The NCF booster signal L is a much lower solution for supporting your cables such as HDMI, USB, RCA etc as it sits only 23mm off the surface on which it is placed.
Usual performance improvements can be expected as with the standard booster signal.
The Collaro Audio Precision Turntable Mat provides a precise support of the record on the platter whilst protecting the groove from damage that can be sustained using a hard surface such as glass or metal.