The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →An Ethernet cable can connect devices on your home’s local network—and, with compatible equipment, carry electrical power as well as data. That makes it useful for devices such as a network printer, camera, or Wi-Fi access point. The cable itself does not create internet service, Wi-Fi coverage, or power: what it can do depends on the devices and network equipment at each end.
What an Ethernet cable does on a home network
Ethernet provides a wired connection between a device and a local network. Computers, printers, network storage, phones, cameras, and access points can use that connection. A device on the network may also reach the internet, but only if the network has an upstream internet connection and is configured to provide access. A cable connecting two devices does not, by itself, supply internet service. Eaton’s Ethernet cable overview discusses Ethernet as a network connection.
How Ethernet can carry power as well as data
Power over Ethernet (PoE) sends electrical power and network data over the same Ethernet cable. It can simplify a connection to a compatible endpoint, particularly when that device needs to be placed somewhere without a convenient outlet. The power comes from compatible power-sourcing equipment—typically a PoE switch or injector—not from the cable alone. Both the source and the endpoint must support compatible PoE standards and power requirements. Cisco and the U.S. Department of Energy describe PoE as a standardized way to combine power and data on one cable. Cisco’s PoE overview and the Department of Energy’s PoE overview explain the technology.
Useful PoE examples around the home
Security cameras
A PoE IP camera can be installed where you want to monitor an entry, garage, or other area even if there is no nearby electrical outlet. One run can provide the camera’s network connection and power, provided the camera accepts the PoE standard and power level supplied by the switch or injector. Not every camera with an Ethernet port supports PoE; check its specifications.
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#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
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Wi-Fi access points
A compatible PoE access point can be mounted in a useful location—such as a ceiling or hallway—without needing a separate power cable at that spot. PoE powers the access point, while the access point provides wireless coverage; an Ethernet cable alone does not create Wi-Fi. Its coverage still depends on the access point and the network setup.
IP phones and other devices
IP phones are another established PoE use. Documented applications beyond common home devices include sensors, lighting, access-control and alarm equipment, kiosks, digital signage, professional AV equipment, and some industrial or building-control devices. These examples are equipment designed for PoE; an ordinary device does not become PoE-compatible just because it has an Ethernet jack. See the Ethernet Alliance’s PoE overview and Microchip’s introduction to PoE for additional examples.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
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What to check before choosing PoE equipment or cable
- Confirm the endpoint supports PoE. Check the camera, access point, phone, or other device’s documentation for its supported standard and power requirement. An Ethernet port alone does not establish PoE support.
- Match the power source. Verify that the PoE switch or injector supports a compatible standard and can meet the endpoint’s requirement on the port you plan to use.
- Check the overall power budget. A switch can have a total PoE budget shared across ports, so confirm it can power all planned devices at once as well as meet each device’s per-port needs.
- Choose cable and route for the installation. Match the cable to the devices and run. Category alone does not guarantee a working PoE installation; cable, route, endpoint requirements, and source capacity all matter. Cisco discusses Cat 5 and later PoE standards, and the Ethernet Alliance describes Cat 5e or better in PoE contexts. That does not make a premium cable category necessary for every household.
- Account for run length and conditions. Cisco gives 100 metres as the maximum length in the standards context its overview describes; do not treat that as a universal guarantee for every device or installation. For a permanent, outdoor, or difficult route, check applicable equipment and installation requirements before running cable.
For the standards context in its overview, Cisco also discusses IEEE 802.3bt Type 4 with a 90 W source-side maximum. That figure describes the source side; it does not mean an endpoint necessarily receives 90 W. See Cisco’s explanation of PoE standards and power for that qualification.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When a regular wired connection is enough
If a device only needs a network connection and has its own power supply, Ethernet can still be useful without PoE. A wired connection can link it to local devices and network services; internet access depends on the network’s upstream connection and configuration. Consider PoE specifically when the endpoint supports it and putting power and data on one run solves a placement or cabling problem.
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Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
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- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
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- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
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Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
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