| Manufacturer | Ducky |
|---|---|
| color | Navy |
| Language of instructions | Chinese |
| Product warranty | 1 year |











Ducky One 3 Mechanical Keyboard, US Layout, 65% Size, Cosmic
Ducky One 3 SF 65% keyboard Cosmic
Product description

- Adopting Ducky's new design concept "QUACK Mechanics"
- Hot-swappable with Ducky's exclusive Kailh Yellow Sockets
- Various lighting modes with RGB LED
- Slim One 3 case and a wide range of colors
- Detachable paracord USB Type-C cable
- Useful mouse functions
- A small keyboard packed with features
- Supports Ducky Macro hardware. Customize functions to your liking!
- Thick PBT double-shot keycaps with no seams.
- Dual-layer sound damper made of high-quality silicone and EVA sound-absorbing foam provides an exceptional typing experience
- 3-position adjustable foot
The One 3 Series adopts Ducky's new design philosophy, QUACK Mechanics, focusing on achieving best-in-class aesthetics, hot-swap functionality, sound deadening, stabilization, and more.
The One 3 case is thin, but its unique three-layer structure allows for a variety of color combinations.
The One 3's silicone plate damper and EVA foam case damper ensure the best possible acoustics.
The Ducky One 3 series is hot-swappable thanks to the top-of-the-line Kailh Yellow Sockets, exclusive to Ducky.
It also features Ducky's V2 stabilizer, which improves stability, keystroke feel, and sound.
Additionally, it features thick, seamless double-shot PBT keycaps, 3-position adjustable feet, an improved PCB design, a detachable paracord USB Type-C cable, an improved macro layout, and more.

The QUACK Mechanics series uses only the finest materials, with keycaps made from True PBT.
The double-shot technique, which molds two resins simultaneously, creates seamless keycaps that will not fade even after years of use.
The matte finish on the surface is resistant to wear and tear, and maintains the same appearance as when you first purchased it, even with fast movement and prolonged use.

Weight distribution and a low case height improve overall keyboard stability, helping you maintain a stable posture even during the most demanding moments.
The front-to-back weight ratio is designed to keep the keyboard in a stable position, essential for advanced gaming and typing.

The multi-layered pads highlight the true sound of the switch and reduce unwanted noise during use.
Additionally, EVA foam padding is placed under the PCB to eliminate unwanted noise and further improve keystroke sound.

All Ducky One 3 mechanical keyboards are hot-swappable and use Kailh hot-swap sockets.
Kailh sockets, colored in vibrant yellow, are chosen for their high reliability.
Supporting hot swapping allows you to easily install and remove switches without soldering, allowing you to efficiently enjoy a variety of mechanical switches.
*When removing the key switch, if you apply excessive force or load to the circuit board, the switch and circuit board may be damaged.
In such cases, please note that the product may not be covered by the warranty.

It uses the highest frequency USB HID with a 1000 Hz polling rate.
This means that your keyboard is sending input signals to your PC 1000 times per second.

Improves lifespan and signal stability.
N-key or 6-key rollover options allow for any number of simultaneous key presses.

The two-position keyboard feet allow you to set the keyboard at three different tilt angles.

A stylish bezel design is used to match the various color variations of the keycaps.

Customize your keyboard with built-in effects.
Change the brightness, speed and color to make your keyboard shine in your own way.
Product features
Structure: MechanicalSwitches: Cherry MX mechanical switches
Backlight LED: RGB
Connection interface: USB 2.0
Keycap material: PBT
Key Output: USB N-Key Rollover
Key printing: Double shot (two-color printing)
Size: 335x110x40mm
Weight: 627g
Country of origin: Taiwan
DKONE3SERIES DK65SIZE
Contents
・Ducky One 3 main unit x 1・Paracord USB Type-C cable x 1
・Key removal tool with logo × 1
・Key switch puller x 1
・Replacement keycaps
・Instruction manual x 1
Each keyboard comes with a matching cable, replacement keycaps, and a logo-engraved key puller!
Please enjoy the world of Ducky in your favorite color.
We apologize for the inconvenience, but please download the instruction manual from the "Downloadable Product Content" at the bottom of the page or from the Ducky official website.
There is a QR code on the back of the white cardboard that comes with the keyboard. Please scan it.
Please go to [Products] → [Model name] → [Download] → [User manual] to download and use it.
Product information
| Item number | dk-one3-cosmic-rgb-sf |
|---|---|
| situation | New |
| Product sales/exporting countries | Taiwan |
| Packing weight (g) | 1000 |
Downloadable content for products
When updating the firmware, please follow this manual.
If you cannot press "Start" when updating the firmware, please refer to page 3 or later of the manual.
Check the model number written on the back of the keyboard and download the firmware for the same model number from the Ducky official website.
■To customers who purchased the Ducky One 3 Series:
We have confirmed that depending on the manufacturing date of the Ducky One 3, key input may occasionally become unresponsive or be interrupted.
The above issue can be resolved by updating the firmware, so we would appreciate it if you could try updating the firmware.
*Failures caused by installing incorrect firmware may not be covered by the warranty.
If the problem persists, please contact customer service and we will ask for your details.

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