Staked FRAX (SFRAX) is a cryptocurrency that is pegged to the value of the stablecoin FRAX and allows users to earn additional rewards by staking their tokens. Staking involves locking up tokens in a wallet to support the network and earn staking rewards. SFRAX aims to provide users with a way to earn passive income while also contributing to the stability of the FRAX stablecoin. It is important for users to conduct their own research and understand the risks associated with staking before participating in the SFRAX ecosystem.