One or Two SSD on 27‑inch iMac with Retina 5K display (mid 2017)? I understand that such iMac has two different ports for two different disks inside (eg., one SSD or une Fusion drive from Apple). Questions: 1. Is it possible to install this disk inside to boot such iMac? Samsung 960 PRO Series - 2TB PCIe NVMe - M.2 Internal SSD (MZ-V6P2T0BW) Sequential R/W (read/write) speeds up to 3,500/2,100 MB/s and random R/W speeds up to 440/360K IOPS, respectively. http://www.samsung.com/semiconductor/minisite/ssd/product/consumer/960pro.html https://www.amazon.com/Samsung-960-PRO-Internal-MZ-V6P512BW/dp/B01LY3Y9PH 2. Is is possible to have two SSD at the same time inside such iMac? For instance, the one SSD from Apple (or the one above, if possible) and other like this (now 2TB, soon 4TB)? Samsung 850 PRO - 2TB - 2.5-Inch SATA III Internal SSD (MZ-7KE2T0BW) Sequential Read/Write Performance: Up to 550MB/s and 520MB/s, respectively. Random Read/Write IOPS Performance: Up to 100K and 90K, respectively. http://www.samsung.com/semiconductor/minisite/ssd/product/consumer/850pro.html https://www.amazon.com/Samsung-850-PRO-2-5-Inch-MZ-7KE2T0BW/dp/B010QD6RX4 Thanks!