UCTRONICS IEEE 802.3af Micro USB Active PoE Splitter Power Over Ethernet 48V to 5V 2.4A for Tablets, Dropcam or Raspberry Pi 2/3B+ (48V to 5V 2.4A);

Supply power (and transfer data) to your Micro USB devices via a single Ethernet cable by splitting the PoE (Power over Ethernet). Plug-and-play. Easy to install, operate and maintain.

UCTRONICS U5159
Features:
Compliant with IEEE 802.3af
Isolation: 2.5kV
Power Input: DC48V
Power Output: DC5V 2.4A
Data Output Port: RJ45 Male
Power Output Port: Micro USB Power Plug
Data Transfer Rate: 10/100Mbps
Devices will be detected before poe input
Power Pin: support both 1/2(+/-),3/6(-/+) or 4/5(+),7/8(-)

Package including:
1pcs 48V to 5V Active PoE Splitters Micro USB Power Plug

Other Options:
For gigabit rates on RPi 3b+, check U515902, ASIN: B07CNKX14C.
For 12V DC 2.1mm Barrel Jack, check ASIN: B01MPWW2UV.