FSP is now listing the FSP500-50FSPT, a 500W, 80+ Platinum FlexATX PSU on their website! That thing has a higher power to volume ratio (>1000W per Liter) and is more efficient than the ST45SF-G, ST60SF-G and the SX500-LG PSUs! Breakdown of the features: Dimensions: 150x81.5x40.5mm Volume: 0.495L (ST45: 0.794) Efficiency: rated 80+ Platinum, no further details available yet Rails: +3.3V: 15A, +5V: 18A, +12V: 2x24A (40A max combined load on +12V) The minimum order quantity is 300 units. Specs can be found here: Drawing (please ignore connectors) Documentation We will be able to choose the connectors and cable lengths ourselves, so ignore those in the drawing. If there is enough interest we will be looking to try and crowdfund this, you can also let FSP or sparkle power know that you want this PSU by emailing them. Original thread was created by iFreilicht on overclock.net FSP just approved for 24pin + 8pin EPS + 2x 6+2pin PCIE config so there should be no problem for all single gpu configs.