50 Years of Excellence
This year, at Computex, Sea Sonic is celebrating 50 incredible years of global industry leadership in power supply design and manufacturing! This past half a century in existence included many important achievements and great partnerships that have forged the company identity and laid the foundations for a continued, strong position in the PC industry.
From humble beginnings at a small workshop in Taipei to establishing a trustworthy brand as a global trendsetter, Sea Sonic has evolved during the past 50 years to become a pioneer and a leader in power supply technology and production. Setting new trends and creating novel standards, Sea Sonic has created a complete line of products along the way to cater to a large variety of end users.
The celebration of this important company milestone at Computex 2025, alongside our partners, friends and visitors, is a true reflection of our wish to share these festivities with the people who helped us get here. We are aware that achieving outstanding results could not have been possible without our great partners who support us, and our loyal customers who believe in our products.
Computex 2025 is not only a reflection on our past 50 years in business, but with many new products on show, it is also a testament to our relentless commitment to innovation and excellence that define Sea Sonic and will continue to shape the computer industry.
During the past decades, personal computers have been the backbone of work and gaming and became an integral part of modern life, leisure, and learning as we know it today. As screen quality and graphics card technologies are evolving at a rapid rate, it is inevitable that performance and compatibility come to the forefront, together with an incessant concern toward sustainability.
There could have been a point in time, when we thought that the PC power supply design started to stabilize, reaching its culminating point, but the rapid development of modern AI technologies suddenly posed new challenges to the PC industry affecting all hardware components with a new demand to ramp up performance.
PC power supplies are “The Heart of Your System” and therefore must be able to provide an ever-increasing safe power to keep up with the demands of high-power applications. In this new era of AI revolution, Sea Sonic has started to introduce a new set of features under the umbrella name of OptiTech™.
So far there are two prominent design elements that are strengthening the Seasonic power supply design: OptiSink™ and OptiGuard™.
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OptiSink™ was introduced at Computex 2024, as a first step to rehaul the entire PCB layout and manufacturing of Seasonic power supplies. The idea behind the process was to improve the cooling inside the power supply, which was achieved by increasing the internal space to facilitate better air movement. Internal components such as MOSFETs and heatsinks were not only reorganized but made smaller to reduce the footprint of these components.
During the past year we have learned a lot about the workings of this design and the process of production, and it is time this year to introduce now tweaks to this design to make it even better.
OptiSink 2.0™ features an updates Seasonic Printed Circuit Board (PCB) layout incorporating Surface Mount Technology (SMT). During the manufacturing process the SMD MOS (metal–oxide–semiconductor) and the SMD heatsinks are directly soldered onto the PCB, which greatly reduces production errors, material usage, and electricity costs. Additionally, metal cooling caps are placed over the MOS to further improve cooling.
Key Features:
- Enlarged Heatsink: Increasing the heatsink volume and extending coverage over the top of the MOSFET expands the surface area, thereby improving heat dissipation efficiency and increasing thermal capacity. This effectively lowers the MOSFET temperature and delays the fan’s startup point.
- Thermal Paste Injection: Injecting thermal paste to fill the gaps between the MOSFET and the heatsink creates a secondary heat dissipation path, enhancing the cooling efficiency of the MOSFET.
- Improvement: Based on simulations and testing, MOSFET temperatures can be reduced by up to 20%, allowing for lower fan speeds and resulting in quieter power supply operation.
This novel design further improves conductivity and increases heat dissipation. Thanks to the OptiSink 2.0™ Design, the internals of the power supply remain cooler, further lowering the need to use cooling fans, which eventually leads to energy savings and a quieter operation.
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OptiGuard™ is a new feature under the OptiTech™ umbrella name that was coined to mean a new set of Seasonic technologies geared toward making a Seasonic power supply a specially tweaked, perfectly working, optimized-for-best-performance unit. Besides OptiSink™, OptiGuard™ is the second key feature getting introduced into the Seasonic power supplies to make them optimized for the ultimate protection against excessive power and temperature conditions in certain situations.
Poor cable management and the usage of low-quality materials in cables and connectors have resulted in unexpected overheating of cables and connectors in the past to compromise hardware safety. Recognizing the seriousness of such incidences and the elevated need to protect hardware the most efficient way, Seasonic engineers developed a foolproof solution to avoid any damage that may arise from overheating or over-power situations.
OptiGuard™ is an advanced safety feature to protect systems using high-power graphics cards. There are sensors installed at the terminals of the 12V-2×6 connectors to constantly monitor current and temperature readings. As soon as there is a sudden spike or abnormal reading detected, the power supply controls are quickly able to respond and safeguard the GPU and the entire system.
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High power density power supplies play a very important role in modern systems. Seasonic’s OptiSink design has laid the groundwork for the further reduction of the size of the power supply while maximizing the output wattage.
Besides its striking new look, Seasonic’s newest flagship PRIME HPD series boosts excellent electrical performance. Compared to the previous PRIME series models, ripple and noise values have been reduced to 15 mV, making it lower than most flagship products on the market.
The new PRIME HPD series inherits the ultra-long hold-up time characteristic of the PRIME series, with hold-up time tested to exceed 20ms.
Key Features
- High Power Density
The introduction of the OptiSink™ cooling solution significantly reduces the power supply’s size while maintaining high power output (up to 1200W). Measuring just 125mm in depth, the PSU employs advanced OptiSink™ heat dissipation technology to lower thermal resistance and component temperatures—even at high wattage output. Compared to the VERTEX GX-1200, the overall volume is reduced by more than 50%. - Seasonic 4th-Generation Fan Control – Advanced Fanless Mode
The fan remains completely off under low to moderate loads for true 0 dBA operation. Under higher loads, it activates only at ultra-low speeds, maintaining excellent acoustic performance. - Low Ripple and Noise
PRIME HPD delivers exceptionally low ripple and noise performance. Compared to the previous PRIME series, ripple and noise levels have been reduced by 5 mV (down to 15mV)—making it lower than most flagship products on the market. - Ready for the Future (ATX 3.1 / PCIe 5.1)
Fully compliant with the latest standards and equipped with a dual-color 12V-2×6 connector, ensuring stable and safe power delivery for next-gen graphics cards. - New Design Aesthetic
The PRIME HPD series debuts a bold new design, featuring a multi-layered structure that gives it a striking and sophisticated appearance. - 80 PLUS Platinum Certified
Delivers up to 92% efficiency at 50% load, ensuring a balance of power, performance, and energy savings.
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Following the success of the flagship PRIME TX-1600 Noctua Edition, Seasonic is once again teaming up with renowned PC cooling specialist Noctua to unveil the next evolution in silent power supplies: the PRIME PX HPD Noctua Edition.
This new collaborative PSU series combines top-tier performance, advanced cooling, and an impressively compact 125mm chassis, available in 850W, 1000W, and 1200W models. With the integration of Noctua’s latest NF-A12x25 G2 fan and Seasonic’s high power density OptiSink architecture, it’s the smallest Noctua-co-branded ATX PSU to date—crafted for builders who value power, silence, and space efficiency in a refined package.
Key Features
- Noctua NF-A12x25 G2 Fan with Custom Grille
Outfitted with Noctua’s next-generation fan and a specially engineered grille, this PSU delivers optimized airflow and ultra-quiet performance. - Seasonic 4th-Generation Fan Control – Advanced Fanless Mode
The fan remains completely off under low to moderate loads for true 0 dBA operation. Under higher loads, it activates only at ultra-low speeds, maintaining excellent acoustic performance. - Ultra-Compact 125mm Chassis + Single OptiSink™ Cooling
Measuring just 125mm in depth, the PSU uses Seasonic’s advanced OptiSink™ heat dissipation technology to reduce thermal resistance and component temperatures—even under high wattage output. - Ready for the Future (ATX 3.1 / PCIe 5.1)
Fully compliant with the latest standards and equipped with a dual-color 12V-2×6 connector, ensuring stable and safe power delivery for next-gen graphics cards. - Noctua Signature-Sleeved Modular Cables
Featuring Noctua’s iconic color scheme, the modular cables are crafted from high-quality, flexible PET braided material—offering both durability and aesthetic appeal. Dedicated cable combs ensure clean, clutter-free, and stylish cable management. - 80 PLUS Platinum Certified
Delivers up to 92% efficiency at 50% load, ensuring a balance of power, performance, and energy savings.
The Seasonic PRIME PX HPD Noctua Edition is scheduled for release in Q2 2026 and makes its exclusive debut at Computex 2025. Stay tuned to official Seasonic and Noctua channels for detailed specifications, availability, and launch announcements.
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“Make sure you have the right wattage power supply!” We hear this advice very often in connection with designing a new PC build. Knowing that the power supply power rating is only an indication of what power the power supply is capable to deliver, calculating your power requirement in a new build is very important and the Seasonic Wattage Calculator can be a big help in this process.
It wasn’t too long ago—back in 2011—when Seasonic introduced its first 1000-watt, 80 PLUS® Platinum-rated power supply, marking a major breakthrough at the time. Now, less than a decade and a half later, we are proud to bring a 3200-watt powerhouse to market, the PRIME PX-3200. Naturally, the question arises: “Is this wattage futureproof—and for how long?”
To achieve this unprecedented output, we’ve upgraded the PSU’s mainboard from a double-layer to a four-layer PCB, and optimized both the components and circuit design. The result? The highest-rated ATX power supply currently available.
But this 3200-watt monster isn’t just about raw power. It’s designed with next-generation GPUs and the increasing demands of AI computing in mind. And as always, it carries the core values of Seasonic: exceptional features, premium components, and the legendary build quality that professionals and enthusiasts have come to expect.
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For over 50 years, Seasonic has continuously innovated to make power supplies better, safer, and more versatile. Versatility is at the heart of our latest innovation: the CORE Dual — an inventive power supply that allows modular cables to be connected either at the back or on the side of the case.
This flexibility is made possible by our OptiSink™ technology and a high-quality 80 mm Dynamic Bearing fan – all within a remarkably compact 110 mm chassis. To switch cable orientation, the CORE Dual includes a smart, detachable plastic adapter. Attach it, and your cables can route sideways, al thel while the PSU continues to exhaust heat efficiently through the back of your PC case.
More than words, pictures tell the real story:
Despite its small size, the CORE Dual delivers up to 1000 W of power, with 80 PLUS® Gold efficiency, full ATX 3.1 and PCIe 5.1 compliance.
Small. Powerful. Exceptionally Versatile.
The CORE Dual is coming soon.
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The importance of color cannot be overstated, color influences your mood, stimulates your mind, and evokes emotions. As we chose hardware for our PC build, we are coming across many different colors or hardware nowadays which encourages us to color coordinate our favorite build.
Seasonic power supplies have traditionally been black or white, which did not give consumers options to match case or furniture color or develop a certain theme. Our 50th year anniversary, however, calls for a big celebration and we are introducing our colorful, shiny power supplies.
We hope that our customers will be pleased with these happy colors, we are happy to manufacture them for you!
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Dragon Song
The golden dragon ascending around a solid core pedestal, reaching towards the top-mounted Seasonic PRIME power supply is a symbol of pride and enduring legacy according to the artist’s vision. The luxurious gold was chosen for the dragon to show nobility, it is paired with understated and calm black surroundings to accentuate the gold color.
Designed around the Chinese cultural concept of Feng Shui, the dragon being a symbol of good luck and protection is summoned to celebrate the 50-year anniversary of Sea Sonic with its everlasting gold color. The core of the structure, housing the computer hardware, represents a “Treasure Cove”. The pattern decorating the center piece is inspired by the element of wind ( 风Feng), manifesting itself as a natural flow of energy.
At the front of the Treasure Cove is an inverted Chinese character for “Dragon” (龍), symbolizing the arrival of prosperity (“Dragon Arrival”). The characters for “wind” (风Feng) and “water” (水Shui) are CNC-engraved on the left and right sides, respectively. The two opposing sides at the base display the celebratory company logos honoring Sea Sonic’s 50th Anniversary. The rear panel is accented with diagonally placed gold and black Seasonic logos in a symmetrical layout.
Every little detail on this art piece was carefully considered and it took more than three months to complete the entire mod from concept design to completion. The core idea of the design is centered around prominence of the top-mounted Seasonic flagship PRIME power supply, with other components intentionally being hidden to give the PRIME the most distinctive spot. Beyond its striking and majestic appearance, the Dragon Song Mod does not compromise on performance; it features robust cooling elements and a rear-mounted GPU to ensure both visual appeal and flawless hardware operation.
| PSU | Seasonic PRIME PX-2200 ATX 3.1 |
| Motherboard | ROG STRIX B850-I GAMING WIFI |
| GPU | ASUS Dual GeForce RTX™ 4060 Ti |
| CPU | AMD R7 9900X |
| AIO | ID Cooling FX360 |
| SSD | T-CREATE CLASSIC PCIe 4.0 DL |
| Memory | G.SKILL Trident Z5 Royal (DDR5/Intel XMP) |
| Fans | Seasonic MagFlow 120 ARGB |
