What is the difference between Cat6 and Cat6a cable?

The Category 6a, or Cat6a, cable is the latest iteration of Gigabit Ethernet cabling. The a stands for “augmented” and is a nod to Cat6a’s improved specifications compared with its predecessor, the Category 6, or Cat6 cable.

The Cat6a doubles data transmission bandwidth, from 250 to 500 MHz; decreases the chance of crosstalk interference; and provides superior reliability and transmission speeds through greater lengths of cable. Unlike most Cat6 cables, Cat6a cables are also often shielded, making them ideal for industrial use where additional interference may be a concern.