Here are the specifications for the Acer laptop adapter you described:
- **Brand:** Acer
- **Power Output:** 65 watts (19V * 3.42A)
- **Voltage:** 19 volts (19V)
- **Current:** 3.42 amps (3.42A)
- **Connector Size:** 4.0mm x 1.35mm
This adapter is designed to provide power to Acer laptops that require a 19V power supply with a current rating of 3.42A and use a connector with dimensions of 4.0mm x 1.35mm.
Please ensure compatibility with your specific Acer laptop model before purchasing to ensure it will work correctly. It's crucial to use an adapter with matching specifications to avoid damage to your device.