Asus' ROG Loki SFX-L 1,200W PSU has 16-pin PCIe 5.0 auxiliary power connector.
Asus Unveils Tiny 1200 Watt Power Supply with 16-pin PCIe 5.0 Power Connector : Read more
Asus Unveils Tiny 1200 Watt Power Supply with 16-pin PCIe 5.0 Power Connector : Read more