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USB storage access is slow

Data transmission between a computer and a USB hard drive or USB memory stick connected to the FRITZ!Box is slower than stipulated in the USB specifications.

Throughput lower due to functional principle

The maximum throughput when accessing a USB storage device is lower with integrated systems like the FRITZ!Box due to the architecture than with Windows computers, for example. This is influenced by the

  • software or communication protocols (SMB, FTP, USB remote connection) being used.
  • architecture of and file system on the USB storage device (NTFS, FAT/FAT32, ext2/ext3/ext4).

    Note:NTFS is a file system from Microsoft that was developed specifically for use with Windows operating systems. The implementation of NTFS support by the Linux-based FRITZ!OS is technically sophisticated, which means that access via NTFS is slower than with other file systems.

  • use of encryption techniques (FTPS, FTP over SSL/TLS).
  • transmission medium (Wi-Fi, LAN) used.
  • FRITZ!Box functions currently in use and the FRITZ!OS used.

Depending on these factors, throughput rates of up to 50 MB/s (400 Mbit/s) are normally possible. However, the write speed is normally significantly slower than the read speed.

If possible, we will include optimizations in future FRITZ!OS versions to increase the throughput.