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Compact black three-key gaming keypad with rotary knob and small colour screen

BTXETUEL Sayodevice-O3C 3-key OSU keypad knob screen Black

SKU CH-Q2HD-5DQXS

A compact three-key gaming keypad with Hall-effect magnetic switches, a rotary knob, and a 0.96 inch IPS colour screen running at 8000 Hz over USB 2.0

  • NameSayodevice-O3C
  • Keyboard InterfaceUSB
  • Palm RestGame, USB Cable
  • Function Keys3
  • Mechanical KeyboardMagnetic
  • Key SwitchROG HFX Magnetic Switch
  • Rapid trigger Hall switches for instant actuation
  • 96 inch IPS colour screen shows key range and counts
  • Replaceable magnetic switches with one-click calibration
  • Programmable knob controls any key or macro
  • USB 2.0 8000 Hz polling for low latency

Compact three-key OSU keypad

The BTXETUEL Sayodevice-O3C is a dedicated mini keyboard built for rhythm gamers who need rapid, precise inputs. Three Hall-effect magnetic linear switches provide adjustable actuation without physical contact. A rotary knob and a 0.96 inch IPS colour screen sit alongside the keys for extra control and live feedback. The unit connects via USB Type-C with a 2.0 interface and polls at 8000 Hz.

Upgrade from standard membrane or mechanical keypads

Magnetic switches eliminate debounce delay and let you set the actuation point to suit each game. The hot-swap sockets accept any compatible Hall magnetic switch, so worn or mismatched switches are replaced in seconds without soldering. Calibration is required on first use or after a firmware update, but the process is guided on screen. The jump is worth it when consistency and per-key tuning matter more than key count.

Behaviour during extended play

The 160 by 80 resolution screen stays legible during long sessions, showing key range, press counts or a custom ID line you define. Hall sensors maintain their feel over millions of presses because there are no metal leaves to fatigue. RGB backlighting runs continuously without affecting the 8000 Hz polling rate. The knob can be mapped to any function, letting you scroll track lists or adjust volume without leaving the keypad.

商品特色

  • Rapid trigger Hall switches for instant actuation
  • 96 inch IPS colour screen shows key range and counts
  • Replaceable magnetic switches with one-click calibration
  • Programmable knob controls any key or macro
  • USB 2.0 8000 Hz polling for low latency

商品規格

BrandBTXETUEL
SeriesSayodevice-O3C
NameSayodevice-O3C
ModelSayodevice-O3C
Part NumberSayodevice-O3C
Keyboard InterfaceUSB
Palm RestGame, USB Cable
Function Keys3
Mechanical KeyboardMagnetic
Key SwitchROG HFX Magnetic Switch
Key Switch TypeMagnetic
Keyboard ColorBlack
BacklitRGB, rgb
Dimensions25 in
Mouse IncludedGame
Mouse DPIGaming
Hand OrientationAmbidextrous
Mouse Grip StyleRGB
Mouse Adjustable WeightRGB
Buttons3
Mouse ColorBlack
Power SourceWired
Operating TimeWired, false
Distance2.52 L x 2.01 W x 1.5 H inches
System RequirementUSB Cable
FeaturesRGB, rgb, Ambidextrous
Package ContentsUSB Cable

商品問答

Does the 25 in dimension include the knob and screen, and will it fit a 60 percent keyboard tray?

The unit measures 25 in overall; that length covers the knob and the 0.96 inch IPS screen, so verify your tray's internal width before mounting.

What is the calibration step that must be done after a firmware upgrade?

After any firmware upgrade, run the on-board calibration routine — press the indicated key combination until the screen shows the 160 by 80 progress bar, then release.

Can the ROG HFX magnetic switches be swapped without desoldering, and which replacements are supported?

The switches are hot-swap compatible; any Hall-effect magnetic linear switch can be clicked into the sockets and will calibrate automatically.

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