I use storage spaces for my hdds and ssds, this might be the cause of the 4Mb sectors.
PS> fsutil fsinfo sectorInfo S:
LogicalBytesPerSector : 4096
PhysicalBytesPerSectorForAtomicity : 4096
PhysicalBytesPerSectorForPerformance : 4096
FileSystemEffectivePhysicalBytesPerSectorForAtomicity : 4096
Device Alignment : Aligned (0x000)
Partition alignment on device : Aligned (0x000)
No Seek Penalty
Trim Supported
Not DAX capable
Is Thinly-Provisioned, SlabSize : 268.435.456 bytes (256,0 MB)
PS> fsutil fsinfo sectorInfo H:
LogicalBytesPerSector : 4096
PhysicalBytesPerSectorForAtomicity : 4096
PhysicalBytesPerSectorForPerformance : 4096
FileSystemEffectivePhysicalBytesPerSectorForAtomicity : 4096
Device Alignment : Aligned (0x000)
Partition alignment on device : Aligned (0x000)
Performs Normal Seeks
Trim Supported
Not DAX capable
Is Thinly-Provisioned, SlabSize : 268.435.456 bytes (256,0 MB)