The K21 USB Charger by SINOAMIGO Electric is a compact and efficient charging solution in keystone format, ideal for integration into modular wall plates, patch panels, and furniture-based power systems. Featuring a USB Type A output with a maximum power delivery of 5W, the K21 is designed to support charging for phones, Bluetooth accessories, and other low-power USB devices. It offers a universal AC input (100–240V) and delivers reliable performance with low power loss and high conversion efficiency. Its flame-retardant PC housing and compact design (16.1 × 14.5mm) make it an excellent choice for residential and commercial installations where space efficiency and safety are paramount.
Specifications:
Product Model: K21
USB Output Port: 1 × Type A
USB Output Power: 5W Max
USB Output Voltage: 5V DC (assumed typical)
USB Output Current: 1A Max (assumed typical)
Output Voltage Tolerance: ±5% (typical)
Input Voltage: 100–240V AC, 50–60Hz
Conversion Efficiency: ≥78%
No-load Power Consumption: ≤0.2W
Material: PC (Polycarbonate)
Dimension: 16.1 × 14.5mm
Surface Finish: Matte / Glossy (please confirm)
Connection Mode: Screw Terminals
Working Temperature: -10℃ to +40℃
Working Humidity: 20% – 90% RH
Storage Temperature: -20℃ to +85℃
Storage Humidity: 10% – 95% RH
Color Options: White, Black
Typical Applications:
Keystone wall plates for homes and offices
Modular patch panels with integrated USB charging
Custom furniture panels and workspace cubicles
Hospitality rooms and guest desk outlets
Low-power USB charging points in public or shared spaces
Packing List:
1 × K21 Keystone USB Charger Module
1 × User Manual
1 × Packing Box
About Manufacturer:
SINOAMIGO Electric was founded in 2010 by a team of professionals with deep expertise in electrical engineering. Headquartered in China, the company is committed to delivering high-quality, innovative products including Floor Outlet Boxes, Desktop Sockets, and Modular Wiring Accessories. With a strong emphasis on sustainable value, design excellence, and global customer satisfaction, SINOAMIGO has earned a reputation for reliability and innovation in more than a decade of service. Its products are known for integrity, safety, efficiency, and user-centered design.
