Redragon UCAL K673 Pro

The Redragon UCAL K673 Pro is a compact mechanical keyboard designed for users who want a 65% layout with added function keys and versatile connectivity. It suits those needing a smaller footprint without sacrificing access to top-row F keys, such as office workers or gamers who prefer wireless or wired options. Its hot-swappable sockets appeal to hobbyists who like customizing switches without soldering.

Key Features

• 81-key layout retains the compact length of a 65% keyboard while adding dedicated function keys, eliminating the need for FN combos and improving convenience.
• Tri-mode connectivity includes USB-C wired, Bluetooth 3.0/5.0, and 2.4GHz wireless, allowing flexible use across devices and environments.
• Integrated control knob manages backlight brightness and media playback, reducing extra key clutter and speeding up adjustments.
• Hot-swappable sockets support most 3- and 5-pin switches, enabling easy switch replacement or customization without tools.
• Software support allows custom keybindings, macros, and lighting effects for personalized workflows or gaming setups.

Build Quality and Typing Experience

• Uses a gasket-mounted design with precision-locked covers to reduce noise and provide softer, more even typing feedback compared to screw-mounted boards.
• Includes dual sound-absorbing foams and silicone gaskets to minimize metal resonance and cavity noise, resulting in clearer switch sound.
• Mixed-color PBT keycaps offer a durable, smooth surface with a simple aesthetic.

Connectivity

• Wired USB-C connection ensures stable, low-latency input when needed.
• Bluetooth 3.0 and 5.0 modes provide compatibility with a wide range of devices, though Bluetooth latency and reliability can vary by environment.
• 2.4GHz wireless mode uses a USB dongle stored in a dedicated socket on the keyboard, reducing the chance of losing it.

Trade-offs

• The compact layout omits a numpad, which may be less suitable for users requiring frequent numeric input.
• Bluetooth 3.0 support is older and may offer lower performance compared to newer wireless standards.
• Unknown battery life and latency details for wireless modes limit assessment of wireless performance.