Brand Compatibility & Technical Specifications
We stock one of the widest selections of AC adapters in Hong Kong. Below is a quick reference guide for our most common OEM-grade replacements:
| Brand | Wattage Range | Common Connector Sizes (OD x ID) |
|---|---|---|
| ASUS | 65W - 280W | 4.0x1.35mm / 6.0x3.7mm (ROG Series) |
| Acer | 45W - 180W | 3.0x1.1mm / 5.5x1.7mm |
| Dell | 45W - 130W | 4.5x3.0mm / 7.4x5.0mm (Smart Pin) |
| HP | 45W - 150W | 4.5x3.0mm (Blue Tip) |
| Lenovo | 65W - 300W | 4.0x1.7mm / Square Tip (Slim Tip) |
Important Note (Limitation): While "universal chargers" with interchangeable tips seem convenient, they often lack the precise voltage regulation required by high-end laptops. For devices drawing over 90W (especially gaming laptops), we strongly recommend our brand-specific or OEM-grade adapters to prevent motherboard VRM (Voltage Regulator Module) damage.
Frequently Asked Questions (FAQ)
Q: Can I use a charger with a higher wattage (e.g., 90W) on a laptop that only requires 65W?
A: Yes. Your laptop will only draw the current (Amps) it needs. A higher wattage charger will run cooler and is perfectly safe. However, you must never use a charger with a lower wattage than required, as this will cause the adapter to overheat and potentially fail.
Q: How do I know which connector tip my laptop uses?
A: Connector sizes are measured by their outer and inner diameters in millimeters. Since visual estimation is prone to error, we highly recommend bringing your laptop to our physical store. Our technicians will use digital calipers to find the exact fit. Alternatively, you can WhatsApp us your exact laptop model number for an instant match.