The Redragon Ucal K673 PRO (specifically tracking under factory manufacturing code K673CPG-RGB-PRO) is a highly popular, feature-rich 75% gasket-mounted wireless mechanical keyboard. It marks a major step forward for the brand by incorporating premium enthusiast build trends—like custom sound dampening and gasket mounting at an accessible price. 

Core Technical Specifications

1. 75% Optimized Layout (81 Keys): Removes the large number pad but keeps a full dedicated row of function keys (F1–F12), a vertical navigation navigation track, and standalone arrow keys.
2. True Gasket-Mounted Structure: The internal switch plate sits locked inside precision covers lined with rubber cushions instead of hard structural screws. This creates an even layout flex that absorbs stiff typing impacts and yields a softer, cushioning key feel.
3. 5-Layer Premium Noise Dampening: Completely packed with 3.5mm PO foam, IXPE switch foam, an integrated PET sound pad, lower socket foam, and a custom silicone bottom pad. This complex layering eliminates hollow plastic echoing, helping the board deliver a clean, deep sound signature.
4. Tri-Mode Wireless Connectivity: Seamlessly shifts inputs using a side-mounted hardware slider switch. It connects via ultra-low latency 2.4GHz wireless (using the included side-docked nano dongle), Bluetooth 3.0/5.0 (pairing across 3 separate device channels), or a stable wired USB-C link.
5. Solderless Hot-Swap Sockets: The upgraded PCB handles nearly any aftermarket 3-pin or 5-pin MX-style mechanical switches (such as Gateron, Cherry, or Outemu) without soldering. Out of the box, it comes loaded with smooth, factory-lubed Hi-Fi Linear Red Switches.
6. Massive 4000mAh Battery: Houses one of Redragon's largest batteries to guarantee lasting wireless deployment. You can instantly check your remaining percentage on the fly by pressing FN + Alt—the top number row lights up to reflect your current charge layer