01DESKTOPS & ACCESSORIES
Silent power for high performance
The Seasonic VERTEX GX-1200 White sits quietly within the chassis, its matte white casing blending seamlessly into modern aesthetic builds. The flat cabling runs cleanly along the case interior, maintaining visual order without sacrificing function.
This unit handles heavy graphical workloads with ease, suited to enthusiasts building high-end desktops or workstations that demand stable, efficient power from their components.


02DESIGN
Clean lines in white finish
The housing presents a smooth, matte white surface that complements light-themed PC cases. Its compact dimensions of 160 mm length, 150 mm width and 86 mm height allow it to fit standard mid-tower and full-tower chassis without crowding other components.

04COOLING
Quiet operation via large fan
A single 135 mm fan uses a fluid dynamic bearing rated for 50,000 hours at 40 °C. Digital fan control adjusts speed based on load, keeping noise levels low during idle states while maintaining airflow when the system works hard.
05CONNECTIVITY
Modern standards for GPUs
The included 16-pin PCIe Gen 5 cable connects directly to newer graphics cards, eliminating the need for adapters. Fully modular connectors let builders attach only the cables they require, reducing clutter inside the case.


06RELIABILITY
Built for long-term service
Gold-plated terminals handle high current flow for motherboard, CPU and PCIe connections. With an MTBF of 100,000 hours excluding the fan and comprehensive protections like OVP and OCP, the unit is designed to last through multiple hardware generations.
07AT A GLANCE
The key points
- 1200W continuous output with 80 PLUS Gold efficiency
- Fully modular design with flat white cabling
- 135 mm fluid dynamic bearing fan
- Includes 16-pin PCIe Gen 5 (12VHPWR) cable
- 10-year warranty coverage

FEATURES
- Super-High Efficiency, 80 PLUS® Gold Certified
- Fully Modular
- ATX 3.0 and 16-Pin PCIe Gen 5 Cable (12VHPWR)
- Top-Quality 135 mm Fluid Dynamic Bearing Fan
- Premium Hybrid Fan Control
- Tight Voltage Regulation (12 V, 5 V and 3.3 V) [± 3 %]
- Gold Plated High Current Terminal (MB, CPU and PCIe)
SPECIFICATIONS
- Technical Specifications
- 80PLUS ®
- Gold
- Cybenetics Efficiency Level
- TBA
- Cybenetics Noise Level
- TBA
- Form Factor
- Intel ATX 12 V
- Dimensions
- 160 mm (L) x 150 mm (W) x 86 mm (H)
- Fan Information · Fan Size · 135 mm
- Fan Control
- Digital Fan Control
- Fan Bearing
- Fluid Dynamic Bearing
- Life Expectancy
- 50,000 hours at 40 °C, 15 % – 65 % RH
- Cable Information · Modularity · Fully Modular
- Cable type
- Flat white cables
- Electrical Features · Operating Temperature · 0 – 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)
- MTBF @ 25 °C, excl. fan
- 100,000 hours
- AC Input
- Full Range
- Protection
- OPP, OVP, UVP, OCP, OTP, SCP
- Safety and Environmental · Safety and EMC · cTUVus, TUV, CB, CCC, BSMI, EAC, CE
- Environmental Compliance
- Energy Star, RoHS, WEEE, ErP Lot 6, REACH
- Warranty
- 10 Years
- Power Output
- AC Input
- Voltage: 100 V – 240 V
- Current
- 15 – 7.5 A
- Frequency
- 50 Hz – 60 Hz
- DC Output · Rail · +3.3 V · +5 V · +12 V · -12 V · +5 VSB
- Maximum Power · 25 A · 25 A · 100 A · 0.3 A · 3 A
- 125 W · 996 W · 3.6 W · 15 W
- Total continuous power
- 1200 W















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