Thermaltake Toughpower PT 1200W PSU ATX 3.1 (2025)
Today we take a look at a new power supply from Thermaltake, the Toughpower PT 1200W, one of their latest Platinum ATX 3.1 certified units. This fully modular unit has achieved Cybenetics Platinum certification and there are three models available to purchase rated 850W, 1000W and 1200W. Today we look at the flagship (1200w) model in the range which is competitively priced in the UK. Is it worth the modest asking price? We find out today.

This 1200W PSU is being sold in the United Kingdom for £169.99 inc vat (HERE), so while it isn't ‘bargain basement' it is less than half the price of some of the highest cost Platinum rated units we have tested in the last two years. I would class this as affordable in the high end sector. We know this is a CWT design for Thermaltake and we will take a closer look at this later in the review when we open the unit for analysis.
Product Overview:
80 PLUS Platinum Certification
This unit is 80 PLUS Platinum certified, achieving up to 92% energy efficiency. High efficiency translates to lower power consumption, less waste heat, and reduced electricity costs, all contributing to a more sustainable operation, the Toughpower PT 1200W Platinum also supports Energy Star 5.0 energy standard making it suitable for use in Energy Star-compatible computers.
Continuous Power Output
Available in 850W, 1000W, and 1200W variants, this model provides guaranteed continuous power delivery even at elevated temperatures up to 40°C (104°F). This ensures robust performance during demanding applications and maintains stability in thermally challenging environments.
Fully Modular Zero Cable Platform
Adopting a fully modular design, the PT 1200W features an advanced Zero Cable Platform that removes internal cable clutter. All PCBs are interconnected through connectors rather than wires, which improves efficiency, cooling, and overall build quality.
Low-profile Etched Black Cables
The included low-profile etched black cables are flexible and space-saving, optimizing airflow and cable management inside the PC case. This design focus not only enhances aesthetics but also makes installation and future upgrades easier.
100% Japanese 105°C Electrolytic Capacitors
Only premium Japanese electrolytic capacitors rated at 105°C/221°F are used, ensuring long-term reliability and improved operational lifespan. These components are highly resistant to heat, which is crucial for power supply durability under sustained load.
Ultra Quiet 135mm Hydraulic Bearing Fan
Cooling is handled by an ultra quiet 135mm hydraulic bearing fan, chosen for its reliable airflow and silent operation. This advanced fan design enables efficient cooling while keeping the noise profile impressively low, suitable for quiet PC builds.
High Amperage Single +12V Rail
A single +12V rail design provides high amperage output, delivering stable and consistent power for power-hungry components like modern GPUs and CPUs. This design minimizes voltage fluctuation and maximizes system safety.
DC-DC and LLC Topology
The PT 1200W incorporates DC-DC and LLC resonant converter designs, ensuring more precise electrical output. This means improved voltage regulation across multiple loads, enhancing compatibility and resilience for sensitive components.
Intel C6/C7 States & ErP Ready
It is fully compatible with Intel C6/C7 low power states and meets ErP (Energy-related Products) directives, making it well-suited for energy-efficient systems and compliance with stringent global power consumption standards.
Comprehensive Industry Grade Protections
Built-in protections include OCP (Over Current Protection), OVP (Over Voltage Protection), UVP (Under Voltage Protection), OPP (Over Power Protection), OTP (Over Temperature Protection), and SCP (Short Circuit Protection). These comprehensive safeguards ensure the safety of the system and the longevity of the power supply.
10-Year Warranty
Thermaltake backs the Toughpower PT 1200W Platinum with a 10-year warranty, reflecting the brand's confidence in its product's reliability and offering long-term assurance to users.




















