Power adapter Asus 45W 19V 4.5mm PHI connector

Asus 45W power adapter with 19V output and 4.5mm PHI rounded connector provides stable external power for compatible Asus laptops. Compact and lightweight, the adapter is intended as a replacement for original power supplies that use the same voltage and connector type. It is suitable for everyday charging and operation, offering a simple plug-and-play connection that supports uninterrupted work at home, in the office or on the go.

Advantages

The adapter delivers a steady 19V output and up to 45W power, designed to meet the electrical requirements of compatible laptop models. Its 4.5mm PHI rounded connector ensures a secure physical connection with matching laptop sockets. The compact housing and detachable cable design make the unit convenient to carry and store, while built-in protection features help guard against overcurrent, short circuit and overheating within specified operating conditions.

Suitable for

• Powering and charging Asus laptops that accept a 19V input and 4.5mm rounded PHI connector
• Replacing lost or damaged original adapters with matching voltage and connector type
• Portable use during travel, commuting, or remote work
• Home and office use where a compact, external power supply is preferred

Key specifications

• Output voltage: 19V DC
• Maximum output power: 45W
• Connector type: 4.5mm rounded PHI barrel connector
• Form factor: external AC adapter (wall-mounted brick with cable)
• Input: standard AC mains compatible with regional plugs (check local socket requirements)

How to use

Connect the adapter to an appropriate AC mains outlet using the supplied power cord or a compatible regional lead. Insert the 4.5mm PHI connector firmly into the laptop’s power socket until it seats securely. Verify that the laptop indicates charging or power status according to its own LEDs or software indicators. When disconnecting, unplug the connector from the laptop first and then remove the mains plug. Use the adapter only with devices that require 19V and accept the 4.5mm PHI connector.

Usage recommendations

Operate the adapter in a well-ventilated area and avoid covering it while in use to prevent heat build-up. Ensure the laptop model supports 19V input and the 4.5mm PHI connector before use. If the adapter becomes unusually hot, emits a smell, or fails to charge, disconnect it immediately and consult a qualified technician. Store the adapter in a dry place and avoid exposure to liquids, extreme temperatures, or heavy impacts.