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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⚡ Power up your network with speed and safety—no compromises!

PLUG PLAY SIMPLICITY - No complex setup—just connect and power your devices instantly.
SMART POWER MANAGEMENT - Auto-detects and delivers up to 24W, optimizing power for your equipment.
ROBUST MULTI PROTECTION - Built-in isolation, short circuit, and overvoltage safeguards keep your gear safe.
SEAMLESS PO E POWER CONVERSION - Transform 48V PoE into reliable 12V/2A DC output for non-PoE devices effortlessly.
BLAZING GIGABIT NETWORK SPEEDS - Experience ultra-fast data transfer with full 10/100/1000Mbps compatibility.

The Gigabit PoE Splitter PS5712TG converts 48V Power over Ethernet into a stable 12V/2A DC output, supporting up to 24W power delivery. It ensures gigabit network speeds (10/100/1000Mbps) and features plug-and-play ease with advanced multi-layer protection to safeguard connected devices, making it ideal for powering security cameras and CCTV systems without PoE capability.

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Brand	REVOTECH
Series	PS5712TG
Item model number	12V/2A DC 5.5*2.1mm (PS5712TG)
Item Weight	1.76 ounces
Product Dimensions	10.83 x 1.1 x 0.91 inches
Item Dimensions LxWxH	10.83 x 1.1 x 0.91 inches
Color	12V 2A DC Plug PS5712TG
Power Source	Power: Input 48V DC /0.35A, Output 12V/2A
Manufacturer	Revotech
ASIN	B08HS4NT13
Is Discontinued By Manufacturer	No
Date First Available	September 10, 2020

Gigabit PoE Splitter 12V 2A Output with IEEE 802.3af/at Standard Compliant 10,100,1000Mbps Power Over Ethernet Splitter Adapter for Security Camera CCTV Surveillance 5.5x2.1mm DC Plug Cable(PS5712TG)

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