You need to find out rather or not the vendor has photographs available of the product they are really selling. When you're shopping personally, you have the option to look at things close up, hold them in your hand, and study their texture. If you are shopping Intel Atom Z8350 Quad Core Windows 10 Mini PC stick computer HD HTPC with 2GB 4GB RAM 32GB 64GB ROM USB 3.0, HD-MI, WIFI online, pictures are the closest thing to that there is. I would not advise buying from any on the web goods shop that doesn't present pictures of the product. You must research the online goods shop's shipping policy. How much should shipping be? Is it free of charge? If it's free, will it take an eternity to arrive? If I must pay for it, when can I anticipate my purchase to arrive? These are all things you as a consumer should know, and you can usually easily find the answers to these questions by find a "Shipping Policy" or "FAQ" page on the site. Last, but certainly not least, it is advisable to find out what forms of payment the web page accepts. This seems like it could be obvious, but I can't even count the times that I've found a wonderful quality product on a site, only to find out that they don't accept the forms of payment I have offered.