poe injector

Can I use something like this to power a tp-link POE switch ? So I can power 4 ip camera from one wire.

Hey, so I've never tried using a POE injector with VLANs before. Has anyone tried using POE injectors on a network using VLAN encapsulation? And if so, how'd that go? Have a friend with lots of streaming devices, network is starting to have latency issues. I'm pretty sure he'll have to get...

Can I power a Hikvision (DS-2CD2055FWD-I) power input specified as: PoE (802.3af, class 3), 7 W with a Ubiquiti 802.3af (SKU: U-POE-AF) injector? Both standards seem right but want to ensure compatibility as I find the injector price a bit on the cheap side and need to buy several.

Hey guys and girls. As the title says, Is There An App For ChromeBook Available To Use For Any IP Camera? I have a "Reolink PoE IP Camera 5MP Super HD Home Security Camera" I want to use with the CB laptop. Here's an Amazon link to the the product. https://www.amazon.co.uk/gp/product/B07C75C47B/