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Thermaltake Toughpower GT 1200W; ATX 3.1; x2 Native PCIe 5.1 12V-2x6; Full Modular; Flat Cables; Color Matched Connectors; Japanese Main Capacitors; 80 Plus Gold; 140mm; Black; PS-TPT-1200FNFAGU-3
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AI Verdict
This 1200W ATX 3.1 power supply with two native PCIe 5.1 12V-2x6 connectors is for builders needing high-wattage, future-proof power in a compact 140mm length.
This 1200W ATX 3.1 power supply is a strong fit for high-performance systems due to its dual native PCIe 5.1 12V-2x6 connectors and compact 140mm form factor. It delivers the necessary power and modern connectivity for current and upcoming GPUs, while fitting into more constrained chassis designs.
If 1200W is overkill for your current setup, consider a lower wattage ATX 3.1 PSU with a single native 12V-2x6 connector to save on cost without sacrificing modern features.
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Pros
- Meets ATX 3.1 specifications, supporting up to 3x GPU power excursions and 2x total power excursions for system stability.
- Includes two native PCIe 5.1 12V-2x6 cables, each capable of delivering up to 600W to modern GPUs.
- Features a compact 140mm length, allowing for easier fitment in cases with limited space.
- Utilizes full modular flat cables with color-matched connectors, improving flexibility for routing and management.
- Equipped with Japanese main capacitors for enhanced durability and a 5-year warranty for extended coverage.
- Operates with an 80 Plus Gold efficiency rating, achieving up to 90% efficiency.
Cons
- The 120mm hydraulic bearing fan, while featuring Smart Zero Fan mode, may still produce audible noise under higher loads, as some older Thermaltake 1200W units were noted for fan noise without temperature control.
- Some users have reported intermittent high-pitch noise or coil whine from Thermaltake PSUs, particularly at low loads, which could be a concern for silence-focused builds.
- While flat cables aid routing, some users might prefer individually sleeved cables for a more premium aesthetic or specific build themes.
Dimension Scores
Delivers 1200W with 80 Plus Gold certification, achieving up to 90% efficiency, and meets ATX 3.1 standards for handling power excursions.
Features a 120mm hydraulic bearing fan with Smart Zero Fan mode for quiet operation at low loads, but some Thermaltake PSUs have been noted for audible fan noise or coil whine under load.
Incorporates Japanese main capacitors and industrial-grade protections (OCP, OVP, UVP, OPP, SCP, OTP), backed by a 5-year warranty.
Fully modular design with flat, color-matched cables provides flexibility and simplifies routing within a PC case.
Best For
- High-end gaming PCs with power-hungry GPUs requiring native PCIe 5.1 12V-2x6 connectors.
- Workstations running multiple components that demand stable 1200W power delivery.
- Compact PC builds where the 140mm PSU length is critical for component clearance.
- Users prioritizing ATX 3.1 compliance for future-proofing against power excursions.
Not Recommended For
- Budget-constrained builds, given its entry-plus price band and high wattage.
- Ultra-silent PC enthusiasts who are sensitive to any potential low-load coil whine or fan noise.
Watch Out For
- Potential for audible coil whine, as reported by users with similar Thermaltake models, especially at low power draw, which can be distracting in quiet environments.
- The 120mm fan, despite Smart Zero Fan mode, might become noticeable under significant load, contrasting with the 'Cool and Quiet' marketing.
- While the 140mm length is compact, ensure your case has adequate clearance for the fully modular cables, as routing can still be tight in very small form factor cases.
Full Specifications
| ASIN | B0FK36N2T3 |
| Brand | Thermaltake |
| Color | Black |
| Series | Toughpower GT 1200W |
| Wattage | 1200 watts |
| Model Name | Toughpower GT 1200W |
| Form Factor | ATX |
| Item Weight | 6.36 pounds |
| Manufacturer | Thermaltake |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1200 Watts |
| Item model number | PS-TPT-1200FNFAGU-3 |
| Compatible Devices | PC |
| Product Dimensions | 5.9 x 5.5 x 3.4 inches |
| Power Supply Design | Full Modular |
| Item Dimensions LxWxH | 5.9 x 5.5 x 3.4 inches |
| Item dimensions L x W x H | 5.9 x 5.5 x 3.4 inches |
What Buyers Say
While the Thermaltake Toughpower GT 1200W boasts modern ATX 3.1 and PCIe 5.1 compatibility, some users have reported concerns about noise. Specifically, there are mentions of intermittent high-pitch noise or coil whine, particularly at low loads, which could be a dealbreaker for those seeking a truly silent system. The compact 140mm length and fully modular flat cables are frequently highlighted as practical benefits for system builders, making installation smoother.
“Man, this thing powers my RTX 4090 like a champ, no issues there, but when I'm just browsing, I swear I can hear a faint high-pitched hum. It's not constant, but it's there and kinda annoying when everything else is quiet.”
Common Praise
- Native PCIe 5.1 12V-2x6 cables directly support high-power GPUs without adapters.
- The 140mm length makes it easier to fit into smaller cases compared to longer PSUs.
- Full modularity with flat cables simplifies cable routing and reduces clutter inside the chassis.
- ATX 3.1 compliance provides confidence for handling transient power spikes from modern hardware.
- Japanese main capacitors are used, suggesting a focus on component longevity.
Common Complaints
- Reports of high-pitch noise or coil whine, especially when the system is at low power draw.
- Fan noise can become noticeable under higher loads, despite the Smart Zero Fan feature.
- Some users might find the flat cables less aesthetically pleasing than individually sleeved options, even with color-matched connectors.
Ownership Tips
- The Smart Zero Fan mode works as advertised, keeping the fan off during light tasks, but the fan spin-up can be audible.
- The flat cables, while flexible, require careful routing to look truly clean, especially if you're particular about aesthetics.
- The 12V-2x6 connectors feel secure and deliver consistent power to the GPU, preventing any power-related crashes during intense gaming sessions.
- The compact size genuinely helps with case compatibility, especially in mid-tower cases where larger PSUs can restrict airflow or cable space.
Frequently Asked Questions
Does this PSU come with the new 12V-2x6 cables for RTX 40-series GPUs?
Yes, it features two native PCIe 5.1 12V-2x6 cables, each capable of delivering up to 600W, making it compatible with high-power RTX 40-series graphics cards.
Is this power supply fully modular?
Yes, the Thermaltake Toughpower GT 1200W is fully modular, meaning you only connect the cables your system needs, which helps with cable management and airflow.
What is the length of this power supply?
The PSU has a length of 140mm, which is considered compact for a 1200W unit and can be beneficial for builds with limited space.
Does it have a 'zero fan' mode for quiet operation?
Yes, it includes a Smart Zero Fan mode, which allows the fan to remain off at low loads for silent operation until a certain temperature or load threshold is met.
What kind of capacitors does this power supply use?
This power supply uses Japanese main capacitors, which are generally associated with higher quality and longer lifespan.
Buying Guide
When you're picking a power supply, you're essentially choosing the heart of your PC. It needs to deliver enough stable power to all your components, especially your CPU and GPU. Don't just look at the wattage; consider efficiency ratings like 80 Plus Gold, which means less wasted energy and less heat. Modern PSUs also need to keep up with new standards like ATX 3.1 and PCIe 5.1, especially if you're running the latest graphics cards, to prevent system instability from power spikes.
Wattage (1200W)
ATX 3.1 & PCIe 5.1 12V-2x6
80 Plus Gold Efficiency
Full Modular
Alternatives
If this PSU is too powerful or expensive, look for an ATX 3.1 certified unit with a lower wattage (e.g., 850W or 1000W) and at least one native PCIe 5.1 12V-2x6 connector, maintaining modern compatibility for less demanding systems.



