FRITZ!Box 7581 Service - Knowledge Base
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 defined in the USB specifications.
1 Enabling USB 3.0 mode
The following step is only necessary if you are using a USB 3.0 storage device:
- Click "Home Network" in the FRITZ!Box user interface.
- Click "USB Devices" in the "Home Network" menu.
- Click on the "USB Settings" tab.
- Enable the option "Power Mode USB 3.0" for the USB port you are using.
- Click "Apply" to save the settings.
Important:If the FRITZ!Box no longer detects the USB storage device when "Power Mode USB 3.0" is enabled, then your USB storage device does not correctly identify itself as a USB 3.0 device. In this case, re-enable the "Green Mode USB 2.0" option.
2 Using a USB 3.0 cable
USB 3.0 storage devices are only integrated as USB 3.0 devices if they are connected to the FRITZ!Box by means of a USB 3.0 cable:
- Use a USB 3.0 ("super speed") cable to connect the USB storage device to the FRITZ!Box.
3 Throughput lower due to functional principle
In the case of integrated systems such as the FRITZ!Box, the highest possible throughput when accessing a USB storage device is lower than that of Windows computers, for example. This is due to its architecture and is influenced by
- software or communications 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 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.
- the use of encryption techniques (FTPS, FTP over SSL/TLS).
- transmission medium (wireless LAN/LAN) being used.
- FRITZ!Box functions currently in use and the FRITZ!OS being used.
Depending on these factors, throughput rates of up to 80 MB/s (FAT32, FTP) and 25 MB/s (NTFS, SMB) are possible. However, the write speed is often significantly slower than the read speed.
If possible, we will implement optimizations in future FRITZ!OS versions that increase the throughput.