100-Ft RJ45 Cat-6 Gigabit Ethernet Cable for $9.25 shipped.  It is sold by digitide through ebay.  Here is a screenshot for your reference.  Cat-6 cables provide higher speed than Cat-5e cables and are useful for gigabit wired network.  As a comparison, the least expensive 100-ft Cat-6 cable at Office Depot goes for over $55.