- Default sensitivity settings can be too high, leading to accidental inputs for some users.
- SayoDevice's settings website is reported as confusing to navigate.
Dimension Scores
Gateron KS-20 magnetic linear switches offer a smooth, consistent feel with customizable actuation from 0-4.000mm, which is excellent for rapid, repetitive presses in rhythm games.
USB-C connectivity combined with an 8000Hz polling rate indicates a focus on a stable and high-speed wired connection.
The product specifications do not mention any backlighting for the keys.
The 5.1-ounce weight suggests a compact but not overly substantial build, and the hot-swappable magnetic switches contribute to long-term durability.
Best For
- OSU and Geometry Dash players needing rapid trigger for competitive advantage.
- Users who require precise, customizable key actuation for specific game mechanics.
- Individuals looking for a compact, dedicated macro keypad with magnetic switches.
Not Recommended For
- General typing or productivity tasks due to its 3-key layout.
- Users who prefer a plug-and-play experience without potential calibration steps.
- Those needing a large, high-resolution display on their macro pad.
Watch Out For
- Calibration is a necessary step that, if missed, can cause the keypad to hold inputs, messing up gameplay.
- The SayoDevice website for adjusting settings is described as confusing and overwhelming with information.
- Tapping too hard can lead to the keypad holding the input, requiring calibration to resolve.
- The 8000Hz polling rate is largely theoretical for most users, as typical monitors refresh at 240Hz or less.
Full Specifications
| ASIN | B0G25RZDZ5 |
| Brand | SAYODEVICE |
| Color | White |
| Item Weight | 5.1 ounces |
| Switch Type | Linear |
| Manufacturer | SAYODEVICE |
| Special Feature | Backlit, Customizable Display Keys, Hot-Swappable, Hotkeys and Media Keys, Volume Roller |
| Hand Orientation | Ambidextrous |
| Compatible Devices | PC |
| Product Dimensions | 2.6 x 2 x 1.3 inches |
| Keyboard Description | Gaming |
| Connectivity Technology | USB-C |
| Recommended Uses For Product | Gaming |
What Buyers Say
This keypad is a game-changer for rhythm game enthusiasts, with users reporting significant improvements in OSU scores thanks to the rapid trigger feature. The magnetic switches are praised for their durability, and the ability to customize actuation from 0-4.000mm is a key selling point for precision. However, some users found the default sensitivity too high, leading to accidental inputs, and the required calibration process can be a minor hurdle. The small 160x80 screen, while 'cool,' is primarily functional for displaying key data rather than offering a rich visual experience.
“Dude, this thing actually made my OSU scores jump, but seriously, calibrate it right away or you'll be holding notes you didn't mean to. The website for settings is a mess though.”
Common Praise
- Rapid Trigger functionality significantly improves performance in rhythm games like OSU.
- Gateron KS-20 magnetic switches are durable and won't wear out like traditional switches.
- Customizable trigger release from 0-4.000mm allows for fine-tuned input precision.
- The knob is useful for quick adjustments like scrolling through song lists.
- Hot-swappable switch design allows for easy replacement and experimentation with other Hall magnetic switches.
- Performs well as a budget-friendly alternative to more expensive rapid trigger keypads.
Common Complaints
- Calibration is occasionally required, and skipping it can cause keys to hold inputs.
- The SayoDevice website for settings is confusing and difficult to navigate.
- Default sensitivity can be too high, leading to unintended inputs if not adjusted.
- The 0.96-inch IPS screen has a low 160x80 resolution.
- The 8000Hz polling rate is often considered overkill for typical monitor refresh rates.
Ownership Tips
- After a few days, users get used to the rapid trigger sensitivity, even if it feels too sensitive initially.
- Finding optimal settings, possibly from Reddit posts, can significantly improve comfort and performance.
- Regular calibration, especially if inputs feel off, is crucial for consistent performance.
- The small screen is more for utility (key counts, animations) than for detailed information.
Frequently Asked Questions
What kind of switches does it use?
It uses Gateron KS-20 White Hall effect magnetic linear switches. These switches are hot-swappable and support any Hall magnetic switches.
Can I customize the keys and knob?
Yes, the keys and the knob can be set to any key or combination like Ctrl/Alt/Shift + any keys. The knob can also be used for scrolling.
What is 'Rapid Trigger'?
Rapid Trigger allows the key to register input the moment your finger moves up or down, enabling extremely fast and precise repeated presses, which is crucial for rhythm games.
Do I need to calibrate it?
Yes, sometimes calibration is needed before first use or after a firmware upgrade. Skipping this can lead to issues like held inputs.
What is the screen for?
The 0.96-inch IPS color screen displays visible key range, button counting, and supports custom animations.
Buying Guide
When looking at a macro keypad like this, you're really buying into speed and precision for specific tasks, not a full keyboard replacement. The 'rapid trigger' feature is the star here; it means your key presses register and release almost instantly, which is a huge deal for games where every millisecond counts. Don't expect to type emails on this, it's for dedicated, fast inputs.
Rapid Trigger
This isn't just a marketing buzzword; it's how fast the key registers both when you press it down and when you lift it up. Imagine a light switch that turns on the second you touch it and off the second you let go, even if you don't push it all the way. For rhythm games, this means you can hit notes faster and more accurately without waiting for the switch to reset.
Hall Effect Magnetic Switches
Unlike traditional mechanical switches that use physical contacts that can wear out, these use magnets. Think of it like a contactless sensor. This means they're super durable and can be incredibly precise, allowing for that rapid trigger magic.
8000Hz Polling Rate
This refers to how many times per second the keypad reports its status to your computer. 8000Hz means it's checking 8000 times a second. While it sounds incredibly fast, for most people with standard monitors, the benefit might be hard to perceive, as your screen isn't updating that quickly. It's like having a super-fast car on a road with a low speed limit.
Alternatives
If this 3-key layout isn't enough, search for full-sized keyboards with Hall effect switches and rapid trigger functionality for a more complete gaming setup.
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