@FATMEAT is fairly rare for a linkbox to fail, let alone 3 in a row on the same kit.
When you changed out the linkbox - did you also change out the power supply?
Based off the info you provided - it seems like a possibility that you have something in your environment which may be contributing to the failure. My immediate list of things that could be prolematic are:
The AC/DC power supply could be faulty (especially if you're just changing the failed linkbox without trying a different adapter).
The power that's being supplied to the power supply. Perhaps you're getting voltage spikes or a dirty AC supply (e.g. on the same circuit as a high draw device like an AC or Fridge).
Plugging VR/PC gear into a high quality surge protector is always a good investment.
Static electricity - especially if you have carpet or other static issues in that room.
Your PC/GPU could be shorting the device over the USB/HDMI.
I've never had a linkbox fail on me and have used dozens of them spread out over my personal setup and our our in-office units, developer kits, and event kits. Them failing isn't unheard of but sequential failures like this are extremely unlikely without some external force driving the failure state.
If you have carpet - I'd give the static shock theory extra consideration. I've lost some expensive devices due to static shock and in one house I lived in, had to put down some puzzle foam mats because I was shocking my VR gear to death.
This actually happened to me twice within the span of 2 weeks. I have already returned the first one and I am thinking about returning the second one. The power supply is on its own circuit and its hard to believe I got sent 2 faulty power supply cords. The only other thing I can think of is the static as my room has carpet. But will that short it and will it be dead forever or are there ways to restore its power?
Vive Pro Link Box Light Will No Longer Turn On
in VIVE & VIVE Pro
Posted
This actually happened to me twice within the span of 2 weeks. I have already returned the first one and I am thinking about returning the second one. The power supply is on its own circuit and its hard to believe I got sent 2 faulty power supply cords. The only other thing I can think of is the static as my room has carpet. But will that short it and will it be dead forever or are there ways to restore its power?