Will a linxdot helium miner work with this? in theory the linxdot needs 12V and 2.5Amps

2.0A is not enough for your miner. There is another model of this that I ended up getting for my Sensecap M1 which requires 3A. As long as the voltage is correct, the amp rating can be higher than what you need. The miner is only going to pull the amps it needs.

Will the 5v 2.4a micro usb (gigabit ) work with an amazon fire tv and give me 1000mbps speeds via the microusb? other's are cap at 100mbps via micro

Even modern Samsung TVs have only 100mbps wired Ethernet. TVs and streaming devices do not need more bandwidth even for 4K streaming.

is this all you need for Bobcat Miner? Or do i need something else. Pleas help

This product takes POE, and converts it to a 12VDC output. You lose the POE power in the process. So it can power a a 12 volt device and supply a network connection.

Will this supply 12v dc through the barrel plug and poe power through the rj-45 at the same time?

Since a POE splitter "splits" the power and data, no- it would only have power on the power plug.

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Description

⚡ Power your network like a pro—fast, safe, and effortlessly smart!

PLUG PLAY SIMPLICITY - No complex setup—just connect and power your devices instantly, saving you time and hassle in professional installations.
BLAZING FAST GIGABIT ETHERNET - Experience ultra-reliable 10/100/1000Mbps data transmission, ensuring your security cameras and IoT devices never miss a beat.
SEAMLESS PO E POWER CONVERSION - Effortlessly convert 48V PoE to 12V/2A DC output for non-PoE devices, unlocking flexible deployment without extra power lines.
ROBUST MULTI PROTECTION DESIGN - Built-in isolation, short circuit, and overvoltage safeguards protect your critical equipment from electrical faults.
COMPACT LIGHTWEIGHT POWERHOUSE - Slim 27.5cm form factor and featherlight 50g weight make it perfect for discreet, space-conscious network setups.

The Revotech PS5712TG Gigabit PoE Splitter converts 48V Power over Ethernet into a stable 12V/2A DC output, supporting up to 24W power delivery. Compliant with IEEE 802.3af/at standards, it enables non-PoE devices like security cameras to leverage PoE convenience. With gigabit speeds up to 1000Mbps, plug-and-play ease, and comprehensive electrical protections, this compact splitter is engineered for seamless, reliable network power solutions in professional surveillance and IoT environments.

Specifications

Brand	Revotech
Manufacturer	Revotech
Model	12V/2A DC 5.5*2.1mm (PS5712TG)
Model Name	PS5712TG
Product Dimensions	27.5 x 2.8 x 2.3 cm; 50 g
Item model number	12V/2A DC 5.5*2.1mm (PS5712TG)
Hardware Interface	Ethernet
Compatible Devices	Internet Protocol Camera
Special Features	Overcurrent Protection, Overheating Protection, Overvoltage Protection, Short circuit Protection
Mounting Hardware	1 x POE Splitter (PS5712TG)
Number of items	1
Wattage	30 Watts
Power Source	Power: Input 48V DC /0.35A, Output 12V/2A
Batteries Included	No
Batteries Required	No
Data Transfer Rate	1000 Megabytes Per Second
Type of cable or wire	ethernet
Data Link Protocol	Gigabit Ethernet, IEEE 802.3
Connector Type	Ethernet
Includes Rechargeable Battery	No
Manufacturer	Revotech
Item Weight	50 g

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