- Posts: 2
- Joined: Fri May 17, 2019 6:41 am
- Real Name: Devon Scott
It's a little unclear why the 6-pin auxiliary power connector is needed if the DeckLink 8K Pro card draws less than 25W, but I think you can probably get by without it.
I have used the DeckLink 4K Extreme 12G card without the 6-pin aux power connector without any problems in both regular motherboards and PCIe expansion enclosures (that card draws up to 30W, so the secondary power connector makes some sense there).
Keep in mind that the DeckLink 8K Pro requires a PCIe 3.0 slot though, so I'm not sure it will work with the Sonnet Echo Express SE-I (which only has a PCIe 2.0 slot). I think it should work with the Echo Express SE-III though. That enclosure has a 120W power supply, so it should be enough for the 8K Pro card, provided that you don't have a bunch of other power hungry cards installed in the same enclosure.