Booting from an NVME SSD on an older PC using Clover
ASUS Z87-Pro Motherboard Review | Linuxlookup
Amazon.com: GLOTRENDS Dual M.2 X4 PCIe Adapter for One M.2 PCIe SSD and One M.2 SATA SSD, Support OS Booting from M.2 PCIe SSD or M.2 SATA SSD, Including 2 x M.2