Seasonic PRIME 1200W Platinum Power Supply Review With BIG Power comes BIG Responsibility! How does Seasonic go about handling all that power with its new PRIME 1200W PLATINUM PSU? Given Seasonic's excellent track record when it comes to high-end PSUs, we have high-end expectations. Once you see the incredible price you will almost have to buy one. Really. If you like our content, please support HardOCP on Patreon.