Hello,
the following models of the Switch support the PoE function:
S5700
S5700-24TP-PWR-SI
S5700-28C-PWR-EI
S5700-48TP-PWR-SI
S5700-52C-PWR-EI
S5700-28C-PWR-SI
S5700-52C-PWR-SI
S5700-28P-PWR-LI-AC
S5700-52P-PWR-LI-AC
S5710-28C-PWR-LI
S5710-52C-PWR-LI
S3700
S3700-28TP-PWR-EI
S3700-52P-PWR-EI
S3700-28TP-PWR-SI
S3700-52P-PWR-SI
S2700
S2700-26TP-PWR-EI
S2700-9TP-PWR-EI
S2700-52P-PWR-EI
S2710-52P-PWR-SI
Glad to help you! Any further questions, let us know.