https://www.techpowerup.com/298669/seasonic-ps-vertex-line-of-atx-3-0-pcie-gen-5-psus-leaked
 
Here are some of the first pictures of the Seasonic PS Vertex series of high-Wattage PSUs that meet ATX 3.0 standards, and feature a PCIe Gen 5-compliant ATX12HPWR 12+4 pin connector capable of delivering 600 W, with +100% excursions lasting 100 µs. There are four models in the series, the PS Vertex 1000G, PS Vertex 1000P, PS Vertex 1200G, and PS Vertex 1200P. The 1000G/1200G meet 80 Plus Gold efficiency, while the 1000P/1200P meet 80 Plus Platinum. Both offer fully modular cabling, including a 12+4 pin ATXHPWR connector, a multitude of conventional 6+2 pin PCIe power connectors, SATA power connectors, at least two 8-pin EPS, and more. Early listing see the PS Vertex 1200P at USD $319, the PS Vertex 1200G at $281, the PS Vertex 1000P at $271, and the PS Vertex 1000G at $243.
 
Hopefully Seasonic can get these out to market quickly.