In The Box
Once we get through the factory shrink wrap and open the box, we are left with the primary unit, a small instruction manual, some mounting screws and a fist full of cabling. There is even a Seasonic case badge for those who want to let the world know what is inside their custom rig.
The M12II features the ability to sustain a steady 500 watts of power flow. Both the 3.3v and 5v rails are rated at 24A power draw. This model has a dual 12v rail system with one rated at 17A and the other rated at 18A draw. While not the highest rated model we've had in our labs, there is still ample power for a vast majority of the machines built today. The power system is strong enough on both the 5v and 12v rails to be compatible with newer Intel based rigs as well as older Athlon systems.
Like many of the more modern power supplies available, cooling is a primary feature. To aid in this function the M12II has minimized the exterior panel to leave room for a mesh covering to allow for maximum airflow. This helps in both maximizing airflow and also requiring less airflow to do the job. What this means to you is a quieter power supply.
To handle that need for airflow is a 120mm fan mounted in the bottom of the unit. Unlike others that have the larger fans, this 120mm design lets you have a PSU that is not oversized. This can be huge for those utilizing smaller enclosures. Of course, it still maintains the industry standard mounting so those with larger cases will also have no problems at all.
As noted earlier, this product is a modular variety giving the user the convenience of using only the cabling necessary to do the job. This not only gives a cleaner look to the inside of your case, it also make airflow a much easier task since those extra cables aren't cluttering your internals.
All cable assemblies included with the M12II are mesh wrapped to keep that beast called "Cable Management" at bay. There is also a decent selection of cable harnesses that come with this power supply. Besides the hard-wired 20+4 pin primary and both 4-pin and 8-pin auxiliary connectors, you also get eight Molex, six SATA and two PCI-E, one of which can be used as either a 6-pin or 8-pin PCI-E connector. There are no FDD connectors in the standard cabling harnesses, but there is an included Molex adapter with a pair of them for those who still require this capability.
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