File System and File Size Limits in SD Cards, Android and Microsoft Windows


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Android File Systems And Large File Size Limits

Android 2.2 and earlier: YAFFS2 file system (supports upto 2GB file size)

Android 2.3 and later: ext4 file system (ext3 supports upto 16GB and ext4 supports upto 16TB file size)

SD Cards File Systems And Maximum File Size

Most SD cards and USB flash drives are formatted using the FAT32 file system which can’t store files bigger than 4GB. To handle larger file sizes, you can use a Windows program HJ-split (http://www.hjsplit.org) to split a large file into 2GB Zim files each and name them as XYZ.zimaa, XYZ.zimab, XYZ.zimac, etc.

 File System FAT 16 (FAT) FAT 32 exFAT (FAT 64)
Maximum file size 2GB 4GB 127 PB (petabytes where 1PB=1,000TB)
SD Card type SD (Max Capacity 2GB) SDHC (Max Capacity 32GB)

microSDHC (Max Capacity 32GB)

SDXC (Max Capacity 2TB)

microSDXC (Max Capacity 2TB)

PC Compatible OS Windows ME

Windows 2000

Windows XP

Windows 7

Windows 8.1

Windows 10

Windows ME

Windows 2000

Windows XP

Windows 7

Windows 8.1

Windows 10

Windows XP. Update to SP2 or later, then apply Microsoft update (KB955704). Use with SDXC/microSDXC compatible card reader.

Windows Vista

Windows 7

Windows 8.1

Windows 10

Mac Compatible OS  Mac OS 8/9/X  Mac OS 8/9/X Mac OS X 10.6.5 and above

Large File Size Limit in Microsoft Windows

Windows 95, 98, ME = 4 GB file size limit.
Windows XP, 7 = 16 TB filesize limit.
Windows 8, Server 2012 = 256 TB file size limit.

File size limits in File System of Microsoft Windows

Note: File System Limit is always larger than File Size Limit.

FAT16 and FAT 32 file size limit = 4 GB (1 Gigabyte = 1,000 Megabytes MB)
NTFS file size limit = 16 TB (1 Terabyte = 1,000 Gigabytes GB)
exFAT file size limit = 127 Petabytes (1 Petabyte PB = 1,000 Terabytes TB)

Type of SD Card, Maximum Capacity, File System, Compatibility
SD, 2GB, FAT32, SD
SDHC, 32GB, FAT32, SD SDHC
SDXC, 2TB, exFAT, SD SDHC SDXC

Before installing operating system, Hard disk drives are formatted using either of these file systems;

FAT (File Allocation Table) Where data is stored in chunks of 16 bits.
FAT32 (File Alloocation Table 32-bit) Where data is stored in chunks of 32 bits.
NTFS (New Technology File System) Where data is stored in chunks of 64 bits.

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