Ducky One 3 SF DayBreak Keyboard Gaming USB US English Black Blue

The Ducky One 3 SF DayBreak is a 65% mechanical gaming keyboard in a compact US English layout. Built with true PBT double-shot keycaps and a frosted finish, the keyboard preserves legends and resists shine and stains. Its optimized weight distribution, lowered case height and sleek bezel design provide stable positioning and a compact aesthetic. The keyboard features a detachable USB Type-C cable, dual-layer PCB for improved signal stability and longer life, and three adjustable tilt angles via two-step feet. RGB backlighting with multiple lighting effects allows on-board customization.

Advantages

True PBT double-shot keycaps ensure legends do not fade and offer a durable, textured surface for fast, repeated use. Hot-swap Kailh sockets allow tool-free switch replacement for easy customization. Multi-layer acoustic padding plus an EVA foam layer under the PCB reduce unwanted noise and emphasize the natural sound of installed mechanical switches. The 1000 Hz USB HID polling rate and dual-layer PCB provide responsive performance and reliable simultaneous-key detection (N-key or 6-key rollover).

Suitable for

• Compact desktop setups where desk space is limited
• Gamers seeking a responsive 65% layout with RGB lighting
• Users who want to customize switches without soldering
• Typing and content creation that benefit from stable, non-resonant acoustics

Key specifications

• Brand: Ducky
• Model: One 3 SF DayBreak (DKON2167ST-PUSPDDBBHHC1)
• Layout: 65% US English
• Keycaps: True PBT double-shot, frosted finish
• Switch support: Hot-swappable (Kailh hot-swap sockets)
• Connectivity: Detachable USB Type-C, 1000 Hz polling rate (USB HID)
• PCB: Dual-layer PCB, N-key rollover or 6-key rollover
• Acoustic design: Multi-layer padding + EVA foam under PCB
• Backlight: RGB backlit keys with built-in effects
• Adjustability: Two-step feet (three tilt angles)
• EAN: 4710578309530

How to use

Connect the keyboard to your computer using the detachable USB Type-C cable; the device uses USB HID and operates at a 1000 Hz polling rate for low-latency input. If you wish to change switches, power off the keyboard, pull the keycaps and remove the switch from the Kailh hot-swap socket, then insert the desired compatible mechanical switch until it seats firmly. Use the keyboard’s built-in controls to adjust RGB brightness, speed and color, and set the preferred tilt angle using the two-step feet.

Recommendations

For long-term preservation of the PBT keycaps, avoid prolonged exposure to direct sunlight and clean keycaps with a soft, dry cloth or mild soapy water when removed from the keyboard. When swapping switches, use compatible mechanical switch types and handle the PCB and sockets gently to maintain reliability.