My primary concern is that those small form factor storage media might not be so reliable for backup. I'd be okay with mSATA , SATA or NVMe form factor from a r

My primary concern is that those small form factor storage media might not be so reliable for backup. I'd be okay with mSATA , SATA or NVMe form factor from a reputable manufacturer. I always use something one generation behind or been out for atleast an year. Let others test the new NAND and firmware.