

🎮 Elevate your command center with the SayoDevice O3C — where precision meets personalization.
The SayoDevice O3C Black Keyboard is a compact, high-performance keypad featuring 3 Hall magnetic linear switches, a customizable 0.96-inch IPS color screen, and a multifunctional knob. With USB-C connectivity at an 8000Hz polling rate, hot-swappable switches, and a sleek black design, it’s engineered for gamers and professionals seeking speed, customization, and durability in a minimalist form factor.








| ASIN | B0C5JTVQNN |
| Additional Features | Magnetic |
| Antenna Location | Gaming |
| Best Sellers Rank | #8 in Computer Keyboards |
| Brand | BTXETUEL |
| Button Quantity | 3 |
| Color | black |
| Compatible Devices | Laptop, Mac, PC |
| Connectivity Technology | USB-C |
| Customer Reviews | 4.7 out of 5 stars 1,681 Reviews |
| Enclosure Material | Plastic Or Metal |
| 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 |
| Model Name | Sayodevice-O3C |
| Model Number | Sayodevice-O3C |
| Number of Keys | 3 |
| Power Source | USB power |
| Recommended Uses For Product | Gaming |
| Special Feature | Magnetic |
| Style Name | Game |
| Switch Type | Linear |
| Unit Count | 1.0 Count |
| Warranty Description | 2 YEAR |
N**S
Value for money
Very well made. Nice design and functionality
B**Q
AWESOME FOR GD
ive been using this for a couple months and no issues, ive gotten 100k clicks on the middle key and it still works great. the rapid trigger is super responsive and perfect for gd.
M**R
Great for gd
Great for geometry dash, super satisfying to fiddle with. I went from nine circles being my hardest to beating denouement and getting 71% on acu. All in one month btw.
J**H
How
So uh I bought this yesterday and today I'm writing this because I beat bloodbath today with the Sayo and I don't really have much words because it's my first time using one. What I can say is that the Sayo is VERY responsive and it's a huge improvement from your keyboard if you play gd. About sound, it can be very loud so I recommend changing switches when you can to some better ones that sound better and have the same responsiveness as the ones in the Sayo. And that's it I really like it because it helped me beat Bloodbath ig.
K**H
Amazing product, improved my GD skills! The only issue is that the website goes down often.
It’s very fun to use, the amount of customization feels amazing, and I think it’s fun how loud the clicking sound is. By far the most responsive controller I’ve ever held. I don’t play osu!, but I do play GD a lot, and the ability to spam and click precisely has improved a lot. It has allowed me to complete my new hardest, MikuMikuMiku. One massive downside is that there is no app you can download. You have to configure its settings on the website, which has gone offline multiple times since I’ve had this device. Unless you’re able to play your games with the default settings (Z, X, and C for the keys), the keybinds reset every time the device is turned off, and you have to reopen the website to restore them.
S**R
Setup issues
The BTXETUEL SayoDevice OSU O3C is an excellent tool for improving gaming performance, but it’s extremely difficult to connect it to a computer—especially to a MacBook, in my case. Once the setup page opens in the browser, all the instructions are in Chinese, and clicking around randomly doesn’t seem to help at all. I eventually managed to get my computer to connect to the device, but I honestly have no idea what I did to make it work. The developers really need to put more effort into this aspect, otherwise it’s almost discouraging to invest in a gadget that appears not to function properly. However, once this nightmare is over, the device is very enjoyable and effective to use.
P**R
Wonderful product - slow shipping.
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.
A**A
Great gaming device
12 year old was able to program on his own and is thrilled with performance of this Sayo. He uses it for Geometry Dash game. You can use it with an iPad or laptop. Great tutorial by a British young man who teaches how to program it for iPad usage.
Trustpilot
Hace 2 semanas
Hace 2 semanas