19V 2.1A 40W Laptop AC Power Adapter Charger, DC Plug 4.8x1.7mm Replacement for Chicony A13-040N3A A040R074L A12-040N2A, Universal Notebook Power Supply Cord with Stable Output

This 19V 2.1A 40W AC laptop power adapter is a high-quality replacement charger specially designed to substitute original Chicony power supply models including A13-040N3A, A040R074L and A12-040N2A. Equipped with a standard 4.8x1.7mm DC tip, it delivers tight, loose-free plug connection without intermittent power loss during laptop use.

Strictly calibrated to stable 19V 2.1A 40W rated output, the adapter maintains consistent charging efficiency for matched notebooks. Multiple built-in safety protection modules prevent damage from overvoltage, overheating, overload and short circuit, effectively safeguarding your laptop battery and internal motherboard.

Made of durable fire-resistant plastic housing, the charger features good heat dissipation to avoid overheating during long-hour continuous charging. It supports 100-240V wide AC input voltage, suitable for household power sockets worldwide.

Lightweight and compact in size, this power supply is easy to carry for office, travel and business trips. It serves as an ideal backup or replacement charger when your original Chicony adapter gets lost, broken or worn out, providing reliable long-term power supply for compatible laptops.