IMHO, if you must use CAT-6a, are in an industrial setting, leave your cables unplugged in a very dusty environment and either have LOTS of money (3M stuff is great but in can be expensive) OR are only installing a couple of these, then by all means, go for it.
In most instances, properly chosen unshielded CAT-5e cable (solid copper, no CCA) suited for the application (riser, plenum, outdoor, etc.), properly terminated to T-568 specs, deployed in a typical, non-industrial IP cam environment and part of a gigabit local network is VERY sufficient.
If you are concerned about either static (i.e., lightning) or EMI/RFI in the installation environment, then use shielded CAT-5e and shielded RJ-45 connectors, properly installed and grounded.
Just my opinion.