FRITZ!Box 3390 Service - Knowledge Base

FRITZ!Box 3390 Service

USB storage access is slow

When transferring data between a USB storage device connected to the FRITZ!Box and a network device (for example a computer) in the home network, you achieve slower speeds than those defined in the USB 2.0 specifications.

1 Throughput lower due to functional principle

The highest possible throughput when accessing a USB storage device is influenced by the

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

    Note:NTFS is a file system from Microsoft that was specially developed 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.

  • transfer method (wireless LAN/LAN) being used.
  • FRITZ!Box functions currently in use and the FRITZ!OS being used.

Depending on these factors, throughput rates between 6 MB/s (48 Mbit/s) and 20 MB/s (160 Mbit/s) are possible.

If possible, we shall implement optimizations to increase the throughput rates in future FRITZ!OS versions. However, even in the future it will not be possible to achieve the transfer rates possible with PC-based Windows installations on an embedded system such as the FRITZ!Box, due to its architecture.