Yes. It has 4 x 6+2. Here is the full spec page directly from Rosewill.
Rosewill CAPSTONE Series CAPSTONE-750 750W 80 PLUS GOLD Certified,Single +12V Rail,ATX12V v2.31/EPS12V v2.92,SLI Ready CrossFire Ready Active- PFC Power Supply
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Features
80 PLUS GOLD Certified
Continuous 750W@50°C
Supports Intel Haswell CPU C6/C7 Low Power State
Single strong 12V rail – idea for Gaming system
SLI & CrossFire Ready – 4 x 6+2pin Connector
1x Silent 140mm Fan with Auto Fan Speed Control for better silence
Active-PFC with auto AC-input voltage adjustment(100-240V)
Black Coating Housing
Mesh sleeving on all cables for easier cable routing and better ventilation
Over Current/Voltage/Power Protection,
Under Voltage Protection...