Unfortunately, that PSU has two 6-pin and two 8-pin connectors, which would make Crossfiring 4850s impossible since each requires two 6-pin. An 8-pin does not fit in a 6-pin slot.
This is in the same price range (£2 cheaper) and has two 6-pin connectors, and two 6/8-pin connectors.
NQ-4775-850-FLEX - 850W NorthQ Black Magic Flex Modular Green PSU 80%+ Eff' 135mm Silent Fan Crossfire X/Quad SLi - Scan.co.uk
I also know it to be a good-quality PSU, I used it in a comp I built for a friend.
If you're interested, here's the difference:
An 8-pin connector
A 6/8-pin connector
Images source: All about the various PC power supply cables and connectors
This is in the same price range (£2 cheaper) and has two 6-pin connectors, and two 6/8-pin connectors.
NQ-4775-850-FLEX - 850W NorthQ Black Magic Flex Modular Green PSU 80%+ Eff' 135mm Silent Fan Crossfire X/Quad SLi - Scan.co.uk
I also know it to be a good-quality PSU, I used it in a comp I built for a friend.
If you're interested, here's the difference:
An 8-pin connector
A 6/8-pin connector
Images source: All about the various PC power supply cables and connectors