TP-Link JetStream 28-Port Gigabit PoE Smart Switch (TL-SG2428P) - with 24 x PoE4pcs per master boxHARDWARE FEATURESStandards and ProtocolsIEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE802.3z, IEEE 802.3ad, IEEE 802.3x, IEEE 802.3az, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1p, IEEE 802.1xInterface• 24× 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX)• 4× Gigabit SFP SlotsNetwork Media• 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m)• 100BASE-TX/1000Base-T: UTP category 5, 5e or above cable (maximum 100m)• 1000BASE-X: MMF, SMFFan Quantity2PoE+ Ports(RJ45)• Standard: 802.3at/af compliant• PoE+ Ports: 24 Ports• Power Supply: 250 WDimensions ( W x D x H )17.3 × 8.7 × 1.73 in (440 × 220 × 44 mm)MountingRack MountableMax Power Consumption• 32.1 W (110 V/ 60 Hz with no PD connected)• 308.6 W (110 V/ 60 Hz with 250 W PD connected)Max Heat Dissipation• 109.53 BTU/h (with no PD connected)• 1052.94 BTU/h (with 250 W PD connected) PERFORMANCEBandwidth/Backplane56 GbpsPacket Forwarding Rate41.7 MppsMAC Address Table8KPacket Buffer Memory4.1 MbitJumbo Frame9 KB