This product is either discontinued or we cannot get that from suppliers.
TP-Link T1500-28PCT(TL-SL2428P), Interface 24 10/100Mbps RJ45 Ports, (Auto Negotiation/Auto MDI/MDIX), 4 10/100/1000Mbps RJ45 Ports, (Auto Negotiation/Auto MDI/MDIX), 2 Combo Gigabit SFP Slots, Power 100~240VAC, 50/60Hz, PoE Budget 192W, PoE+ Ports(RJ45) PoE+ Ports(RJ45) Standard 802.3at/af compliant, PoE+ Ports 24 Ports, Power Supply 180W.
The T1500-28PCT provides 24 10/100Mbps ports that supports 802.3at/af-compliant PoE, with a total PoE power supply up to 180W, powerful and flexible enough for users to deploy wireless access points or IP-based network surveillance cameras.