This 3450W Power Supply is a Fire Hazard!

This video examines a so called 3450W power supply that Linus Tech Tips bought from Banggood and treated as a serious fire hazard. The hosts begin by poking fun at the idea of an ultra high wattage unit that uses two supplies without a proper single chassis and power input, setting the stage for a hands on teardown. They open the unit, identifying missing components and questionable construction, including a poorly implemented common mode choke and a switched wiring approach that does not actually disconnect power. The team then power up a test setup with multiple RTX 3080 GPUs to push the unit beyond normal operation, documenting a growing list of issues as they bridge connections and improvise measurement gear. As the test escalates to a Threadripper Pro motherboard and a render box, the crew weighs real world risks, discusses isolation and potential high voltage feedback, and ultimately questions the safety and legitimacy of the device. Interwoven with the hardware drama are light hearted sponsor moments and a call to action for KiwiCo crates, used to pivot from danger to family friendly education, while reinforcing the video’s broader theme of skepticism toward off brand power supplies. The conclusion anchors the takeaway: do not attempt to repurpose or test wildly underpowered or poorly built PSUs, and rely on properly certified, quality hardware for demanding systems. Viewers are left with a memorable image of a chaotic but educational teardown that blends humor with a stern warning about electrical safety. The video ends with a lighthearted tease about future testing and the KiwiCo sponsorship, reinforcing the channel’s persona of hands on experimentations tempered by safety considerations and home lab humor.

Topics · hardware · safety · electronics · computing