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Thank you for your question. The Alienware m16 R1 typically requires a power adapter with a wattage significantly higher than 90W to run optimally and charge effectively, often needing a 240W or even a 330W adapter depending on the specific configuration (CPU and GPU). While our Insignia™ Universal 90W Laptop Charger might power your Alienware m16 R1 to some extent for basic tasks, it is highly unlikely to keep it running at full performance, especially during demanding tasks like gaming, and it will likely not charge the battery, or charge it very slowly. The laptop may even display warnings about insufficient power. Using a charger with insufficient wattage can strain both the charger and your laptop's power system over time. For the best performance and to ensure proper charging, we strongly recommend using the original power adapter that came with your Alienware m16 R1 or a compatible, high-wattage replacement (240W or 330W) designed for gaming laptops. If you have any other questions or need further assistance, feel free to ask! - Mae | Insignia Support
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