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🎮 Elevate your workflow with precision, color, and speed — the ultimate mini keypad for pros who demand more.
The BTXETUEL SayoDevice OSU O3C is a compact, high-performance mini keypad featuring 3 Hall magnetic linear switches, a customizable 0.96-inch IPS color screen, and a programmable knob. With an ultra-fast 8000Hz USB-C connection and hot-swappable switches, it offers seamless customization and cross-platform compatibility, making it ideal for professionals and gamers seeking precision and efficiency in a sleek, portable design.








| ASIN | B0C3YYDY8R |
| Additional Features | Magnetic |
| Antenna Location | Gaming |
| Best Sellers Rank | #28 in Computer Keyboards |
| Brand | BTXETUEL |
| Built-In Media | '3 Hall magnetic linear switches', '1 knob', '1 screen' |
| Button Quantity | 3 |
| Color | white |
| Compatible Devices | Laptop, Mac, PC |
| Compatible Operating System Family | Linux, MacOS, Windows |
| Compatible Tablet Computer Models | Samsung Galaxy Tab S7 FE 12.4" |
| Connectivity Technology | USB-C |
| Customer Reviews | 4.7 out of 5 stars 1,197 Reviews |
| Enclosure Material | Plastic |
| Hand Orientation | Ambidextrous |
| Item Dimensions L x W x H | 2.52"L x 2.01"W x 1.5"H |
| Keyboard Backlighting Color Support | RGB |
| Keyboard Description | Gaming |
| Keyboard Layout | QWERTY |
| Manufacturer | BTXETUEL |
| Mfr Part Number | SayoDeviceO3C |
| Model Name | O3C OSU SayoDevice Keyboard |
| Model Number | SayoDeviceO3C |
| Number of Items | 1 |
| Number of Keys | 3 |
| Number of Packs | 1 |
| Number of Sections | 1 |
| Recommended Uses For Product | Gaming |
| Series Number | 3 |
| Special Feature | Magnetic |
| Style Name | Game |
| Switch Type | Linear |
| Unit Count | 1 Count |
| Warranty Description | 2 YEAR |
J**A
Incredible performance!!
My brother loved this. He's an OSU and Geometry Dash player and the responsiveness, quality and performance fits just what he wanted. It sounds great, it's easy to use and setup. Definitely worth the price!!
E**R
As advertised
Perfect for geometry dash
N**I
Good
Buy this. I got a new best on Yatagarasu 30 minutes after it arrived.
C**3
Awesome Keypad
It works extremely well, it helped me get better at Geometry Dash, it’s high quality, good lighting, and I had good experiences with it! Definitely a 10/10
O**R
Good choice if you can’t get a wooting
Good quality build. Not the best, bad for how much it costs it’s a bit pricey, for 3 keys. the switches that come with are super annoying, but buying replacements is so easy that it’s not an issue. Very quick and responsive, not too wooting speed but probably second best. really portable and can move it out of the way at any moment. software is fine too.
M**T
Great for Geometry Dash!
I bought this for my son to play his game with. He says it’s fantastic and loves it. If he’s happy, I’m happy!
S**T
Rapid Trigger Setup and Sound deadening
The keypad is pretty good, nice construction, but very loud. If you do use it on a bare table even with iems its obnoxiously loud. It's preferable to use a deskmat or mouse pad to deaden the sound. There is no guide that comes in the box of how to setup rapid trigger. Rapid Trigger Guide: Hold down the volume Knob, Go to Button>Key stroke>spin knob to select a key Trigger: 1.50mm (Actuation point) Release: 1.40mm (Reset point) ^Normal key acutuation point, when your key press travels 1.50mm Rapid trigger start. recommend setting to your mechanical keyboard acutuation point or slightly less between 1 to 2mm. RT Top: 0.65mm (Rapid Trigger Top Border) RT End: 3.95mm (Rapid Trigger Bottom Border) ^ Zone in which rapid trigger works, If you go above the RT Top when you let go of the key you have to press 1.50mm to trigger Rapid Trigger. RT Trigger: 0.25mm (Rapid Trigger Trigger Sensitivity) RT Release: 0.25mm (Rapid Trigger Reset Sensitivity) ^ It dictates how much your key needs to travel for Rapid Trigger to send a press, so 0.25mm (RT Trigger) of travel to have an input and 0.25mm (RT Release) to reset within the Rapid trigger zone *Osu subreddit has a guide on Rapid Trigger, you can check that out if mine doesn't make any sense Keybinds: Sayodevice.com/key Click “search sayodevice”, pair your device. Select a key, click “general key”, find keybind, press ok and press submit. How to sound deaden in a jank way, buy a 2mm thick sheet of silcone with tape on it. Cut a piece the shape of the empty space on the bottom of the keypad and stick it on. Cut another piece the shape of the keypad. Take the plastic film off the silcone and stick it on the silcone in a corragated cardboard pattern, it needs those bubbles to sound deaden. Use some tape and tape it to the bottom of the keypad. Now it’s half as loud.
L**R
Very High Quality
Super cheap for it’s customizability and speeds. Great for playing games like Osu & Geometry Dash.
A**E
Fait le job
Très bien. Pour mon fils, il est très satisfait.
M**T
had no idea what it was but my son loves it
My son uses it with intense games were he needs better control, seems to really like it
P**.
Super bra produkt
Min son är ”over the moon” på detta produkt. Kan bara rekommendera. Men mycket störigt med ljudet, så stäng dörren till barnens rum 😊
O**I
عملي
جودة مميزة
K**E
It's really good
This thing is absolutely great, I got it in perfect condition, it comes with a long wire (USB C to normal USB) and all the details are correct. It works amazingly for GD and I love it.
Trustpilot
3 weeks ago
2 days ago