1.Are you factory or trading company?We are a professional manufacturer since 2009. Our factory passed ISO9001:2005, we located in a separated industrial zone with 30.000 square meters area.2.Can I get some samples to test the quality?We welcome sample orders to test quality for new customers. Contact us to talk about details.3.What’s the Payment options?We accept T/T, Paypal, Western Union & payment through Alibaba Trade Assurance (include VISA, Mastercard, e-checking, T/T).4.How do you control quality?Quality is priority. We test each product carefully before sending out. We have very strict quality control process to ensure good quality.5.What about your after-sales service?13 months warranty for Network cards and Network switch, 3 years for Industrial products. If there is any problem or question about your order, we will follow up and solve the problem promptly.6.Can you do OEM & ODM?Yes, we can support OEM & ODM service, you can choose neutral products, products with our brand or customized products with your own logo.Customizing package is also welcomed if MOQ reach to 1000pcs.