You need to find out rather or not the vendor has pics available of the product they are 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're shopping Network security i7 4500U 5500U i5 5200U 4200U i3 5010U 400U i211AT 6LAN CONSOLE NGFF_SSD Firewall Router AES-NI Pfsense Mini PC online, images are the closest thing to this there is. I would not recommend buying from any on the net goods shop that doesn't show pictures of the product. It is advisable to 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 need to 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, you have to find out what forms of payment the site accepts. This seems like it would be obvious, but I aren't even count the times that I've found a wonderful quality product on a site, only to find away that they don't accept one of the forms of payment I have readily available.