Adam swaps the south coast for north east Hampshire, to join Farnborough ahead of a new season in The Vanarama National League South.
A regular fixture in Greg Miller’s Portsmouth Under 18’s side last season, Payce bagged 14 goals in 31 appearances last term.
The young midfielder experienced football in the Papa John’s Trophy in the 2021/22 and 2022/23 seasons and caught the eye of Boro boss this Pre-Season.
Commenting on his new addition, Manager Spencer Day said: “An exciting prospect who skippered Portsmouth last year, chipping in with numerous goals and assists.
“I’m pleased he’s chosen us to help his development and despite his young age, has already shown numerous moments that shows he can have a great future in the game.”
View the updated Squad list.