Is it useful to plug a USB flash drive into a USB HUB?

A USB HUB can accommodate USB drives, but its performance might not be entirely satisfactory.

Can insert USB drives:

The original design intention of USB HUB is to expand the number of USB interfaces. Therefore, it can definitely be inserted with USB devices such as U disks.

Ineffective effect:

Insufficient power supply: Especially for those HUBs without external power supply, since the power supply capacity of USB interfaces is limited, when multiple U disks or large-capacity storage devices are inserted, there may be a situation of insufficient power supply, causing the U disks to fail to work properly, such as being unable to be recognized or opened.
Limited transmission speed: The transmission speed of USB HUB will be affected because multiple devices share the same communication channel. It's like connecting multiple faucets to a small pipe at the same time, and the flow of water from each faucet will decrease.

Improvement methods:

Use HUB with independent power supply: This type of HUB has its own power supply and processing control chip, which can provide a more stable power supply and higher performance, but the price is relatively higher.
Limit the number of connected devices: Try to reduce the number of devices connected to the HUB at the same time, especially large-capacity storage devices, to reduce the burden on the HUB.

Applicable scenarios:

The USB HUB is more suitable for connecting devices that do not require high power stability or have low communication volume, such as keyboards and mice, which are input devices.

In conclusion, although a USB HUB can accommodate USB drives, considering the possible issues such as insufficient power supply and limited transmission speed, it is recommended to choose the appropriate HUB and device connection method based on specific needs in actual use.