Corsair power supplies are very popular as that are well made and can last for over 10 years. The studio first procured the TX850V2 which was adequate to handle dual graphics cards such as the GTX 260 SLI. Since then Corsair has been the PSU of choice in the studio as they have demonstrated capability.
Today the HX, HXi, RM (2019) and AX, AXi are the contemporary models. Some older models are still widely available and Corsair still provides full warranty on all of their power supplies.