Corsair's SF series of PSUs has been long present as part of the company's offerings, designed to the satisfy small form factor crowd with its SFX size. Today, Corsair has announced that they will be recalling some units and replace them free of charge, including free shipping. Corsair says that "We have recently identified higher-than-normal RMA rates among our SF family of small-form-factor PSUs. Following a thorough investigation, we have found a potential issue that can manifest when the PSU is exposed to a combination of both high temperatures, and high humidity. This regrettably can cause the PSU to fail. This issue potentially affects units in lot codes 194448xx to 201148xx, manufactured between October 2019 and March 2020."

The problem is located in the AC conversion part of the PSU, not the DC one which interacts with PC components, so Corsairs points out that all of the components are safe even if PSU fails. To get a replacement PSU, Corsair offers affected customers to submit their tickets here, with the title "SF Series voluntary product replacement", so they can easily identify customers and give them quicker replacement units.