UGREEN K331 Wireless Keyboard

The UGREEN K331 is a full‑size wireless keyboard with low‑profile scissor switches, designed for laptops, tablets and desktop use. It supports both a 2.4 GHz connection via a USB receiver and Bluetooth to up to three additional devices, allowing quick switching between a PC, tablet and phone. The keyboard includes a numeric keypad and a slim profile suitable for extended typing and office tasks.

The K331 has a built‑in rechargeable battery and a USB‑C charging port; it also provides multimedia FN shortcuts and dedicated key combinations for device/mode switching. Quiet key action and a shallow key travel make it comfortable for long typing sessions and for use in quiet environments.

Specifications

• Keyboard type: Full‑size, 104 keys (with numpad); scissor‑switch (low‑profile)
• Connectivity: 2.4 GHz (USB receiver) + Bluetooth 5.0/3.0 (up to 3 Bluetooth devices) — up to 4 devices total (1×2.4G + 3×BT)
• Key mechanism: Scissor‑switch (low‑profile)
• Ports: USB‑C charging port; includes 2.4 GHz USB receiver
• Battery: Built‑in rechargeable Li‑poly 400 mAh (USB‑C charge)
• OS compatibility: Windows, macOS, iOS, iPadOS, Android, Linux, Chrome OS (Windows/Mac modes)
• Features: Multimedia FN keys; device switching (Fn+1/2/3/~/), OS mode switch (Fn+Q / Fn+W)
• Dimensions (W×D×H): 365 × 123 × 7.1 mm
• Weight: Approximately 700 g
• Other: Approx. 6° tilt; silent keypresses; ultra‑slim profile