From SEC website: https://www.secsports.com/about-secnetwork-plus
Q: What is the difference between SEC Network+ and ESPN+?
A: SEC Network+ is complementary to SEC Network offering exclusive digital events. It is accessible with your TV provider credentials and is available via the ESPN App on smartphones, tablets, connected streaming devices or espn.com/watch. ESPN+ is the No. 1 sports streaming platform, serving fans in the U.S. with exclusive access to more than 27,000 live sports events each year, an unmatched library of on-demand replays and acclaimed original content, and premium written articles by the top reporters and analysts from ESPN.com. Fans sign up to ESPN+ for just $9.99 a month (or $99.99 per year) at ESPN.com, ESPNplus.com or on the ESPN App (mobile and connected devices).
Q: If a game is airing on both SEC Network+ and ESPN+ simultaneously, where do I watch?
A: Both streams will be available in the ESPN App. SEC Network authenticated subscribers of AT&T TV, Cox, DIRECTV, DISH Network, fuboTV, Hulu + Live TV, Optimum, Sling TV, Spectrum TV, Suddenlink, Verizon Fios, Xfinity TV, YouTube TV, Vidgo, members of the NCTC, as well as those with access to SEC Network through TV connected devices, can watch the game via SEC Network+.
Q: ESPN+ is a paid subscription. Do I have to pay separately to access SEC Network+?
A: No. SEC Network+ is complementary to SEC Network and part of your subscription with your cable, satellite, or streaming provider.