Makes sense, but my point was that I've never even seen an option to buy one kind of ethernet cable or other. Is it safe to assume the $15 StarTech cables I buy

Makes sense, but my point was that I've never even seen an option to buy one kind of ethernet cable or other. Is it safe to assume the $15 StarTech cables I buy from Newegg are unshielded? And does the "TP" stand for "Twisted Pair"?