Sorry everyone, this project is stalled indefinitely. The interest for a PSU like this is too low to create a custom unit at this time. However, you can get a stock FSP500-50FSPT from Amazon.us. Original Post: Introduction: The FSP500-50FSPT is a short FlexATX PSU rated at 500W power output and 80+ Platinum efficiency, made by FSP. As is typical with these PSUs, it is not available in retail stores and doesn't have any connectors for graphics cards. I want to change that, so we need to plan out a custom version of this PSU with FSP or one of their distributors, and then either convince a major retailer to stock that unit or make it available via crowdfunding. Specification: Dimensions: 150x81.5x40.5mm Volume: 0.495L Power Rating: 500W Power Density: 1010.1 Watt per Liter Efficiency: rated 80+ Platinum, no further details available yet Rails: +3.3V: 15A, +5V: 18A, +12V: 2x24A Specification of the stock unit: Specification Sheet Drawing (of customised unit) Documentation The unit has a PMBus connection, which can be interesting for very specific projects and server use. It is missing the -12V rail, which could be a major problem. Some motherboards check whether -12V is present and refuse to POST without it. Details: To convince both FSP and a retailer that this PSU has potential in the consumer market, we need to compile a list of people that are interested in buying one or more units of it. For a stock or slightly customised version, the MOQ (minimal order quantity) is 300. This includes a different colour for the case or different connectors and cable lengths. For more complicated customisations that require some design work (modularity, adding a -12V rail), the MOQ could be much higher. To express your interest in this unit, please answer this poll: FSP500-50FSPT Wishlist If there are other forums where this could be of interest, please PM me and tell me about them! I'd like to get a good amount of exposure on this thing!