You need to find out rather or not the vendor has images available of the product they may be selling. When you're shopping personally, you have the option to look at goods close up, hold them in your hand, and study their texture. When you are shopping USB 3.0 HUB 4-port USB Hub, High-speed Splitter with Independent Switch One-to-four Splitter, Support Mobile Hard Disk, Notebook online, pics are the closest thing to that there is. I would not recommend buying from any on-line goods shop that doesn't display pictures of the product. You must research the online goods shop's shipping policy. How much will certainly shipping be? Is it free? If it's free, will it take an eternity to arrive? If I must pay for it, when can I expect my purchase to arrive? These are all traits 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, you need to find out what forms of payment the web page accepts. This seems like it may be obvious, but I won't be able to even count the times that I've found a wonderful quality item on a site, only to find out that they don't accept one of the forms of payment I have readily available.