The ASRock Extreme4 comes well equipped, featuring a Digital PWM and 12 Power Phase design. This bodes well for overclocking performance on our i9-9900K. It’ll support multi-GPU configurations, and super fast M.2 storage or Optane for a competitive system build. Those who want even more storage options, you’ll be happy to see 8 SATA3 ports, and plentiful USB Gen 1 and Gen 2 connections.
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