42T4434 - Lenovo 90-Watts 20 Volt AC Adapter for ThinkPad T60, R60, Z60 without Power Cord

Technical Specifications:
- Input voltage: 100-240V ~ 1.5A, 50-60Hz
- Output voltage: 20V
- Output current: 4.5A
- Power output: 90W
- Connector size: 7.9mm x 5.5mm
- Efficiency: 87%
- Operating temperature: 0°C to 40°C
- Storage temperature: -20°C to 85°C
- Operating humidity: 5% to 95% non-condensing
- Dimensions: 5.2 x 2.2 x 1.2 inches
- Weight: 12.8 ounces

Helpful Notes:
1. This adapter is compatible with ThinkPad T60, R60, and Z60 models without a power cord.
2. The 7.9mm x 5.5mm connector size is a common size for Lenovo laptops.
3. The high efficiency rating means that this adapter wastes less energy and generates less heat than less efficient adapters.