For UBNT AP. Gigabit 48V 30watt Passive PoE Injector. Raspberry Pi 3B+ can work with this poe injector after installed this PoE hat or micro USB PoE Splitter. Gigabit 48V PoE Injector Adapter (EU Type) x1(Raspberry Pi，PoE Splitter and PoE HAT not included).
eBay
Microsemi PD-3501G/AC 802.3af - Gigabyte Port Power Over Ethernet (POE) Injector.
eBay
For UBNT AP. Gigabit 48V 30watt Passive PoE Injector. Raspberry Pi 3B+ can work with this poe injector after installed this PoE hat or micro USB PoE Splitter. Gigabit 48V PoE Injector Adapter x1(Raspberry Pi，PoE Splitter and PoE HAT not included).
eBay
POE power：90W(max). Fixed port：1 Gigabit POE port/1 Gigabit RJ45 network port/1 AC power interface. POE protocol：EEE802 3af/at/bt.
eBay
Introducing the Planet PoE-151 IEEE 802.3af Power over Ethernet Injector, a versatile and reliable PoE injector suitable for various applications. With its compact design and easy-to-use interface, this injector is ideal for enterprises looking to upgrade their networking infrastructure. This injector is designed to work with Ethernet cables and provides a seamless power supply to your devices. It is manufactured by Planet, a trusted brand in the industry, and comes with a range of features such as PoE power injection, making it an excellent choice for businesses that require a high-quality networking solution.
eBay
802.3at / af.
eBay
POE power：90W(max). Fixed port：1 Gigabit POE port/1 Gigabit RJ45 network port/1 AC power interface. POE protocol：EEE802 3af/at/bt. Appearance size：187 92 42mm.
eBay
eBay