Cable Identification Label Cable Identification Done Right! It's a Snap! Unitag cable identification labels were developed to provide a quick, easy method to clearly label virtually any type or size cable or groups of cables. Unitag cable labels are easy to read. They can be oriented to be easily read in hard to reach areas, behind computer desks and crowded wiring closets. The marking surface can be rotated 360 for easy viewing. Unitag labels are easily installed. They are interchangeable and reusable. A marking pen can be used directly on the surface or a label machine can be used.