The Dahua CS4226-24ET-240 is a professional 26-port cloud-managed PoE switch designed for IP surveillance, networking, and security installations. It provides 24× 10/100 Mbps PoE ports for connecting IP cameras, access points, VoIP devices, and other powered network equipment, plus 2× Gigabit combo uplink ports supporting both RJ45 and SFP connectivity. With a 240W total PoE budget, the switch supports IEEE 802.3af, 802.3at, Hi-PoE, and IEEE 802.3bt, with up to 90W available on selected ports. It also features PoE power management, PoE Watchdog, and 250m Long-Distance PoE transmission, making it particularly suitable for CCTV deployments where cameras may be installed far from the network cabinet. The CS4226-24ET-240 supports cloud management through Dahua DoLynk Care, as well as local web and app management. Layer 2 functionality includes VLAN, loop protection, flow control, DHCP client support, and a switching capacity of 8.8Gbps. Its metal enclosure supports both desktop and rack installation.