Gigabyte PoweRock 400W Power Supply Review

Actual Specifications and Conclusions

Real Wattage 500W
OEM Channel Well (CWT)
PFC Active
Price Not available in Australia. Possibly $40 elsewhere
ATX Connector type 20+4 pin
CPU Connector 1x ATX/EPS12V (4+4Pin),
PCI-E Connectors 1x 6+2 pin
Molex (Peripheral) Connectors 4
FDD Power connectors 1
SATA Power connectors 4



  • Excellent ripple suppression
  • Efficient
  • Can handle more than 400W
  • Quiet below 250W Load


  • Low quality capacitors (-2)
  • 12V voltage regulation has room for improvement (-0.5)

Final comments: The PoweRock 400W offers a lot for a unit around the $40 mark. It’s quiet, looks good, has enough cables, and is more than capable of delivering its rating in spec. We consider it to be fair competition to the Corsair VS450 and In Win IP-S400EQ3-2.

Score: 7.5/10

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