SAMA G850 80 Plus Gold Power Supply Review

The SAMA G850 is a fully modular power supply unit designed for PC enthusiasts and gamers building high-performance systems, without breaking the bank. SAMA might be a relatively new name to many of our readers, but we’ve had a bit of experience with them here at eTeknix, and it seems they’re quickly making a name for themselves, with a wide range of cases, coolers, and of course, power supplies. This 850W unit comes with a robust 80 PLUS Gold certification, and thanks to ATX 3.1 compatibility and it being PCIe 5.1 ready, it ticks all the right boxes for modern gaming PC builds, and the latest and greatest processors.
Key Features
The SAMA G850 has plenty to offer, with a combination of good efficiency, robust modern standards compliance, and the promise of powerful output and silent operation. SAMA has also ensured long-term quality by fitting a high-quality main Japanese capacitor, known for their longevity and stable performance. Albeit it does imply that the other capacitors aren’t Japanese, but we’ll get into that later when we open it up. Furthermore, the unit features an ECO fan mode that allows for fanless operation under low load or internal temperature (below 55°C or 40% load), ensuring near-silent computing when running less intensive tasks like doom scrolling reddit or playing less demanding games.

Key Features Summary
- 80 PLUS Gold Certification: Up to 91.15% efficiency at 50% load.
- ATX 3.1 Compliance: Designed for enhanced stability and resistance to power spikes in high-performance systems.
- Native PCIe 5.1 Connector (12V-2×6): Ensures full compatibility with the latest generation of powerful graphics cards.
- Fully Modular Design: Allows users to only connect necessary cables, promoting a cleaner, more organised build and improved airflow.
- Premium Capacitors: Features a high-quality main Japanese capacitor for stable power delivery and improved durability.
- 140mm ECO FDB Fan: Equipped with Fluid Dynamic Bearings for quiet operation and increased lifespan, supporting a fanless mode at low load.
- Compact Form Factor: Delivers high power and reliable efficiency in a compact size (150 x 150 x 86mm).
- Comprehensive Protection Suite: Includes OTP, OCP, OPP, SCP, OVP, UVP, SIP, and NLO safeguards.
- 5-Year Limited Warranty: Demonstrates SAMA’s confidence in the unit’s quality and reliability.
Technical Specifications
As an 850W unit, it provides ample power headroom for high-end systems, all within the standard ATX form factor but with a slightly reduced depth of 150mm. It including a FDB fan and Japanese main capacitor, all designed to achieve a significant Mean Time Between Failures (MTBF) of 100,000 hours. There’s a native 12V-2×6 connector, providing the flexibility and connectivity required to power modern components without relying on adapters.
Specifications Summary (G850)
- Model Number: HAT-850yzB1G
- Output Power: 850W
- Form Factor: ATX 3.1
- Modularity: Fully Modular
- Dimensions (L×W×H): 150 x 150 x 86mm
- 80PLUS Certification: Gold (Efficiency >90% @ Typical Load)
- AC Input: 100-240Vac
- Fan Size: 140mm
- Fan Bearing: Fluid Dynamic Bearing (FDB)
- Capacitors: Main Japanese Capacitor
- MTBF: 100,000 Hours
- Protections: OTP, OCP, OPP, SCP, OVP, UVP, SIP, NLO
Connectors
- MB ATX 24 Pin: x 1
- CPU (4+4) Pin: x 2
- PCI-E (6+2) Pin: x 3
- 12V-2×6 (12+4) Pin: x 1
- SATA: x 6
- Molex 4 Pin: x 2
For more information you can check out the official product page here.















