When choosing a native IP US VPS cloud server, you can consider the following factors:

1. Reliable service provider: It is crucial to choose a reputable and reliable service provider. Research and evaluate different VPS providers, check out their service records, user reviews, customer support, and more.

2. Data center location: Make sure that the selected VPS server is located in the United States. Know the location of the service provider's data center and confirm its availability in the United States. Choose a data center that is closer to where your target audience or business requires, for lower latency and faster response times.

3. Network performance and bandwidth: understand the network performance and bandwidth limitations of the VPS provider. Check their network architecture, network interconnectivity and bandwidth specifications. Make sure they provide stable, high-speed network connections to meet your business needs and user experience requirements.

4. Scalability and elasticity: Consider the scalability and elasticity of the VPS provider. Make sure they offer flexible resource scaling options such as increased computing power, storage space, bandwidth, etc., based on your needs. This way, you can easily upgrade and adjust as your business grows.

5. Security and privacy protection: Make sure the VPS provider has taken appropriate security measures to protect your data and servers. Learn about their security practices, including network protection, firewalls, data encryption and backups, and more. In addition, review the privacy policy of the service provider to ensure that they respect user privacy and comply with relevant laws and regulations.

6. Price and contract terms: Consider the price and contract terms of the VPS. Compare the pricing models, billing methods, and contract terms of different providers, and choose the plan that suits your budget and business needs. Also, read the terms of the contract to make sure you understand terms such as service-level agreements, refund policies, and technical support.

7. Technical support and management: understand the technical support and management services of VPS providers. Confirm that they offer 24/7 technical support so that you can get timely assistance should you need it. Learn about their management control panel, API interface, monitoring tools, etc., so that you can manage and monitor your VPS server conveniently.

To sum up, when choosing a native IP US VPS cloud server, you need to consider factors such as the service provider's reliability, data center location, network performance, scalability, security, price, technical support and management. By carefully evaluating and comparing different options, you can choose the best VPS cloud server for your needs.