Bests & Worsts Reviews from Amazon

I'll make it short and sweet. Purchased and didn't open for a few weeks due to me not needing to use it yet. Opened today to use on my work laptop and link speed was only 100/100mbps. I updated drivers, and tried again. Same result. Tried on 2 other PCs that have 2.5Gb connections and still 100/100mbps. Tried to plug into a different port on the modem and still the same 100/100mbps. Not good. I would normally just request another cable, but I'm not taking any chances. I'll just move onto another company.