Buffalo BS-GS2024P 24-Port Gigabit Green Ethernet PoE Web Smart Switch with 2 SFP Slots Format: Rackmount Standards: IEEE802.3 (10BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3ab (1000BASE-T) IEEE802.1D Spanning Tree Protocol IEEE802.1w Rapid Spanning Tree Protocol IEEE802.1p Class of Service, Priority Protocol EEE802.1Q VLANs IEEE802.3ad (LACP) IEEE802.3az IEEE802.3af(PoE) IEEE802.3at(POE+) Primary Ports: 24 x 802.3at PoE+, 2 SFP (23, 24 and SFP ports cannot be used simultaneously) Primary Port Speed: 10/100/1000Mbps Switching Method: Store and Forward Jumbo Frames: 9216 bytes Buffer Memory: 1.5 MB Power: Power: Internal AC 100-240V, 50/60 Hz PoE Power Supply Functionr: Each port: up to 30W, Maximum PoE budget: 180W Power Consumptionr: Max 248.9W