Seasonic has announced a major milestone for its flagship PRIME series, with the PRIME TX-1600 becoming the first retail PC power supply to achieve CQC Level 5 energy efficiency certification. Awarded by the China Quality Certification Center, this represents the highest efficiency tier available for consumer-grade power supplies and reinforces Seasonics position at the forefront of high-performance PSU design.
Building on the long-standing reputation of the PRIME series, the TX-1600 is designed for demanding enthusiast, workstation and AI-focused systems where efficiency, stability and long-term reliability are critical. The certification adds to the units existing Titanium efficiency credentials from both 80 PLUS and Cybenetics.
First retail PC power supply to receive CQC Level 5 energy efficiency certification
Titanium-rated efficiency exceeding 95 percent, even at full 1600W load
Ultra-low-loss analog circuit design with tight voltage regulation below 0.5 percent
Meets and exceeds ATX 3.0 requirements, with support for newer standards in updated variants
Seasonic notes that CQC Level 5 certification extends beyond peak efficiency figures. The evaluation process includes consistency testing, key component reliability, and audits of research, manufacturing and quality control processes, placing strong emphasis on long-term performance and sustainability.
Advanced bridgeless interleaved PFC with full-bridge LLC and synchronous rectification
Premium components from suppliers such as Infineon and Texas Instruments
High-quality Japanese capacitors rated at 105 degrees Celsius
Smart Dual Protection combining hardware and firmware-based safety mechanisms
The Seasonic PRIME TX-1600 is backed by a 12-year warranty and is designed to maintain stable output under sustained heavy loads and frequent power fluctuations, making it suitable for professional workstations and AI-intensive systems operating around the clock.
Check out our review of the Seasonic PRIME TX-1600 Noctua Edition PSU which is based on the PRIME TX-1600 power supply unit.
Seasonic PRIME ENTERPRISE
Alongside this announcement, Seasonic also highlighted its PRIME ENTERPRISE platform, which extends the PRIME design philosophy towards enterprise, industrial and AI workloads. These models incorporate additional technologies aimed at improving thermal performance, transient response and connector-level protection for continuous operation.
OptiGuard intelligent pin-level power connector protection
OptiSink high-efficiency thermal design for sustained output
Enhanced EMI and EMC suppression for improved system stability
Learn more about the Seasonic PRIME ENTERPRISE platform designed for AI computing at seasonic.com/prime-enterprise.





