The Prime Ultra Titanium Series 850W 80 Plus Titanium Modular ATX Power Supply from Seasonic is designed to provide high-end systems with clean, continuous power. The fully modular design allows you to connect the cables you need and store the rest for less cable clutter and improvedairflow. It's built with a 135mm cooling fan and utilizes Seasonic's Hybrid Mode to keep it operating quietly and efficiently. This power supply is bothSLI and Crossfire ready and includes plenty of cables and connectors for storage drives and peripherals.

Included with the Prime Ultra series power supplies are a PSU tester and a SATA 3.3 adapter. The PSU tester lets you quickly and easily jump start the power supply, and the SATA adapter supports the "Power Disable" (PWDIS) feature on newer, high capacity hard drives.

The Prime Ultra Titanium series has an 80 Plus Titanium rating with a 94% efficiency rating at 50% system load.

Micro Tolerance Load Regulation keeps output voltage within a tight range of under 0.5% load regulation for stable power.

Seasonic's Hybrid Fan Control provides you with silent and efficient cooling that doesn't kick in until it reaches 40% load.

Instead of cables, the back panel and PCB are connected by a copper plate to reduce production errors and improve output power quality.