305M Meter Gigabit Network Ethernet PC FTP Solid Copper Foilded Cat6e RJ45 Cable
...is packed with all sorts of nonsense. There's no such thing as "Gigabit ethernet" cable or "RJ45" cable and I'm not aware of there being a "cat6e" standard (yet.)
Of course it could just be that the seller doesn't understand what they are selling, or is trying to hook in as many Google searches as possible by including every buzzword imaginable. But I think I'd like to see a photo of the actual manufacturers label from the box before parting with my cash.
Avoid copperclad. I just had to instruct an electrician to re-wire a whole retail store(3000mtrs of cable) because he went cheap and none of it would pass CAT5e standards. The box stated up to 80mtrs before installation. So every time the cable got kinked\bent (which happens a lot on installation) it lost up to 5mtrs. So when a 50m run was tested it would come out at 75m due to the poor conductivity of the cable. Skew was horrendous as well.
I think he wanted to cry.
Decent wholesalers now weigh the boxes to check as copper is heavier than steel or aluminium.