SAMA PC Power Supplies: 2 Picks Ranked by Specs
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This guide ranks the best SAMA PC power supplies based on published specifications. We compared 2 models to help you find the right unit for your build. SAMA offers fully modular ATX units in various sizes, including compact 5.9-inch widths and lengths up to 5.9 inches. These units come in black or white finishes to match your case aesthetics. The top pick is the SAMA GT750 750W Gold ATX 3.1. It leads because its 12V-2x6 connector delivers stable power for modern GPUs while supporting clean cable management in white builds.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | SAMA GT750 750W Gold ATX 3.1 Best overall | modern GPUs and clean white builds | Check price of SAMA GT750 750W Gold ATX 3.1 on Amazon |
| 2 | SAMA G650 ATX 3.1 650W Gold PSU Also great | mid-range gaming PCs with modern GPUs | Check price of SAMA G650 ATX 3.1 650W Gold PSU on Amazon |
Our 2 picks
SAMA GT750 750W Gold ATX 3.1
Best for: modern GPUs and clean white builds
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold, Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
View on Amazon: SAMA GT750 750W Gold ATX 3.1 Affiliate link
The SAMA GT750 is a 750W fully modular power supply built for modern gaming rigs. It features ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector for recent GPUs. Japanese capacitors and LLC topology ensure stable performance. The 120mm FDB fan supports ECO mode for quiet operation at low loads. This white unit suits builders needing reliable, efficient power delivery.
Pros
- 750W Gold efficiency rating for stable power delivery
- ATX 3.1 and PCIe 5.1 ready with 12V-2x6 connector
- Fully modular design with embossed cables for clean builds
- Japanese capacitors and LLC topology for long-term reliability
Cons
- 120mm fan size is smaller than typical 135mm or 140mm units
- White color may not match black component builds
- Heavier at 3.53 pounds compared to lighter alternatives
Good fit if
- You need native 12V-2x6 support for modern graphics cards
- You want fully modular cables for easier installation
- You prefer a white power supply for aesthetic builds
Skip if
- You require a 135mm or larger fan for quieter operation
- You are building a black-themed PC and want matching components
- You need more than 750W of total power output
Verdict: SAMA GT750 750W Gold ATX 3.1 delivers stable power for modern GPUs via its 12V-2x6 connector. It fits builders prioritizing efficiency and clean cable management in white builds.
SAMA G650 ATX 3.1 650W Gold PSU
Best for: mid-range gaming PCs with modern GPUs
- Wattage
- 650W
- Efficiency Rating
- Gold, Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 140mm
View on Amazon: SAMA G650 ATX 3.1 650W Gold PSU Affiliate link
The SAMA G650 is a 650W fully modular power supply built for gaming systems. It meets ATX 3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector for modern GPUs. Japanese capacitors ensure stable voltage output, while a 140mm FDB fan supports quiet ECO mode operation. This unit is designed for users who need reliable power delivery with clean cable management for their builds.
Pros
- 650W output with Gold efficiency rating
- ATX 3.1 and PCIe 5.1 compatibility
- Native 12V-2x6 connector for new GPUs
- 140mm FDB fan for quiet operation
- Fully modular design for easy cable management
Cons
- Lower wattage than the 750W GT750 option
- No mention of remote or app control
- Standard ATX form factor limits fitment in small cases
Good fit if
- You are building a mid-range gaming PC
- You need native support for PCIe 5.1 GPUs
- You prefer fully modular cables for clean builds
Skip if
- You require more than 650W of power
- You are using a mini-ITX case with strict size limits
- You want remote monitoring or software control
Verdict: SAMA G650 650W Gold ATX 3.1 suits gamers who need reliable power for modern graphics cards without the bulk of higher-wattage units. It is a solid choice for standard ATX cases where cable management and quiet operation matter.
Specifications side by side
| Spec | SAMA GT750 750W Gold ATX 3.1 | SAMA G650 ATX 3.1 650W Gold PSU |
|---|---|---|
| Wattage | 750W | 650W |
| Efficiency Rating | 80 PLUS Gold, Cybenetics Gold | Gold, Cybenetics Gold |
| Modularity | Fully Modular | Fully Modular |
| ATX Version | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | 12V-2x6 | 12V-2x6 |
| Fan Size | 120mm | 140mm |
| Form Factor | ATX | ATX |
| PCIe Version | PCIe 5.1 | not stated |
| Recommended Use | Gaming | Gaming |
| Connector | 12V-2x6 Connector | not stated |
| Dimensions | 5.5 × 5.9 × 3.3 inches | 5.9 × 5.9 × 3.3 inches |
| Weight | 3.53 pounds | 3.53 pounds |
| Size | Gold GT750 White | Gold G650 Black |
| Color | White | Black |
| Model | HAT-750yzB1 | HAT-650yzB1G |
SAMA PSU Picks Ranked by Specs
SAMA offers two distinct ATX 3.1 options for your build. The GT750 stands out with its white finish and 12V-2x6 connector support. This unit suits builders who prioritize clean aesthetics and high efficiency for modern graphics cards. Its fully modular design helps you manage cables neatly in white-themed cases.
The G650 provides a black alternative for gamers. It delivers reliable power without the bulk of higher-wattage units. This model fits standard ATX cases where quiet operation matters. Both units feature fully modular cabling and support PCIe 5.1 standards. You can choose based on your color preference and wattage needs.
Who SAMA Power Supplies Suit
SAMA’s current lineup covers the mid-range segment with two fully modular ATX 3.1 units. You have a 650W black option and a 750W white option, both sharing a 5.9-inch width. These models suit gamers and builders who need modern PCIe 5.1 support and clean cable management. Neither unit exceeds 750W, so high-end enthusiast builds requiring 850W or more are not covered here. There are no SFX or SFX-L compact options in this list. If you need a non-modular unit or a different form factor, SAMA does not offer those in this selection.
How to choose the right one
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Check the efficiency rating
You should look at the 80 PLUS Gold certification to ensure the unit converts AC power to DC power with minimal waste. Higher efficiency means less heat and lower electricity costs over time. Both SAMA models in this guide carry this Gold rating. This standard confirms that the power supply meets strict performance thresholds under various loads. You get more consistent voltage delivery and better thermal management. This is a key spec for builders who want reliable operation without excessive energy drain during long gaming sessions or rendering tasks.
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Verify the ATX version
Ensure the unit supports ATX 3.1 to guarantee compatibility with the latest motherboard standards. This version includes updated requirements for power delivery and signal handling. Both SAMA models feature this modern standard. It ensures the PSU can handle the power spikes of current high-end components. You avoid potential compatibility issues with new motherboards. The ATX version dictates the physical layout and electrical specifications. Choosing a unit with the latest version future-proofs your build against upcoming hardware changes and ensures stable communication with the system board.
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Confirm PCIe version support
Look for PCIe 5.1 support to safely power modern graphics cards. This standard introduces the 12V-2x6 connector, which handles higher power loads more safely than older designs. The SAMA GT750 explicitly supports this connector for modern GPUs. This feature prevents connector melting and ensures stable power during peak loads. You need this for any new high-performance video card. The PCIe version dictates how the PSU connects to your graphics hardware. Matching this spec is critical for the safety and stability of your visual processing unit.
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Select the correct size
Measure your case to ensure the PSU fits physically. Both SAMA units share a 5.9-inch width, which is standard for most ATX cases. However, the GT750 is 5.5 inches long, while the G650 is 5.9 inches long. You must check your case’s maximum PSU length before buying. A unit that is too long will not fit inside the chassis. This physical constraint is often overlooked. Always verify these dimensions against your case specifications to avoid installation problems. The width is consistent, so focus on the length difference for your specific build.
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Choose modularity type
Opt for fully modular cables to simplify cable management. This means you only connect the cables you actually need. Both SAMA models offer fully modular designs. This reduces clutter inside your case and improves airflow. You can route cables more cleanly for better aesthetics and cooling. Non-modular units force you to bundle unused cables, which can block air vents. Fully modular units give you control over the internal layout. This feature is essential for tight builds or white-themed cases where visible cables matter. It makes the installation process much easier and cleaner.
Frequently asked questions
Which SAMA power supply is best for white builds?
The SAMA GT750 is the top choice for white builds. It features a white finish and supports ATX 3.1 standards. The unit includes a 12V-2x6 connector for modern GPUs. Its compact dimensions allow it to fit in various cases. This model is ideal for builders who want clean aesthetics and high efficiency.
Is the SAMA G650 suitable for gaming?
Yes, the SAMA G650 is designed for gaming. It offers 650W of power with 80 PLUS Gold efficiency. The unit supports ATX 3.1 and PCIe 5.1 standards. It is fully modular, which helps with cable management in standard ATX cases. This black unit provides reliable power for mid-range gaming PCs.
What ATX version do these SAMA units support?
Both listed SAMA power supplies support the ATX 3.1 standard. This version ensures compatibility with modern components and power delivery requirements. The units also adhere to PCIe 5.1 specifications. This support allows for stable power delivery to high-end graphics cards and other current hardware.
Are these power supplies fully modular?
Yes, both the GT750 and G650 are fully modular. This means you can connect only the cables you need. This feature reduces clutter inside your case. It also improves airflow and makes cable management easier during the build process. You do not need to manage unused cables.
Do these units support modern graphics cards?
Yes, both units support modern graphics cards. The GT750 includes a 12V-2x6 connector for direct GPU power. Both models support PCIe 5.1 standards. This ensures they can handle the power demands of current high-performance GPUs without requiring adapters or risking instability.
What is the size of these SAMA power supplies?
Both units share a width of 5.9 inches. The GT750 is 5.5 inches long, while the G650 is 5.9 inches long. Both have a height of 3.3 inches. These dimensions fit standard ATX cases. The compact width allows for flexibility in case selection and installation.
Which SAMA PSU is better for efficiency?
Both units offer 80 PLUS Gold certification. This rating indicates high efficiency in converting AC power to DC power. Higher efficiency reduces heat output and energy waste. You get reliable performance with minimal power loss. Both models are efficient choices for your build.