Seasonic X-Series 650W KM3 Power Supply Review

Rating: 9.5.

Seasonic really need no introduction, they have been releasing multiple series of class leading power supplies in 2012. They recently launched the latest X-Series KM3 range, superseding the award winning KM2 units which we reviewed last year. Today we are looking at the X-Series KM3 650W power supply, a very popular wattage capacity with the enthusiast audience.

The X-Series 650W KM3 is not just a simple refresh however as the internal design has been changed and we will take a look at this later in the review. The KM2 was already a very impressive unit, so we are interested to see just how far further the company can push the new design.

They have three models already in the KM3 range, a 650W, 750W and 850W model all with a single +12V rail, fan controller and new modular cabling.

Special Features –

• 80PLUS® Gold Certified Super High Efficiency
• Full Modular Cabling Design
• Patented DC Connector Module with Integrated VRM [Voltage Regulator Module]
• DC to DC Converter Design
• Seasonic Hybrid Silent Fan Control
• Sanyo Denki San Ace Silent Fan
• Conductive Polymer Aluminum Solid Capacitors
• Highly Reliable 105℃ Japanese Brand Capacitors
• Tight Voltage Regulation [±1%]
• Active Power Factor Correction [99% PF Typical]
• High +12V Output
• High Current Gold Plated Terminals
• Dual Sided PCB Layout
• Ultra Ventilation [Honeycomb Structure]
• Multi-GPU Technologies Supported
• All-in-One DC Cabling Design
• Easy Swap Connector
• Universal AC Input [Full Range]
• 7 Years Warranty

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