5520 24 1GB/10GB SFP+ PORTS 2 STACKING/QSFP28 PORTS 1 UNPOPULATED VIM SLOT 3 UNP
OPULATED MODULAR FAN SLOTS 2 UNPOPULATED MODULAR PSU SLOTS AC OR DC
5520 24 1Gb/10Gb SFP+ Ports 2 Stacking/QSFP28 Ports 1 Unpopulated VIM Slot 3 Unpopulated Modular Fan Slots 2 Unpopulated Modular PSU Slots AC or DC PSU capable. TAA Compliant