Upgrade your surveillance or network setup with the **Dahua S3228-24GT-375 28-Port Unmanaged Gigabit PoE Switch**, engineered for demanding PoE applications like IP cameras, access points, and high-power security devices. This high-performance switch features 24 × 10/100/1000 Mbps PoE ports, plus 2 × Gigabit RJ-45 uplink ports and 2 × 1000 Mbps SFP uplink ports for flexible connectivity and smooth video streaming. Supporting IEEE 802.3af/at/bt and Hi-PoE standards, ports 1-2 deliver up to 90W each for power-hungry devices, while ports 3-24 provide up to 30W per port — with a massive 375W total PoE budget to keep your entire system powered reliably. Enjoy extended reach with long-distance PoE transmission up to 250m (at reduced 10Mbps bandwidth), perfect for large-scale installations without extra repeaters. Advanced smart features include: PoE Watchdog: Automatically detects and reboots faulty cameras for minimal downtime and reduced maintenance VIP Ports: Prioritizes traffic on ports 1-8 for critical video feeds Port Isolation: Prevents device-to-device communication for enhanced security and storm protection Built-in protections: 6kV contact/8kV air ESD, 4kV common/2kV differential lightning surge resistance 4 DIP switches for easy mode selection (PoE watchdog, long distance, VIP, isolation) With a 56 Gbps switching capacity, 41.66 Mpps forwarding rate, and 4 Mbit buffer, it ensures lag-free Gigabit performance. Operates from -10°C to 55°C, features a sturdy sheet metal case, and supports rack or desktop installation. Ideal for homes, offices, factories, schools, hotels, and CCTV systems requiring stable, high-power PoE expansion. Reliable, plug-and-play design backed by Dahua quality — power your network and capture every detail without interruption! Category Parameter Specification Hardware Ethernet Ports 24 × RJ-45 10/100/1000 Mbps (PoE) Uplink Ports 2 × RJ-45 10/100/1000 Mbps 2 × SFP 1000 Mbps PoE Ports Ports 1-24 Power Supply Built-in: 100-240 VAC, 50/60 Hz, 7 A Operating Temperature –10 °C to 55 °C ( 14 °F to 131 °F) Operating Humidity 5%–95% (RH), non-condensing Storage Temperature –40 °C to 75 °C (–40 °F to 167 °F) Storage Humidity 5%–95% (RH), non-condensing Power Consumption Idling: ≤12.5 W; Full load: 400 W Net Weight 2.66 kg (5.86 lb) Gross Weight 3.26 kg (7.19 lb) Dimensions (L × W × H) 440 mm × 220 mm × 44 mm (17.32″ × 8.66″ × 1.73″) Installation Rack mount; Desktop mount Casing Material Sheet metal Performance Management Type Unmanaged Switching Capacity 56 Gbps Packet Forwarding Rate 41.66 Mpps Packet Buffer Size 4 Mbit Jumbo Frame 15K Byte MAC Table Size 8 K Standards IEEE802.3; IEEE802.3u; IEEE802.3x; IEEE802.3ab; IEEE802.3z PoE Features PoE Protocol IEEE802.3af; IEEE802.3at; Hi-PoE; IEEE802.3bt PoE Power Budget Total ≤375 W (approximate based on model naming and vendor references) Per Port Power Ports 1-2 ≤90 W; Ports 3-24 ≤30 W PoE Pin Assignment 1,2,4,5 (V ), 3,6,7,8 (V-) Advanced Features Long Distance PoE Up to 250 m (bandwidth reduced to 10 Mbps) PoE Watchdog Yes (auto-reboot faulty devices) VIP Ports Yes (prioritizes ports 1-8) Port Isolation Yes Protection ESD Protection Air: 8 kV; Contact: 6 kV Lightning Protection Common mode: 4 kV; Differential mode: 2 kV Certifications Certifications CE
