150W GigE Passive PoE Injector with Surge Protection, Developed for Starlink pinout.

Follow up... I changed from one star to 5 stars. Within a week the seller contacted me and suggested I open the power injector and replace the 4 amp fast blow fuse. I finally found one and replaced it. Our Starlink internet has been working from our 24 volt battery bank since yesterday morning. Now I wont have to leave our inverter running when away for long periods of time.It's my fault I didn't figure a way to test the YAOSHENG 150W GigE Passive PoE Injector when it arrived with the the other components in the photo. At $81, with a 4.5 star rating I assumed it would work. Now I'm way past Amazon's 30 day return. But it's DOA and I don't know how to get the seller or manufacturer will replace it under warranty. It was delivered October 9. January 25 I finally had time to install it so I could avoid running the inverter when not there. As you can see in the photo, there is no light indicating it's powered up. In addition there is no power to the POE port on any of the conductors. So if your reading this, a quick test would be just to connect it on a test board like I have pictured and power it up and see if the LED comes on. I spent hours installing it in a workman like manner and ending taking everything back apart.

The YAOSHENG 150W GigE Passive PoE Injector with Surge Protection is a game-changer for Starlink users looking to create a 12V system without the need for wire cutting. This PoE injector is compatible with both round Dishy (V1) and rectangular Dishy (V2/V3), making it versatile for various Starlink setups. The device has 2 standard RJ45 connectors, allowing for easy connection to the Starlink terminal and the LAN side. Users have two options for connection: either cut off the standard Starlink connector and replace it with an RJ45 shielded connector, or use an adapter to switch the interface from the Starlink connector to the RJ45. Customers have reported that the device works well with both round and rectangular Dishy setups. However, there have been a few instances where the device failed after a few months of use, causing the dish to go into a reboot/config loop. It seems that the power output may not be sufficient in these cases. Overall, customers have found this PoE injector to be convenient and effective, simplifying the setup of their Starlink systems. It allows for easy integration with existing routers and systems, providing a reliable power source for the Starlink terminal.

Honestly, this part is REALLY expensive for what it does, however I'll call it a decent value as long as it continues to work. It made my mobile Starlink install much easier. I hacked the rectangular Starlink antenna and mounted it in a flat mount case made by another company. I then cut the starlink cable and added RJ45 connectors to both cut ends and the statlink pigtail. I'm feeding this device with a 12v -> 48v buck converter and as soon as I plugged everything in starlink powered up and connected to the network. I plugged a GL.iNet router into the other port and was online and surfing the web. I was willing to pay more for this unit because it's in an indestructible enclosure, has the ability to be grounded, and saved me having to sort out the correct wiring conversion needed since starlink does not use the same pin layout as ethernet.There have been some reports of this device failing. I won't know about longevity until I've had it awhile but so far it's a win.

used it to covert power feed for starlink from AC to DC. Works great.

Hooked it all up very carefully. When testing time arrived, the WAN port on the WiFi router said No Connection. The link light on the WAN port of the WiFi router was dark. I tried three different cables, and also ran the cables to my laptop as well. No life from the LAN port on the PoE injector.Just so we're on the same page, I'm an IT consultant with 24 years experience in the IT field. I've plugged in more ethernet cables than I have hairs on my head. I've crimped more custom ethernet cables than there are Starlink satellites in the sky. I am quite sure that the LAN port on the PoE injector is DOA.I've requested an exchange for the same product, but availability is poor so it won't arrive for three weeks. And I am sorely disappointed. When I pay 7x the going rate for a fancy PoE injector that is custom cut and made so I don't have to wire it up myself, I expect the thing to work. Where's the QC?Anyway, I have ordered a cheap plastic PoE injector for 16 bucks and one day shipping, and I'll go ahead and cut open my Starlink ethernet adapter (and order a new one so I have an unmodified one). Which is precisely what I was paying top dollar to avoid doing. But I guess it's plain that I should have a redundant backup of this unit, even if the replacement unit works fine.

Starlink dishy to the YAHOSHENG adapter, the adapter to this passive injector, and then the LAN side of this passive injector to my switch. Works great. I haven't tested the full range of voltages my battery system can run through (48V to 56.8V roughly), but any issues there would be a problem for dishy, not the passive injector.Since this is a passive injector (and even if it weren't), I recommend putting a glass auto-fuse of roughly 3A or 3.15A inline with the DC positive power wire. Remember that auto-blade fuses are only rated to 32V and should not be used in this application.

I bought this along with their cable adapter and it allowed me to set up my Starlink without modification to run off DC power. The two units are solid metal and very compact. I ran them for a few hours and they never got warm. I was able to plug this all in and connect my laptop via ethernet directly to the Starlink. It acquires an IP address and works just like you would expect. The dish functioned as you would expect even downloaded a routine update while I was testing.This combo is the best way to run your Starlink using direct DC power. Excellent for off-grid cabin usages where AC power is too expensive or mobile situations like boats or RVs.