Black Box products can be conveniently purchased through a broad range of qualified distributors and resellers located around the globe

Black Box Explains...     
Category Wiring Standards
There are two primary organizations dedicated to developing and setting structured cabling standards.

CATx Cables

From legacy network CAT3 and CAT5 cable to GigaBase® CAT5e and GigaTrue CAT6 and CAT6A Ethernet cables, you’ll find the right cable for every application and every network. 

ETL Verified and HDBaseT Recommended CAT5e, CAT6, and CAT6A backbone cable.

CAT5, CAT5e, CAT6, and CAT6A cable for equipment, patch panel, and desktop connections