PoE vs. PoE+ vs. PoE++ Switch: How to Choose?

Power over Ethernet is changing how people connect devices with fewer wires and more flexibility. But with so many switch types, PoE, PoE+, and PoE++, it’s easy to get stuck. Picking the wrong one can leave you short on power or way over budget. That’s why understanding each type matters.

You don’t need to be an engineer. Just know what each switch delivers, how it handles your devices, and where it fits best. From security cameras to phones and even smart screens, these switches feed both data and power through the same line. Let’s cut through the noise and get to what works.

What Is a PoE Switch?

A PoE switch pushes power and data across the same Ethernet cable. No extra power cords. One wire does it all. This tech suits things like VoIP phones and simple cameras. The power of Ethernet is clear: less clutter and quicker setups. You won’t need to drag in an electrician just to fire up a camera.

Standard PoE gives around 15.4 watts per port. It uses two pairs of wires in the cable. That’s enough for smaller, less hungry gadgets. But not all devices stop there, which is where the next level comes in.

What Is a PoE+ Switch?

A PoE+ switch offers more than the standard version. These switches can deliver up to 30 watts per port. That extra power covers more demanding devices, such as HD cameras, wireless access points, or display panels. The PoE+ standard (IEEE 802.3at) works with both old and new devices, so no one’s left behind.

The switch sends power over all four pairs of the Ethernet cable, making delivery smoother. If you're wondering about the difference between PoE and PoE+, that extra wattage and the number of wire pairs are key.

What Is a PoE++ Switch?

What is PoE++, you may ask? It's the heavyweight. Also known as IEEE 802.3bt, this switch powers larger devices that need serious current.

With up to 60 or even 100 watts on certain ports, it can run digital signage, smart lighting, PTZ cameras, and more. That’s double or triple what basic PoE offers.

It works across all four wire pairs, just like PoE, but with more muscle. It fits best where power-hungry setups live, such as big displays, smart conference gear, or clusters of access points. If you're running a network that includes high-performance tools, PoE++ keeps everything humming without plug chaos.

Key Differences of PoE vs. PoE+ vs. PoE++ Switch

Before diving into the technical specifications, it's helpful to understand that Power over Ethernet (PoE) technology is a clever way to deliver both electrical power and data over a single standard Ethernet cable. This table provides you with a better idea of it.

PoE vs. PoE+ vs. PoE++ Switch: Which to Choose?

It’s not about better or worse, it’s about what works for your setup. Choosing the right switch depends on your gear, space, and budget. You don’t want to overpay for power you’ll never use, or underdeliver when your equipment needs more. Here’s where the differences actually matter, broken down into bite-sized choices:

1. Power Needs and Device Type

Start with what you’re powering. Phones, sensors, and basic cameras work fine with PoE. Step up to PoE+ for access points, video gear, or door systems. If your devices look like mini-computers or smart signage, PoE++ may be your ticket.

Each device falls into a PoE power class, from Class 0 to Class 8. Make sure your switch meets the class level of your highest-demand devices.

And don’t forget that some switches mix ports. A Trendnet switch might offer both PoE+ and PoE++ ports in one box.

2. Budget and Energy Waste

Extra power costs more. PoE++ switches usually top the price chart. But if you’re only powering a few light-use devices, that cost might be wasted.

Check how many watts your whole setup needs. Then add a little headroom. Going for Poe+ switch might save you money and still give you future room to grow. Watch your power budget, as most switches limit the total watts across all ports. So, don’t overload it.

3. Cable Type and Distance

Your Ethernet cable matters. Older Cat5 might not handle PoE++ well. Cat6 or Cat6a is safer for big watt loads. Also, know the max distance for PoE, which is typically 100 meters (328 feet). After that, the voltage drops.

If you’re stretching the cable to the limit, your devices might act weird or shut off. Understanding the Poe voltage range, which is usually 44 to 57 volts, helps troubleshoot issues fast.

4. Future-Proofing the Network

If your setup will grow, don’t get boxed in. A few cameras today could turn into a full access system later. Choosing a mixed-power switch keeps you from having to swap gears later.

Also, consider PoE to PoE switch connections. Some networks use one PoE switch to power another. You’ll need to check if your gear supports passthrough.

5. Standards and Safety

Look for switches that meet real power over Ethernet specification standards: IEEE 802.3af (PoE), 802.3at (PoE+), or 802.3bt (PoE++).

Don’t trust off-brand switches that skip standards, as they can burn out gear or cause signal dropouts. True PoE switches manage power safely. They check devices before sending voltage. That keeps things smooth and safe.

Final Thoughts

Choosing between PoE, PoE+, and PoE++ shouldn’t feel like rocket science. Check your device needs, count your watts, pick your cable, and get the right match. Don’t overbuy or don’t underbuy.

For tested and reliable switches, explore the PoE solutions at TS Cables that are built to keep networks clean, powered, and growing without the mess.

FAQs

What does PoE mean in networking?

PoE means delivering power and data through the same Ethernet cable for devices like cameras or phones.

What is the difference between PoE and LAN?

PoE adds power to the Ethernet line. LAN just sends data without any electricity.

Can you run PoE over old cables?

PoE works with Cat5, but higher power (PoE++) might need better cables like Cat6a for safety.

What’s the typical PoE watt output per port?

PoE gives 15.4W, PoE+ gives 30W, and PoE++ can offer up to 60–100W, depending on the version.

Can PoE switches power non-PoE devices?

Yes, but only if the switch detects they’re safe. Otherwise, it won’t send power.