3 Storage Limits to Know About the ASUS PN50

One M.2 NVMe slot The PN50 has a single M.2 slot for an NVMe drive. You cannot add a second M.2 drive.

One 2.5-inch SATA bay There is one bay for a 2.5-inch SATA drive. No additional SATA ports are available.

No extra expansion slots The only other M.2 slot is for a wireless card, typically pre-installed. Do not plan on adding more storage beyond the two built-in options.