Savio CL-38 HDMI cable 15 m HDMI Type A (Standard) Black

AWG (American wire gauge, also known as Brown & Sharpe wire gauge) - a standardized system for electrical wire size used in the United States. Conductor cross section directly transferred to the maximum current that can safely lead wire.
With the increasing number AWG wire thickness decreases.
OD - this parameter determines the diameter of the cable