Digital Power Meter PoE Switches

Explore All Digital Power Meter PoE Switches

Unmanaged 4 Channel PoE Switch, 6 Ports Gigabit with 1 PoE++ 60W and 3 PoE+ 25.4W, 2 Uplink RJ45, VLAN & 250m Long Distance, Desktop/Wall Mount for Surveillance & SMB

4 channel PoE switch with 1 PoE++ 60W port and 3 PoE+ ports, 2 uplink Gigabit ports, VLAN isolation, 250m long-range mode, plug-and-play, metal case — ideal for hotel, shop, and office IP camera networks.

SG420P-DPM
Port Description

4 PoE ports (10/100/1000Base-T, 1x PoE++ 60W, 3x PoE+ 25.4W) + 2 uplink ports (10/100/1000Base-T, non-PoE).
  • 4 PoE ports on a single 4 channel PoE switch: 1× PoE++ 60W + 3× PoE+ 25.4W – addresses mixed power needs
  • DIP switch toggles VLAN isolation + 250-meter long-range mode (ports 1-4 drop to 10 Mbps)
  • Digital tube shows real-time PoE power utilization – no guessing
  • Plug-and-play, zero configuration – auto-detects PoE vs. non-PoE devices
  • Metal housing, fanless natural cooling – reliable in warm environments (-20°C to 60°C)
  • Optional surge protection (6KV common mode / 4KV differential) and AI watchdog for fault recovery









What Makes This 4 Channel PoE Switch Different for Your Network?

If you’re setting up a small surveillance system or expanding an office LAN, you’ve probably hit the wall with distance limits or power budget issues. This unmanaged 4 channel PoE switch gives you exactly what you need without the complexity of managed gear. It’s a straightforward workhorse: six Gigabit ports total, with four of them delivering Power over Ethernet. One port (port 1) supports IEEE 802.3bt PoE++ up to 60W — enough to drive a high-power PTZ camera or a Wi-Fi 6 access point. The other three PoE ports (ports 2-4) deliver 25.4W each per IEEE 802.3af/at, covering most standard IP cameras and VoIP phones.

Here’s the real kicker for long runs: flip the DIP switch, and ports 1-4 drop to 10 Mbps but extend transmission up to 250 meters over existing twisted-pair cable. That’s a lifesaver when you’re trying to reach a far corner of a warehouse or a parking lot. At the same time, those four ports enter VLAN isolation (they cannot talk to each other), which cuts broadcast storms and improves security — perfect for isolating camera traffic from the rest of your network. The two uplink ports (5-6) remain open for upstream connections.

No configuration, no software headaches. Just plug in your PoE devices, and the switch auto-detects whether the powered device supports PoE before delivering power, so non-PoE gear stays safe. The front digital tube shows you the current PoE power usage percentage at a glance — handy for planning expansion. The metal case dissipates heat naturally (no noisy fan), and you can set it on a desk or mount it on a wall. For extra peace of mind, an optional surge protection (6KV common mode / 4KV differential mode) and AI watchdog (auto-restart port if no data traffic for ~3 minutes) are available.

Who uses this? Hotel maintenance teams deploying cameras in corridors, small retail shops integrating POS and IP cameras, IT admins setting up remote monitoring in multi-tenant buildings, and any small-to-medium business that needs reliable PoE without the IT overhead.

Technical Specifications

  • Standards: IEEE802.3 10Base-T, 802.3u 100Base-TX, 802.3ab 1000Base-T, 802.3af/at/bt PoE, 802.3x flow control
  • Ports: 4× 10/100/1000Base-T PoE (1× PoE++ 60W, 3× PoE+ 25.4W), 2× 10/100/1000Base-T uplink
  • Switching capacity: 12 Gbps
  • Packet forwarding rate: 8.928 Mpps
  • MAC table: 2K
  • Jumbo frame: 9K
  • PoE pin assignment: 1/2+, 3/6-
  • Power input: AC 100~240V, 50Hz
  • Power consumption: <3W (idle), ≤65W (full load)
  • Operating temperature: -20°C ~ +60°C
  • Storage temperature: -20°C ~ +85°C
  • Humidity: 5% ~ 95% (non-condensing)
  • Dimensions: 203×140×44mm
  • Weight: 0.7 kg (unit), 0.9 kg (shipping)
  • Casing: Metal, fanless
  • Installation: Desktop or wall-mount
  • Warranty: 3 years


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