Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Could anyone tell me where to ask question about hardware? Such as network interface card?
You can ask questions regarding computer hardware over at SuperUser.com. If your question concerns server hardware, there is an amount of crossover with Serverfault.com.
Update As of 2018, Hardware Recommendations is in beta.