Seasonic Focus GX 1000W Power Supply ATX 3.1 PCIe 5.1 (12V-2x6) 10 Years Warranty Cybenetics Gold Fully Modular RTX 5090 AMD RX 9000 Ready
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AI Verdict
This 1000W ATX 3.1, PCIe 5.1 power supply with a native 12V-2x6 connector is for high-end desktop builds needing future-proof GPU power.
This power supply is a strong fit for high-performance desktop PCs, especially those featuring upcoming NVIDIA RTX 5090 or AMD RX 9000 GPUs, thanks to its ATX 3.1 and PCIe 5.1 compliance with a native 12V-2x6 connector. Its 1000W output and 10-year warranty also provide ample power and peace of mind for demanding systems.
If 1000W is excessive for your current components, consider a lower wattage ATX 3.1 unit to potentially save money without sacrificing future compatibility.
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Pros
- Delivers 1000 watts of power, ready for NVIDIA RTX 5090 and AMD RX 9000 GPUs
- Features a native 12V-2x6 connector, meeting ATX 3.1 and PCIe 5.1 standards
- Achieves 80 PLUS Gold and Cybenetics Gold certification for power efficiency
- Includes a 135 mm FDB fan with hybrid fan control for quiet operation
- Comes with a 10-year warranty, indicating manufacturer confidence
- Maintains precise voltage regulation (12V rail at 0.4%, 5V rail at 0.6%, 3.3V rail at 0.5%)
Cons
- Some users report a noticeable 'click' sound when the unit turns on or off
- The white model has a black fan and grille, which might not suit a fully white PC aesthetic
- Tom's Hardware review noted a conservative number of connectors for a 1000W unit
- The retail price is considered high by some reviewers
Dimension Scores
The 1000W output, 80 PLUS Gold and Cybenetics Gold certifications, and ATX 3.1 / PCIe 5.1 compliance with a native 12V-2x6 connector place it at the top for modern high-power systems.
The 135 mm FDB fan with hybrid fan control allows for silent operation at low loads, though some users report a minor click during power cycling.
Utilizing 100% Japanese 105°C-rated electrolytic capacitors and demonstrating precise voltage regulation (12V rail at 0.4%) points to high-quality internal components and robust construction.
Being fully modular allows for clean cable routing and improved airflow, and users report the stock cables are easy to bend.
Best For
- New PC builds with NVIDIA RTX 5090 or AMD RX 9000 series GPUs
- Users prioritizing long-term component reliability with a 10-year warranty
- Systems requiring stable power delivery for overclocked CPUs and multiple high-power components
- Quiet PC builds due to its hybrid fan control and FDB fan
Not Recommended For
- Budget PC builds where 1000W is overkill for the components
- Users sensitive to minor audible clicks during power cycling
- Compact ITX cases due to its standard ATX form factor
Watch Out For
- The 'white' version of the PSU still has a black fan and grille, potentially clashing with an all-white build theme
- Some users report a distinct 'click' sound when the power supply is turned on or off
- Despite 1000W, the number of included connectors might be fewer than expected for some complex builds
Full Specifications
| ASIN | B0DLFKRJDC |
| Brand | Seasonic |
| Wattage | 1000 watts |
| Model Name | Focus GX-1000 ATX 3.1 |
| Form Factor | ATX |
| Item Weight | 3.48 pounds |
| Manufacturer | Seasonic |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1000 Watts |
| Item model number | Focus GX-1000 ATX 3.1 |
| Compatible Devices | Desktop |
| Product Dimensions | 5.5 x 5.9 x 3.4 inches |
| Item dimensions L x W x H | 5.5 x 5.9 x 3.4 inches |
What Buyers Say
Users frequently highlight the quiet operation of this power supply, often attributing it to the hybrid fan mode that keeps the fan off during lighter loads. Many appreciate the included cables, noting their flexibility and ease of routing in a build. The 10-year warranty is a recurring point of confidence for buyers, suggesting a belief in the product's longevity. However, a few people have mentioned a distinct 'click' sound when the unit powers on or off, which can be a minor annoyance. The 'white' version also has a black fan and grille, which some found visually inconsistent with an all-white aesthetic.
“Man, this thing is quiet, like, really quiet until my 4090 starts drawing serious power, then the fan kicks in but it's still barely noticeable. Only thing is that little click when I turn my PC on, but whatever, it works.”
Common Praise
- The 135 mm FDB fan runs silently during typical use due to hybrid fan control
- Cables are flexible and easy to manage in a PC build
- The 10-year warranty provides significant peace of mind for long-term use
- Power delivery is stable and consistent even under load
- ATX 3.1 and PCIe 5.1 readiness with a native 12V-2x6 connector is a key selling point for new GPU compatibility
Common Complaints
- A noticeable 'click' sound occurs when the PSU powers on or off
- The white version of the unit has a black fan and grille, which can be a visual mismatch
- The number of included connectors is considered conservative for a 1000W unit
- The price point is higher than some competing 1000W units
Ownership Tips
- The hybrid fan mode means the fan often stays off during web browsing or light gaming, keeping the system extra quiet.
- Cable routing is straightforward because of the fully modular design and pliable cables.
- The unit's compact 140mm ATX form factor makes it easier to fit into various cases, even with ample cable room.
- The 12V-2x6 connector feels secure and provides confidence for high-power GPUs.
Frequently Asked Questions
Is this power supply compatible with the RTX 5090?
Yes, this Seasonic Focus GX 1000W PSU is specifically designed to be NVIDIA RTX 5090 ready, featuring ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector.
Does this PSU have a quiet fan?
Yes, it includes a 135 mm FDB fan with hybrid fan control, which allows the fan to turn off at low loads for silent operation.
What kind of warranty does this power supply offer?
The Seasonic Focus GX 1000W comes with a 10-year warranty, covering potential defects and ensuring long-term reliability.
Is this a fully modular power supply?
Yes, it is a fully modular power supply, meaning all cables are detachable, which helps with cable management and airflow inside your PC case.
What is the efficiency rating of this power supply?
This power supply is 80 PLUS Gold and Cybenetics Gold certified, indicating high power efficiency, which can lead to lower electricity bills and less heat generation.
Buying Guide
When you're looking at a power supply, you're basically picking the heart of your PC. It needs to supply enough juice for all your components, especially your graphics card and CPU, without breaking a sweat. You want to make sure it's efficient so you're not wasting electricity, and that it has the right connectors for your current and future parts. Don't cheap out here; a bad power supply can take out other components.
Wattage (1000W)
This is how much power the unit can deliver. Think of it like the horsepower of a car; more wattage means it can handle more demanding components, especially high-end graphics cards like the RTX 5090. If you don't have enough, your system won't run stably or might not even turn on.
ATX 3.1 / PCIe 5.1 (12V-2x6)
These are the latest power standards, specifically designed for modern, power-hungry GPUs. The 12V-2x6 connector is a dedicated cable that can deliver a lot of power directly to your graphics card, preventing issues seen with older adapter cables. It's like having a dedicated fast lane for your GPU's power needs.
80 PLUS Gold / Cybenetics Gold
This indicates how efficiently the power supply converts wall power into usable PC power. Gold ratings mean it's very efficient, wasting less energy as heat. This saves you a little on your electricity bill and keeps your PC cooler, like a fuel-efficient car.
Fully Modular
This means you only plug in the cables you actually need. It's a huge win for cable management, making your PC build look much cleaner and improving airflow inside the case. It's like having custom-length cables instead of a tangled mess.
Alternatives
If this unit is overkill, look for a fully modular ATX 3.1 power supply with a native 12V-2x6 connector in the 750W-850W range with an 80 PLUS Gold rating. If you need more connectors, seek out units specifically advertising a higher number of PCIe or SATA connections.
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