SayoDevice O3C OSU Keyboard Rapid Trigger Hall Switches Magnetic Linear Switches Keyboard with Knob and Screen,Copy Paste,Shotcut,Macro Hotswap Mini Keypad.… (with OSU keycaps-Black)
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FREE refund/replacement until Jan 31, 2026
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Availability:
In Stock.
Arrives
Friday, Jan 9
Color: with osu keycaps--black
Features
- O3C OSU SayoDevice KeyboardThis keyboard with 3 Hall magnetic linear switches, 1 knob, 1 screen! TYPE-C,USB 2.0 high-speed 8000HZ.
- Replaceable SwitchesSupports any Hall magnetic Switches, with a simple click for calibration.
- IPS color ScreenWith 0.96 inch IPS color screen,160*80 Resolution, visible key range and button counting.
- Custom ScreenThe first line of text on the screen can be customized, such as writing your own ID.
- Custom KnobThe knob can also be set with any key, such as to scroll through the song list.
- NOTICESometimes, the keyboard needs to do "CALIBRATION" ( The steps are shown in the figure ) before use for the first time or after firmware upgrade.
Brand: BTXETUEL
Compatible Devices: Laptop, Mac, PC
Connectivity Technology: USB-C
Keyboard Description: Gaming
Recommended Uses For Product: Gaming
Special Feature: RGB
Color: with osu keycaps--black
Keyboard backlighting color support: RGB
Style: Game
Product Dimensions: 2.52"L x 2.01"W x 1.5"H
Product Dimensions: 2.5 x 2 x 1.5 inches
Item Weight: 5.6 ounces
Manufacturer: BTXETUEL
Item model number: Sayodevice-O3C
Is Discontinued By Manufacturer: No
Date First Available: May 25, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jan 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: with osu keycaps--pink
Amazing 8000 hz polling rate the reactivity is amazing especially for games like geometry dash/Osu it functions very well and has a volume knob very useful if you have a smaller keyboard without normal sound function keys, its easy to connect and was pretty comparable off the start.
Reviewed in the United States on October 10, 2025 by Levi Mendoza Levi Mendoza
Color: black
Fast and receptive; perfect for playing geometry dash; slightly annoying click sound
Reviewed in the United States on December 7, 2025 by Alejandro Alejandro
Color: white
Got this for my kiddo who plays geometry dash and honestly I'm geeking out on this way harder than he even is. It's so incredible all the different functions it has I haven't even figured it all out yet but this was definitely a solid purchase. It looks and feels really nice too. The size is perfect and there is zero lag. As far as I'm aware it doesn't connect with Bluetooth, as it shouldn't sense Bluetooth is not the kind of thing you want to use if you want to skirt lag. Definitely make sure you have a proper cable though, I do not believe for a half a second that the cable this thing comes with is proper. Make sure you get at least a 5 gig data cable USB-C
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Reviewed in the United States on July 14, 2025 by Jena K Evans
Color: white
The media could not be loaded. It’s crazy how this little device makes you improve a lot in (my case) geometry dash. And it’s pretty cool small tech, too, with the little screen. The 8000hz and rapid trigger functionality makes this absolutely worth it for timings. I heavily recommend if you’re onto GD. Didn’t believe the hype, now I do.
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Reviewed in the United States on November 23, 2025 by Orozco Orozco
Color: black
I used the Sayo device for Geometry Dash, and it works extremely well! I got the settings that worked well for me, but at first, I had to recalibrate it since the key automatically spammed the first button, which was really easy to do. It comes with black keys on it and a set of white keys if you want to change it! It was small and easy to plug in, and I love how it has a screen, and you can put custom videos or whatever on it! I bought the black Sayo device and it went well with my setup!
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Reviewed in the United States on December 6, 2025 by Dashel
Color: black
Extremely good for geometry dash have no issues with it and the color, key, and screen customization is amazing. And the keys have a nice click. Very light as well.
Reviewed in the United States on September 22, 2025 by Holden Meyer
Color: white
The media could not be loaded. 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.
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Reviewed in the United States on April 24, 2024 by someonescart someonescart
Color: white
purchased for nephew he says its perfect
Reviewed in the United States on December 2, 2025 by Lisa A. Dembrosky