Most Gigabit Ethernet products require optimum wiring environments with Category 5e or higher. While these products often still connect in less than perfect environments, the result is a number of retransmissions. Just a 1% retransmission rate reduces the bandwidth by 80% (see chart). WideBand products are WGNA Certified to work on all types of Category 5 at 100 meters with less than 1 bit per million error rate. This means the full Gigabit of bandwidth can be delivered Without Rewiring.