On the 19's when the matrix was in the basement, that outlet was the only one on the inverter in the basement. In 21 they moved the Matrix into the upstairs entertainment center, and moved the router, being the new Winegard system into the basement. The router took the place of the Matrix inverter outlet.
On the 19 I ran a power strip from the matrix plug, idea from Rick & HDGoldie, to have additional outlets on the inverter, mainly for my pressure washer.
Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold