SAMA Black 750W Power Supply - Fully Modular 80 Plus Gold Certified ATX 3.1 & PCIE 5.1 Compliant Power Supply, Supports RTX 30/40 Series GPUs
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AI Verdict
This 750W 80 Plus Gold, fully modular ATX 3.1 and PCIe 5.1 power supply is for PC builders needing modern GPU compatibility on a budget.
This PSU is a situational fit, offering modern ATX 3.1 and PCIe 5.1 support with 750W and 80 Plus Gold efficiency. However, user feedback points to potential compromises in noise levels and perceived build quality that might not suit all users.
If a quieter, more premium experience is crucial, look for PSUs with higher efficiency ratings like Platinum or Titanium, and check for specific fan noise benchmarks from established brands.
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Pros
- Designed to meet ATX 3.1 standards with native PCIe 5.1 ports and cables, supporting RTX 3090 Ti and RTX 40 series graphics cards.
- Full modular cabling means you only connect the necessary cables, aiding in cable management.
- 80 PLUS Gold certification ensures at least 87% efficiency under various loads, reducing energy waste.
- Temperature-controlled fan dynamically adjusts speed for cooling under heavy loads and quieter operation during lighter tasks.
- Certified to CQC 5000M high-altitude standards, performing reliably in demanding environments.
- Adapts seamlessly to regions with voltage challenges, from low and unstable power to high-voltage fluctuations.
Cons
- Flat cables can be less flexible, making neat routing tricky in tighter cases.
- Fan can get louder than expected under heavy loads, potentially impacting quiet builds.
- Some users reported the materials feel a bit cheap, raising concerns about long-term durability.
- Cooling efficiency reportedly struggles to keep temperatures down during intense gaming sessions.
Dimension Scores
The 80 Plus Gold certification indicates at least 87% efficiency, which is above the basic standard for power supplies.
The temperature-controlled fan aims for quiet operation, but user reports indicate it can become audible under heavy system loads.
While certified for high-altitude and offering modern standards, some users have noted that the materials feel less premium.
Full modularity is a significant advantage for cable management, but the flat cables can be less flexible and harder to route neatly.
Best For
- Gaming PCs with RTX 30/40 series GPUs requiring native PCIe 5.1 power.
- PC builds where streamlined cable management is a priority.
- Systems in high-altitude environments or regions with unstable power grids.
Not Recommended For
- Users prioritizing a whisper-quiet PC build under heavy load.
- Builders who prefer established, premium PSU brands with extensive independent reviews.
- Very compact ITX cases where flat, less flexible cables could be a significant challenge.
Watch Out For
- Some buyers received older non-PCIe 5.1 units, requiring adapters for full compatibility.
- The flat cables, while modular, are reported to be less flexible, complicating routing in some builds.
- The fan can become noticeably loud during intense gaming or heavy system loads.
- Perceived build quality, with some users noting materials feel less premium than expected.
Full Specifications
| ASIN | B0DM2HP39G |
| Brand | SAMA |
| Wattage | 750 watts |
| Form Factor | ATX |
| Item Weight | 4.62 pounds |
| Manufacturer | SAMA |
| Connector Type | ATX, PCIe |
| Cooling Method | Air |
| Output Wattage | 750 Watts |
| Compatible Devices | Gaming PC, High-end GPU, ATX Case, PCIe 5.1 Devices |
| Product Dimensions | 5.51 x 5.91 x 3.39 inches |
| Minimum Input Voltage | 90 Volts (AC) |
| Item dimensions L x W x H | 5.51 x 5.91 x 3.39 inches |
What Buyers Say
Despite its modern ATX 3.1 and PCIe 5.1 compliance, user feedback frequently highlights issues with the physical cables and fan noise. Many appreciate the fully modular design for tidiness, but the flat cables are often cited as stiff and difficult to bend for clean routing. Under load, the fan's noise level can increase beyond expectations, which is a concern for those aiming for a quiet build. There are also mentions of the materials not feeling as robust as some competitors, and a few users even received older units that weren't fully PCIe 5.1 compliant out of the box.
“Look, it powers my 4070, but those flat cables are a nightmare to bend, and when I'm gaming, it sounds like a tiny jet engine starting up in my case. Wish the cables were softer.”
Common Praise
- Native PCIe 5.1 ports and cables for RTX 40 series GPUs.
- Fully modular design simplifies connecting only necessary cables.
- 80 Plus Gold efficiency helps reduce heat and power consumption.
- Supports modern ATX 3.1 standard.
Common Complaints
- Flat cables are stiff and difficult to route neatly.
- Fan noise becomes noticeable under heavy gaming or system load.
- Materials used in construction feel less durable or 'cheap' to some users.
- Some units shipped were older revisions, lacking full PCIe 5.1 without adapters.
- Cooling performance struggles to maintain low temperatures during intense use.
Ownership Tips
- Expect to spend extra time wrestling with the flat cables to achieve a clean build aesthetic.
- The fan noise under load might require adjusting your PC's placement if you're sensitive to sound.
- Double-check the unit upon arrival to ensure it's the correct ATX 3.1/PCIe 5.1 revision.
- Consider alternative cooling solutions for your case if you plan on intense, prolonged gaming sessions.
Frequently Asked Questions
Is this PSU compatible with my RTX 40-series GPU?
Yes, it's designed with native PCIe 5.1 ports and cables to fully support RTX 3090 Ti and RTX 40 series graphics cards.
What does 'fully modular' mean for cable management?
Fully modular means you only plug in the cables your PC actually needs, which helps reduce clutter and improve airflow inside your case.
How quiet is this power supply?
It features a temperature-controlled fan that adjusts its speed for quieter operation during lighter tasks, but some users have reported it can get louder under heavy loads.
What does 80 Plus Gold certification mean?
80 Plus Gold certification means the PSU maintains at least 87% efficiency under various loads, which helps reduce energy waste and heat output.
Can this PSU handle unstable power conditions?
Yes, it's built for versatility and adapts seamlessly to regions with voltage challenges, including low and unstable power or high-voltage fluctuations.
Buying Guide
When picking a power supply, you're essentially choosing the heart of your PC. The wattage needs to match your components, especially your graphics card, with some headroom. Efficiency, like 80 Plus Gold, tells you how much power it wastes as heat – higher is better for your electricity bill and your PC's temperature. Modularity affects how tidy your build looks and how easy it is to manage cables. Modern standards like ATX 3.1 and PCIe 5.1 are crucial if you're running the latest powerful GPUs, as they ensure proper power delivery without needing adapters.
wattage (750 watts)
This is the maximum power your PSU can deliver. Think of it like the engine size in a car; 750 watts is enough for most mid-to-high-end gaming PCs, especially with RTX 30/40 series GPUs, but always check your specific GPU and CPU requirements.
80 Plus Gold Certified
This certification means the power supply is at least 87% efficient at 50% load. It's like getting better gas mileage for your PC; less energy is wasted as heat, which saves you a little on your power bill and keeps your PC cooler.
Fully Modular
This means you only plug in the cables you actually need for your components. It's a huge win for cable management, making your PC build look cleaner and improving airflow inside the case, unlike non-modular PSUs with all cables permanently attached.
ATX 3.1 & PCIE 5.1 Compliant
These are the latest standards for power supplies, especially important for modern, power-hungry graphics cards like the RTX 40 series. It ensures your PSU can deliver stable power directly to these GPUs without issues, often with a single, dedicated cable.
Alternatives
If this PSU doesn't fit, look for models with higher 80 Plus efficiency ratings (Platinum or Titanium) for less heat and noise, or those with a documented low noise fan profile and more flexible, sleeved cables for easier routing.
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