Power over Ethernet (PoE) sends Ethernet data and electrical power over one twisted-pair Ethernet cable. A PoE switch supplies power; the access point, camera, or phone receives it. To know whether the setup will work, match the device’s PoE standard and power needs to the switch’s per-port capability, total power budget, and cable installation.
What PoE does—and what it does not guarantee
A PoE-capable switch is the power sourcing equipment (PSE); the connected device is the powered device (PD). One cable can carry both network data and power, which can avoid the need for a separate power outlet at each device. It does not mean every Ethernet port supplies power, or that every PoE device receives enough power from every PoE switch. Confirm the specifications for the exact switch port and device model.
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PoE, PoE+, and PoE++ power levels
The familiar labels refer to different IEEE standards and maximum power levels. Cisco’s figures below distinguish maximum output at the switch from maximum power available at the device; the latter is lower because power is lost along the cable.
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| Common label | IEEE standard and type | Maximum source output | Maximum at device | Examples cited by Cisco |
|---|---|---|---|---|
| PoE | 802.3af, Type 1 | 15.4 W | 12.95 W | Wi-Fi access points, thin clients, industrial sensors |
| PoE+ | 802.3at, Type 2 | 30 W | 25.5 W | Video IP phones, surveillance cameras, scanners |
| PoE++ | 802.3bt, Type 3 | 60 W | 51 W | Point-of-sale systems, PTZ cameras, laptops |
| PoE++ or 4PPoE | 802.3bt, Type 4 | 90 W | 71 W | Wi-Fi 6/6E access points, digital signage, desktop computers, displays |
These are maximums reported in Cisco’s Power over Ethernet guide, not a promise that a particular switch provides that output or that a device draws that much. Check the product specifications. The Ethernet Alliance’s 2018 overview uses device-side figures in its account of standards history: 13 W for 802.3af, 25.5 W for 802.3at, and 71.3 W for 802.3bt Type 4. Those historical figures are not source-side ratings and should not be compared as if they were the same measure (Ethernet Alliance overview).
#1 Best Overall
- 𝗙𝘂𝗹𝗹 𝗚𝗶𝗴𝗮𝗯𝗶𝘁 𝟴-𝗣𝗼𝗿𝘁 𝗣𝗼𝗘 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻 - 8 PoEplus (802.3at/af) Gigabit RJ45 providing up to 30W per port and total PoE power budget of 65W. Up to 16 Gbps switching capacity.
- 𝗘𝘅𝘁𝗲𝗻𝗱𝗲𝗱 𝗣𝗼𝗘 𝗧𝗿𝗮𝗻𝘀𝗺𝗶𝘀𝘀𝗶𝗼𝗻 - Up to 820 ft PoE transmission distance with Extend Mode button on, perfect for surveillance camera deployment in large areas.
- 𝗣𝗼𝗘 𝗔𝘂𝘁𝗼 𝗥𝗲𝗰𝗼𝘃𝗲𝗿𝘆 - Automatically reboots your dropped or unresponsive PoE-powered devices with PoE Auto Recovery Mode on.
- 𝗣𝗹𝘂𝗴 𝗮𝗻𝗱 𝗣𝗹𝗮𝘆 - Simply plug and play for instant connectivity with no configuration required.
- 𝗦𝗶𝗹𝗲𝗻𝘁 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 - Fanless design reduces power consumption and ensures silent operation, ideal for noise-sensitive homes or businesses.
Can your switch power an access point, camera, or phone?
It can if the device accepts power from Ethernet and the switch supplies a compatible standard and sufficient power. Device categories alone are not enough to decide: access points, cameras, and phones can have different requirements, even within a product line. Look up the exact model’s accepted IEEE PoE standard and required or maximum power, then verify the capability of the specific switch port.
Standards-based PoE sources and devices are designed to interoperate, but compatibility does not ensure full power in every pairing. A newer, higher-power device may operate with reduced power—or may not meet its requirements—when connected to an older or lower-power source. Some legacy products also have model-specific exceptions. Check both manufacturers’ documentation; Cisco’s PoE guide and the Ethernet Alliance overview explain the standards context.
Rank #2
- [Flexible Full Gigabit 5-Port PoE Configuration] 4x PoE+ (802.3at/af) 10/100/1000 Mbps RJ45 ports providing up to 30W per port and total PoE power budget of 65W, together w/ 1x Gigabit Non-PoE Port for high-speed connections.
- [Plug and Play] Easy setup with no software installation or configuration needed.
- [Advanced Software Features] Prioritize your traffic and guarantee high quality of video or voice data transmission with Port-based 802.1p/DSCP QoS and IGMP Snooping.
- [Sturdy Metal Case] Durable metal casing and desktop/wall-mounting design are well-suited for different environments.
- [Reliable and Quiet] IEEE 802.3X flow control provides reliable data transfer and Fanless design ensures quiet operation.
How much PoE power does the switch need?
Check both the power available on each port and the switch’s total PoE budget. A switch may have a substantial total budget but still lack the required rating on a particular port. Likewise, a port may support the device while the switch’s overall budget is insufficient to power all planned devices at once.
- List the devices. Record the exact model of each access point, camera, phone, or other PD you plan to run.
- Find each device’s requirement. Use its product specification to identify the accepted PoE standard and required or maximum power. Do not estimate from its category.
- Check individual ports. Confirm that each planned port supports the standard and power level its device needs.
- Add simultaneous demand. Sum the requirements for devices expected to run at the same time and compare that total with the switch’s stated PoE availability. Follow the manufacturer’s guidance for startup demand and reserve capacity.
- Account for the cable and installation. Verify cable category and run requirements, and allow for transmission losses that can reduce device-side power.
- Check unusual or older models. Look for compatibility notes, reduced-power behavior, or exceptions in the device and switch documentation.
Ubiquiti warns that device requirements exceeding a switch’s available PoE power can cause instability or failure. Compare switches by supported IEEE standard and per-port output, total PoE budget, port count, and the needs of the exact devices—not by one advertised wattage alone (Ubiquiti’s PoE availability guidance).
Rank #3
- GIGABIT ETHERNET PORTS: Features 8 x 1.0Gbps Ethernet ports for high-speed connectivity. Auto-negotiating ports detect the optimal speed for connected devices and work with existing Cat5e or Cat6 Ethernet cables.
- POWER-OVER-ETHERNET (PoE): Includes 8 PoE+ ports with 62W total power budget, plus uninterrupted PoE and per-port PoE controls for managed power delivery.
- EASY SMART MANAGED NETWORK SWITCH: Intuitive software interface offers Easy Smart Managed Essentials capabilities to configure VLANs, prioritize traffic with QoS, monitor ports, and manage network security for small businesses.
- FLEXIBLE MOUNTING OPTIONS: Compact metal design supports desktop or wall-mount placement for versatile installation.
- SILENT & ENERGY-EFFICIENT OPERATION: Fanless design ensures silent performance, while IEEE 802.3az Energy Efficient Ethernet reduces power consumption without compromising high-speed network performance.
Why cable losses matter
The power at the device is less than the source output. Cisco’s 2025 brief says transmission losses in enterprise environments are typically 10% to 15%, and gives an example in which a 60 W source leaves 51 W at the device. That example illustrates the difference between source-side and device-side power; it is not a guaranteed result for every cable run or installation. Cable type, run, and installation conditions matter. See Cisco’s PoE brief for its figures.
What Ethernet cable do you need for PoE?
Ubiquiti’s standards table lists Cat3 or better for 802.3af, and Cat5 or better for 802.3at and 802.3bt. Treat those as baseline references, not a substitute for checking the requirements of your devices and installation. Confirm the cable category and run suitability for the actual PoE standard, expected power, and deployment (Ubiquiti’s PoE guidance).
Rank #4
- More Ports, PoE Ready: UGREEN ethernet switch offers 8 PoE+ (802.3at/af) Gigabit ports (up to 30W each) and 2 Gigabit uplink ports, with a total power budget of 60W. Ideal for efficient power delivery and seamless network connectivity
- Intelligent Power Management: If power exceeds 60W, it cuts ports in priority order (8–1) to prevent overload. It auto-detects PoE devices, supplies power to them, and transmits data only to non-PoE devices. Short-circuited ports shut off independently
- PoE Auto Recovery: In Extend Mode, ports 1–6 automatically detect and restart powered devices (such as cameras or access points) when they go offline or freeze, ensuring stable PoE operation without manual monitoring or restart
- One Touch, Three Modes: The unmanaged ethernet switch can easily switch between Standard, Port Isolation (VLAN), and Extend with one button. Port Isolation separates ports 1–8 to prevent network storms. Extend mode supports PoE up to 820 ft, ideal for security systems and long-distance deployment
- High-Speed, Low Latency: The ethernet splitter offers 1000Mbps connectivity for real-time, lag-free monitoring with security cameras, efficient IP phone connections for work, and enhanced performance for wireless access points across your network
Choosing between a PoE+ and PoE++ switch
A PoE+ switch is appropriate when compatible devices require 802.3at power; a PoE++ switch is a higher-power option for devices that require 802.3bt. Neither label alone settles whether a switch will work for a particular setup. Check the standard and output supported by each relevant port, the switch’s total budget, and each device’s exact requirement. Also account for cable losses when the device needs power close to the port’s maximum output.
Vendor labels can vary, so use IEEE standards and product specifications rather than relying only on terms such as “PoE++.” Cisco’s PoE guide and Ubiquiti’s availability guidance provide standard and budget context; the specifications for your exact models determine the match.
Quick Recap
Best Value
- GIGABIT ETHERNET PORTS: Features 5 x 1.0Gbps Ethernet ports for high-speed connectivity. Auto-negotiating ports detect the optimal speed for connected devices and work with existing Cat5e or Cat6 Ethernet cables.
- POWER-OVER-ETHERNET (PoE): Includes 4 PoE+ ports with a 63W total power budget, plus dynamic PoE allocation that redistributes unused power to support more connected devices.
- PLUG-AND-PLAY UNMANAGED NETWORK SWITCH: Simple plug-and-play setup with no software to install or configuration required.
- FLEXIBLE MOUNTING OPTIONS: Compact metal design supports desktop or wall-mount placement for versatile installation.
- SILENT & ENERGY-EFFICIENT OPERATION: Fanless design ensures silent performance, while IEEE 802.3az Energy Efficient Ethernet reduces power consumption without compromising high-speed network performance.
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