GIGABYTE has introduced two new power supply units in Japan to address specific build requirements. The P650G PCIE 5.1 and the P550B offer distinct efficiency ratings for different system tiers. These releases expand the company's lineup with cost-focused options for local consumers.
Two new power supply units featuring distinct efficiency ratings and compact dimensions are now available for local consumers.
The P650G PCIE 5.1 (model GP-P650G PG5) delivers 650 watts of power. It carries an 80PLUS GOLD efficiency certification and complies with ATX 3.1 standards. This model also supports the PCI Express 5.1 specification for modern graphics cards.
Spec comparison
| Spec | P650G PCIE 5.1 | P550B |
|---|---|---|
| Wattage | 650W | 550W |
| Efficiency Certification | 80PLUS GOLD | 80PLUS BRONZE |
| Standards Compliance | ATX 3.1 / PCIe 5.1 | Standard ATX |
| Warranty | 5 years | 3 years |
The P550B (model GP-P550B) provides a lower output at 550 watts. It holds an 80PLUS BRONZE efficiency rating rather than the higher gold standard. Both units share identical physical dimensions of 150mm width, 140mm depth, and 86mm height.
Each power supply uses a 120mm silent hydraulic bearing fan for cooling. The manufacturer rates the mean time between failures at over 100,000 hours. Warranty coverage differs between the two models, with five years for the P650G and three years for the P550B.
Pricing in Japan sets the P650G PCIE 5.1 at 10980 JPY (about $68.56). The more affordable P550B is priced at 7580 JPY (about $47.33). Both units began sales on June 19, 2026.
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