Réponse à : « Does it support PCIe 4.0? »I just installed a WD SN850 nvme m2 SSD on my iMac A2116. Although the hard drive speed is super fast now but still lacks of full speed which SN850 offers 7000 mb/s but i can get 3500 out of it on my iMac. I guess the problem is with the compatibility of the main board (generation of the PCIe) which could be a bottleneck for this high-end SSD. Anybody can add a comment on it ? It is more likely to be Gen3.