When running in PCIe mode, are the two m.2 slots on a Z270 chipset and H270 chipset equal in performance?
Forget about heat issues and SATA issues.
The ASUS H270 user guide says the m.2_1 runs at x32 Gb/s sec, while the m.2_2 slot only runs at 16GHz.
The Z270 guide does not mention anything...