Digital Power Meter PoE Switches

Explore All Digital Power Meter PoE Switches

Unmanaged 4 Port PoE Gigabit Switch, 2 RJ45 Uplink + 2 SFP Slots, 60W PoE++, VLAN/Extend Mode, Desktop & Wall Mount for IP Surveillance

4 port PoE gigabit switch with 120W total budget, 60W on port 1, 2 uplink RJ45 + 2 SFP slots, VLAN isolation, 250m extend mode. Plug-and-play metal housing for SME surveillance setups.

SG422P-DPM
Port Description

4 x 10/100/1000Base-T PoE ports (Port 1: 60W, Ports 2-4: 30W each), 2 x 10/100/1000Base-T uplink RJ45 ports, 2 x 1000Base-X SFP slots
  • Port 1 delivers 60W PoE++ (IEEE 802.3bt) – enough for PTZ cameras or high-power access points
  • One-key VLAN mode isolates ports 1-4 to eliminate broadcast storms in surveillance networks
  • 10M extend mode pushes PoE + data up to 250 meters over standard Cat5e
  • AI_PoE mode automatically detects and reboots stuck IP cameras
  • 120W total PoE budget across all four PoE ports
  • 2 SFP slots for fiber uplink up to 100km, useful for long-distance backhaul
  • All RJ45 ports include 6kV surge protection (common + differential mode)
  • Metal housing with built-in power supply, natural heat dissipation, no fan noise
  • Completely plug-and-play – zero configuration needed









Built for real surveillance jobs – the 4 port PoE gigabit switch that actually handles high-power cameras

You’ve probably dealt with PoE switches that struggle to power PTZ cameras or long-distance runs. This 4 port PoE gigabit switch (SG422P-DPM) changes that. Port 1 delivers a full 60W – enough for the latest high-draw PTZ or dome cameras – while ports 2-4 each give you 30W. Total PoE budget hits 120W, so you can run four power-hungry devices without worrying about overload. And because it’s a true gigabit switch (all ports negotiate at 10/100/1000 Mbps), your video streams won’t get bottlenecked.

The real kicker? The hardware toggle for VLAN mode. Flip it, and ports 1-4 are isolated from each other but still talk to the uplink ports. That kills broadcast storms dead – a common headache in flat surveillance networks. There’s also a 10M extend mode that pushes PoE and data up to 250 meters over Cat5e, saving you from pulling extra cable or adding extenders. Plus, the AI_PoE mode automatically reboots stuck IP cameras, which every installer will appreciate.

We made the physical design with IT staff in mind: metal housing with internal power supply, no noisy fans, and natural heat dissipation that keeps it running stable from -20°C to 60°C. Surge protection (6kV common/differential mode) on every Ethernet port means fewer field failures in outdoor or warehouse deployments. And since it’s completely unmanaged – just plug in and it works – you can hand it to a junior tech without any configuration.

Who should buy this 4 port PoE gigabit switch? Small to medium business owners setting up IP cameras in retail stores, hotels, or warehouses. IT admins needing a cost-effective drop for a handful of PoE endpoints. Residential installers pulling surveillance lines in apartment buildings or smart homes. If you need a reliable, low-hassle PoE switch that can handle 60W devices and long cable runs, this one’s worth a hard look.

Standards & Protocols

  • IEEE 802.3 10Base-T, 802.3u 100Base-TX, 802.3ab 1000Base-T, 802.3z 1000Base-SX/LX, 802.3x flow control

Ports

  • 4 x 10/100/1000Base-T PoE RJ45 (Port 1: 60W, Ports 2-4: 30W)
  • 2 x 10/100/1000Base-T uplink RJ45
  • 2 x 1000Base-X SFP slots (1.25Gbps, multi-mode up to 2km, single-mode up to 100km)

PoE

  • Total PoE budget: 120W
  • PoE pin assignment: 1/2+, 3/6-
  • Standards: IEEE 802.3af/at/bt (Port 1 supports bt up to 60W)

Switching Performance

  • Switching capacity: 16Gbps (non-blocking)
  • Packet forwarding rate: 11.904Mpps @ 64 bytes
  • MAC address table: 2K
  • Packet buffer: 384K (with flow control)
  • Jumbo frame support: 15K
  • Store-and-forward, full/half duplex auto-negotiation, auto MDI/MDI-X

Transmission Distance

  • 10Base-T: ≤ 250m (Cat3/4/5 UTP)
  • 100Base-TX: ≤ 100m (Cat3/4/5 UTP)
  • 1000Base-T: ≤ 100m (Cat5 UTP)
  • 10M extend mode: ≤ 250m (Cat5e UTP)

Surge Protection

  • 6kV common-mode, 6kV differential-mode on all Ethernet ports

LED Indicators

  • Power (PWR): green
  • SFP indicators (SFP7-8): green
  • Link/Act: yellow per Ethernet port

Power Supply

  • Input: AC 100-240V, 50-60Hz
  • Standby power: ≤ 4W
  • Full load power: ≤ 120W

Physical & Environment

  • Housing: Metal, built-in power supply, natural heat dissipation
  • Dimensions: 201 x 140 x 45 mm (7.9 x 5.5 x 1.8 in)
  • Net weight: 0.7 kg (1.54 lb) | Gross weight: 0.9 kg (1.98 lb)
  • Operating temperature: -20°C to 60°C (-4°F to 140°F)
  • Storage temperature: -40°C to 85°C (-40°F to 185°F)
  • Operating humidity: 5% to 95% non-condensing
  • Mounting: Desktop or wall-mount (hardware included)


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