Introduction
SeaSonic Electronics introduces the new M12II series of modular cable management power supplies to broaden the range of high efficiency and high quality power supplies in the company’s product lineup.  The M12II, available in 430 and 500 watts, offers buyers with a mid range power output solution with cable management, to meet their exact system needs, cable management is now made easier than ever.

Seasonic M12ll series power supplies support the latest Intel and AMD processors and are compatible with older versions of CPUs.  Today, high-end graphic cards are ever more popular, Seasonic M12ll series power supplies is delivered with two PCI-E connectors to match any NVIDIA or ATI video cards, perfect for personal desktop (Vista) or high-end gaming applications.  Seasonic M12ll series is 80Plus certified with efficiency greater than 80% at 20%, 50% and 100% system loads and has a power factor correction of 0.99pf.  Additionally, these power supplies are double forward converter circuit design populated with high durability industrial grade 105’C capacitors to further enhance performance, efficiency and reliability of the M12II series


The Seasonic M12ll series provides a variety of DC cables to meet different application needs and each 4pin peripheral connector comes with user-friendly Easy Swap design.  As well, the cables are sleeved for aesthetic reasons and more importantly, for protection against damage and provides a “cleaner” set up to maximize system airflow for proper total system cooling.  Moreover the M12ll series incorporates Seasonic’s award winning Smart & Silent Fan Control [S2FC], one of the best temperature/fan control circuit available on the market today.


The Seasonic M12ll series power supplies conform to RoHS, WEEE, EMC and major safety standards.  The superior performance and high quality design of the Seasonic M12ll series makes it the new standard for mid range power output cable management power supplies in the industry today.

Special Features

Sufficient +12V Support
Enhanced +12V current capability broadens utilization possibilities.

Super High Efficiency [up to 85%]
Optimal solution for low energy consumption, noise & heat.

Active Power Factor Correction [99% PF]
Reduces line loss & power distortion.

High Reliable Aluminum Electrolytic Capacitors
Top quality components increase product life & reliability

Detachable Modular Cable
Use precisely the cables you need, enhance system airflow and minimize clutter.

Double Forward Converter Circuit Design
Advanced topology for the highest efficiency.

Double 12cm Ball Bearing Cooling Fan
Increases airflow & lifetime and reduces rotation speed ad noise.

Smart & Silent Fan Control [ S²FC]
Smart thermal control to balance noise & cooling.

Soft-Mounting Rubber Cushions
Reduces fan rotation & vibration noise.

Ultra Ventilation [Honey Comb Structure]
Minimized airflow resistance for maximum cooling.

All in One DC Cabling Design
Supports PC, IPC, workstation, server, & dual CPU systems.

Universal Video Card Support
Support new PCI-E video card technologies

Universal AC Input [Full Range]
Plug & run safely anywhere in the world.

Patented Easy Swap Connector
Unplug the connectors easily & quickly.

5 Year Warranty
Our Commitments to superior quality.

Product Information

1. AC input & DC output voltages ( 100~240V, 50/60Hz )

2. Wire Configuration

3. Total Protection
Over Voltage / Over Power / Short Circuit Protection
Total protection for your power supply, your system and yourself.

4. Operating Environment
Operating temperature: 0 to 50°C. Relative Humidity: 20% to 80%.
(The rated power will reduce from 100% to 80% from 40°C to 50°C)
Relative Humidity: 20% to 80%.