Note: 60ft+ fiber HDMI cables don't support ARC/eARC due to length limits


Troubleshooting Steps:
1. Check for Reverse Polarity: Fiber cables are directional. Reseat the connections, making sure the Tx and Rx ends are not reversed
2. Isolate the Cable: Test the suspect cable on a different, working link to see if the issue follows the cable
3. Rule Out Incompatibility
Cable from FIBBR

Note: 60ft+ fiber HDMI cables don't support ARC/eARC due to length limits


Troubleshooting Steps:
1. Check for Reverse Polarity: Fiber cables are directional. Reseat the connections, making sure the Tx and Rx ends are not reversed
2. Isolate the Cable: Test the suspect cable on a different, working link to see if the issue follows the cable
3. Rule Out Incompatibility
Cable from FIBBR
![]() 8K Fiber Optic HDMI Cable | ![]() Fiber Optic Link Cable | ![]() XLR Cable | ![]() Certified USB C Cable |
|---|---|---|---|
| Bandwidth | |||
| 48Gbps | 5Gbps | XLR Cable | USB C Cable VR Link Cable |
| Resolution | |||
| 8k@60Hz 4k@120Hz | USB3.1 | XLR Cable | Thunderbolt 4 USB C Link Cable |
| Material | |||
| Fiber Core | Fiber Core | XLR Cable | Thunderbolt 4 USB C Link Cable |
| VRR QMS QFT ALLM | |||
| ? | ? | ? | ? |
| DSC HDCP 3D HDR | |||
| ? | ? | ? | ? |
| DTS:X/ Dolby Audio | |||
| ? | ? | ? | ? |
| eARC | |||
| ? | ? | ? | ? |


















































