NanoPi R5C - Rockchip RK3568B2 - 2 PCIe 2.5Gbps

snapshots, right now (support merged 3 weeks ago).
The next major release, as in 24.xy.0 to be released (hopefully-) sometime in mid- to end 2024 will support it as well; the current 23.05.x stable release series will not.