48-port; 24-port 1GbE/10GbE SFP+, 24-port 100MbE/1GbE SFP, 4xQSFP (either 2x100GbE or 4x40GbE), modular slot, bundle includes 1 250W AC PS and 1 fan, front to back airflow, transceivers sold separately, 3 years 24x7 remote support