What Is Power over Ethernet (PoE)? - Cisco
![What Is Power over Ethernet (PoE)? - Cisco](https://www.cisco.com/c/en/us/solutions/enterprise-networks/what-is-power-over-ethernet/jcr:content/Grid/category_atl/layout-category-atl/blade/bladeContents/spotlight_520850944.img.png/1590762336387.png)
Power over Ethernet (PoE) is a technology for delivering DC power to devices over copper Ethernet cabling, without separate power supplies or outlets.
![](https://www.exertis.ie/images/products/40265/130610/600x600/C9136I-E.webp)
Cisco Cisco C9136I White Power over Ethernet (PoE)
![](https://www.cisco.com/c/dam/en/us/support/docs/smb/switches/cisco-small-business-500-series-stackable-managed-switches/images/2886-1.png)
Power over Ethernet (PoE) Properties on Sx500 Series Stackable Switches - Cisco
![](https://eadn-wc03-106342.nxedge.io/cdn/media/catalog/product/cache/e29326b11951fdb824643b873aab0c02/2/2/22769868_8439656470.jpg)
Cisco SB-PWR-INJ2-EU PoE adapter Gigabit Ethernet 55 V Small Business High Power Gigabit Power over Ethernet Injector
![](https://www.broadbandbuyer.com/images/products/cisco%20systems/sb-pwr-inj2-uk.png?width=200)
15W - 50W injector, Cisco Small Business PoE Injectors (Power over Ethernet)
![](https://meraki.cisco.com/wp-content/uploads/2023/09/802.3at-poe-injector-smart-cameras-product-tile.png)
802.3at PoE Injector Meraki Power and Connectivity
![](https://infrackonet.b-cdn.net/wp-content/uploads/2022/03/92475643_8197935240.jpg)
CBS350-8MP-2X-EU Cisco CBS350 Managed L3 2.5G Ethernet (100/1000/2500) Power over Ethernet (PoE) 1U Black, Grey - Infracko
![](https://i.ebayimg.com/images/g/lYIAAOSwEMlkEH4G/s-l1200.webp)
Cisco PWR-POE-4450 Single Power Over Ethernet Module for Cisco ISR4450
![](https://www.lasystems.be/media/catalog/product/cache/1/image/393x393/9df78eab33525d08d6e5fb8d27136e95/6/1/61384_101262018_7031350973.jpg)
Cisco C9200CX-12P-2X2G-E network switch Managed Gigabit Ethernet (10/100/1000) Power over Ethernet (PoE)
![](https://m.media-amazon.com/images/I/616ty5m2NLL._AC_UF894,1000_QL80_.jpg)
Plusource Networks Universal 48v Wall Plug POE Injector for Most Cisco / Polycom / Aastra Phones : Electronics
![](https://product-images.eetgroup.com/images/700px_jpg/Img_29318087.jpg)
C1000-24FP-4G-L, Cisco Catalyst C1000-24FP-4G-L network switch Managed L2 Gigabit Ethernet (10/100/1000) Power over Ethernet (PoE) Grey
![](https://lzd-img-global.slatic.net/g/p/dfb796e089e94b11decf8beea271fb19.jpg_720x720q80.jpg)
SF220-48P-K9-CN Cisco Network Switch, Managed L2 Fast Ethernet (10/100) Power over Ethernet (PoE) Black Small Business 220, Smart Plus, 48x PoE ports, 2x Gigabit Ethernet (RJ-45/SFP) , PoE, CN
![](https://cdn.networkacademy.io/sites/default/files/2020-08/Power%20over%20Ethernet%20Cabling.png)
Power over Ethernet (PoE, PoE+, UPOE, UPOE+)
Cisco Catalyst WS-C2960X-48FPS-L network switch Managed L2/L3 Gigabit Ethernet (10/100/1000) Power over Ethernet (PoE) Black - Switches & accessories - Network & accessories - IT equipment - MT Shop
![](https://www.cisco.com/c/dam/en/us/support/docs/smb/routers/cisco-rv-series-small-business-routers/images/ab-configure-20poe-20setting-20on-20the-20rv345p-20router-01032017-step-208b.png)
Configure Power over Ethernet (PoE) Settings on the RV345P Router - Cisco