Hello!
I use a Samsung 990 Pro 4TB with heatsink as external drive with a rack RaidSonic ICY BOX IB-1916M-C32 on my laptop Apple Macbook Pro 2019 A2141 .
I have 2 operating sistems windows 11 and Macox latest version.
I have 4 partition on my external SSD Samsung 990 PRO 4TB and only one use with all my data.
I have it from 6 months and use it with Windows and Macos.
Now it show only 1gb unknown and not initialised on windows an 1.08Gb in Apple initialised and 0 Gb in samsung magician.
