Mark: Everything you want to know about the HDfury power connector is available in the HDfury FAQ
Cut & paste:The specs say that the HDfury draws it's power directly from the DVI/HDMI line but that an optional +5VDC input is provided for HDMI cables that are over 5 meters (16 feet). What sort of power supply do I need for this? When do I need to use an external power supply?
The DC jack on the side of the HDfury must follow all these requirements:
- Provide REGULATED (+/- 5%) 5VDC power with 0.5A max DC current
- Deliver the power through a small 0.65mm diameter center pin / 2.6mm outer diameter DC plug (like the one often used in cellular phone AC adaptor)
- Provide the correct polarity with 'plus' on the OUTER part of the plug and 'minus' (ground) on the small center pin of the DC jack.
Trying to use an AC/DC adaptor that doesn't follow all these three requirements may destroy the HDFury. This external HDFury powering option is only needed in one or both the following situations:
- The DVI or HDMI cable is using thin gauge copper wires and its length exceeds 5 meters (16 feet).
- The DVI or HDMI source is unable to deliver the 0.5A maximum current over its HDMI or DVI pin #14. This situation often occurs when HDFury is used with cheap DVD/HD players at 1080p60 mode.