If you are thinking about a deployment of 10GbE connectivity in the rack and in the datacenter you will be probably comparing fiber with copper and then even within the latter there are some alternatives. In internet a strong tendency of using SFP+ (or even the somewhat older CX4) using mostly passive twinax cables can be… Continue reading SFP+ vs RJ45 10GbE, aka 10GBASE-CR on twinax vs 10GBASE-T on cat6