SayoDevice O3C OSU Keyboard Rapid Trigger Hall Switches Magnetic Linear Switches Keyboard with Knob and Screen,Copy Paste,Shotcut,Macro Hotswap Mini Keypad.…
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Availability:
12 left in stock
Arrives
Feb 24 – Mar 1
Color: 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: Magnetic
Color: black
Keyboard backlighting color support: RGB
Style: Game
Product Dimensions: 2.52"L x 2.01"W x 1.5"H
Product Dimensions: 2.52 x 2.01 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 17, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Feb 24 – Mar 1
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: white
I almost gave this product only 4 stars because in the world of Amazon, this item ships SLOW. Just be prepared for that. As far as actual quality - worth the wait. Exactly what my son was looking for. He now uses it daily. Functions exactly as it should and has enhanced his game play.
Reviewed in the United States on December 29, 2025 by pugapoo_owner
Color: black
Little hard to work but overall great looks and feels amazing and works well
Reviewed in the United States on January 6, 2026 by Hanzel
Color: white
The product feels high quality. The switches are really good and responsive. If you buy this product make sure you callibrate it with the inbuilt callibration tools.
Reviewed in the United States on December 30, 2025 by Liga
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: 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: 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
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