Description
Segotep KL-1250G 1250W 80 Plus Gold PSU
The Segotep KL-1250G 1250W 80 Plus Gold Power Supply is a premium, high-performance PSU engineered for enthusiasts, professional creators, and extreme gaming systems. Built under Segotep’s flagship Kunlun (KL) Series, this fully modular ATX 3.0 power supply delivers outstanding efficiency, exceptional stability, and next-generation compatibility. Featuring 80 PLUS Gold certification, Active PFC, LLC Pro + DC-DC architecture, all-Japanese 105°C capacitors, and a native 600W PCIe 5.0 12VHPWR connector, the KL-1250G is designed to handle the latest NVIDIA GeForce RTX 40 and RTX 50 Series graphics cards as well as demanding workstation hardware.
With 1250W of continuous power, a powerful 104A single +12V rail, intelligent i-Stop fan technology, and up to 93.28% efficiency at 230V, this PSU ensures clean, stable, and reliable power delivery while minimizing heat generation and energy consumption. Whether you’re building a flagship gaming PC, AI workstation, rendering system, or overclocked enthusiast rig, the Segotep KL-1250G provides the power headroom and reliability needed for years of dependable operation.
Segotep KL-1250G 1250W 80 Plus Gold PSU Specifications
| Model | Segotep KL-1250G |
| Series | Kunlun (KL – Premium Tier) |
| Rated Power | 1250W |
| Form Factor | ATX 3.0 |
| Efficiency | 80 PLUS Gold |
| Efficiency @230V | Up to 93.28% |
| PFC | Active PFC |
| Input Voltage | 100–240V (90–264V Adaptive) |
| Architecture | LLC Pro + DC-DC |
| Capacitors | All-Japanese 105°C Capacitors |
| GPU Support | PCIe 5.0 Ready |
| 12VHPWR | 1x 16-Pin Native (600W) |
| PCIe Connectors | 6x 6+2 Pin |
| CPU Connectors | 2x 4+4 Pin |
| Motherboard Connector | 24 (20+4) Pin |
| SATA Connectors | 12 |
| Molex (D-Type) | 6 |
| +12V Rail | Single Rail (104A) |
| Ripple Control | ~30mV Full Load |
| Cooling | 140mm Dual Ball Bearing Fan |
| Smart Cooling | i-Stop Fan Mode |
| Cable Type | Full Modular |
| Cable Lengths | Up to 700mm (CPU) |
Built for High-End Gaming and Professional Workstations
The Segotep KL-1250G is designed for users who demand uncompromising power delivery. Its massive 1250W continuous output provides more than enough power for flagship gaming PCs equipped with powerful processors like Intel Core i9 and AMD Ryzen 9, paired with high-end graphics cards such as the RTX 5090, RTX 5080, or Radeon RX series GPUs.
Whether you’re gaming in 4K, streaming, editing 8K video, rendering complex 3D scenes, or training AI models, the KL-1250G delivers consistent power with exceptional voltage stability.
Its generous power reserve also leaves plenty of room for future upgrades, making it an ideal investment for enthusiasts planning long-term builds.
80 PLUS Gold Certified for Superior Efficiency
Power efficiency plays a major role in reducing electricity costs and maintaining lower operating temperatures. The Segotep KL-1250G carries the prestigious 80 PLUS Gold Certification, achieving up to 93.28% efficiency at 230V.
Higher efficiency offers numerous benefits:
- Reduced power consumption
- Lower electricity bills
- Less heat generation
- Improved component lifespan
- Quieter cooling operation
- Greater overall system reliability
Less wasted energy means your components receive cleaner power while your PSU stays cooler even under heavy workloads.
ATX 3.0 Ready for Next-Generation Hardware
Modern graphics cards demand rapid power spikes that older power supplies often struggle to handle. The KL-1250G fully complies with the ATX 3.0 specification, allowing it to safely manage high transient power loads produced by next-generation GPUs.
This makes the PSU perfectly suited for modern gaming systems using:
- NVIDIA GeForce RTX 4090
- RTX 4080 SUPER
- RTX 5080
- RTX 5090
- Future PCIe Gen5 graphics cards
ATX 3.0 support ensures enhanced stability during sudden GPU power bursts while improving overall system reliability.
Native PCIe 5.0 600W 12VHPWR Connector
Instead of requiring bulky adapters, the Segotep KL-1250G includes a native 16-pin PCIe 5.0 (12VHPWR) connector capable of delivering up to 600W directly to compatible graphics cards.
Benefits include:
- Cleaner cable management
- Improved power delivery
- Reduced cable clutter
- Better airflow
- Enhanced connector safety
- Direct compatibility with latest GPUs
This modern connector makes the KL-1250G fully prepared for current and future flagship graphics cards.
Premium LLC Pro + DC-DC Power Architecture
Inside the KL-1250G is a premium LLC Pro + DC-DC conversion design, delivering outstanding voltage regulation and stable output across every rail.
Advantages include:
- Faster transient response
- Excellent voltage stability
- Lower switching losses
- Higher overall efficiency
- Reduced ripple
- Improved reliability under varying loads
This advanced architecture is commonly found in flagship enthusiast power supplies.
High-End Japanese 105°C Capacitors
Reliability starts with component quality. That’s why Segotep equips the KL-1250G with 100% Japanese 105°C capacitors, widely recognized as the gold standard for premium power supplies.
These capacitors provide:
- Longer operational lifespan
- Higher heat tolerance
- Better voltage stability
- Lower failure rates
- Superior endurance during continuous heavy workloads
Whether your PC runs for gaming marathons or 24/7 workstation tasks, these premium components ensure dependable performance.
Powerful Single 104A +12V Rail
The KL-1250G features a robust single +12V rail capable of delivering 104A, ensuring stable power distribution to demanding components.
This design is ideal for:
- Multi-core CPUs
- High-end GPUs
- Water cooling systems
- Multiple storage devices
- Professional rendering workstations
- Heavy overclocking
A single-rail configuration simplifies power delivery while maximizing available output.
Why Choose the Segotep KL-1250G 1250W PSU?
The Segotep KL-1250G stands out as a premium power supply built for gamers, creators, and professionals who require exceptional reliability and future-ready performance. Combining ATX 3.0 compliance, 80 PLUS Gold efficiency, fully modular cabling, native PCIe 5.0 support, Japanese capacitors, and intelligent cooling, it offers everything needed for today’s most demanding PC builds while remaining ready for tomorrow’s hardware upgrades.






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