A practical guide to choosing and using it
Build a practical four-device workspace
The hub lets a computer’s USB-A port serve several compatible peripherals at once. A keyboard and mouse can remain connected while another port is used for a flash drive, card reader or other accessory. Arrange the hub where plugs are easy to reach, particularly if storage devices are connected frequently. The short attached lead helps keep it beside the computer rather than across the desk.
Understand how the upstream connection is shared
The four USB-A sockets connect through one USB 3.0 link to the computer. This is useful for expanding access, but it does not give each connected device a separate full-speed connection to the host. Simultaneous transfers share the available link. Storage performance also depends on the drives and the computer, so the maximum signalling rate is not a promised file-copy result.
Use auxiliary power for the right purpose
The USB-C socket is a power input for the hub and connected peripherals. It is not an extra data port, a USB-C host connection or a laptop charging input. When a supported peripheral needs more power than the host connection can comfortably provide, use a suitable 5 V supply as required by the setup. Additional power does not increase the USB link speed.
Connect and disconnect storage carefully
Start with the hub connected directly to a suitable computer USB-A port. Add peripherals and check that they appear as expected. If a storage device disconnects or does not start, investigate its power requirements and test a direct connection. Before unplugging a drive, finish transfers and eject it in the operating system so pending writes can complete.
Frequently asked questions
What does the UGREEN 20805 add to my computer?
It expands one USB-A host connection into four USB-A data ports for compatible peripherals. Typical uses include a keyboard, mouse, flash drive and card reader, depending on the computer and device requirements. It is a compact data hub rather than a full docking station with display or network outputs. Check the actual ports and functions needed for your workspace.
Can I use all four USB-A ports at the same time?
Yes, compatible devices can use the four ports together, subject to the available power and shared host connection. Low-bandwidth input devices and storage devices have different demands. If several drives are active at once, their transfers share the upstream link. Check device power requirements and use suitable auxiliary power when the particular setup needs it.
What is the USB-C socket used for?
It accepts an additional 5 V power supply for the hub. It does not carry data to the computer or act as a fifth peripheral port. Continue using the attached USB-A plug for the host connection and the four USB-A sockets for data devices. The power supply and its cable should be selected for the hub’s stated input requirements.
Will the USB-C input charge my laptop?
No. This model does not provide USB-C Power Delivery passthrough to charge a laptop. Its USB-C connection supplies auxiliary power to the hub for the connected peripherals. Keep the laptop connected to its own suitable charger when charging is required. A hub with a USB-C power socket should not automatically be treated as a laptop charging dock.
Does 5 Gbps mean that every drive transfers at that speed?
No. The figure is the maximum USB 3.0 signalling rate for the connection. Real transfers depend on the computer, storage device, file sizes and other hub activity, and the four ports share the upstream connection. A USB 2.0 device remains limited by its own standard. Connect to a suitable USB 3.0 host port for the higher supported link rate.
Can older USB 2.0 devices connect?
Yes, compatible USB 2.0 peripherals can connect to the USB-A data ports and operate at their supported speed. Using the hub does not upgrade their internal USB controller or storage performance. Check operating-system support for the device itself, especially for older printers or specialist accessories that may need their own drivers or software.
Can I connect it directly to a computer with only USB-C ports?
The attached host plug is USB-A, so it does not fit directly into a USB-C-only computer. That setup requires a suitable separate host adapter, or you can choose a hub designed with a USB-C host plug. The USB-C power input on this model cannot replace the attached USB-A data connection.
Can I use the four ports as a phone fast-charging station?
The ports are intended primarily for USB data peripherals, not as a dedicated multi-port fast charger. A connected device may draw power according to the available USB connection, but phone fast-charging features should not be assumed. If charging several phones is the main task, choose a charger designed and rated for that purpose.
What should I check if an external drive disconnects?
Check the drive’s power requirements, the hub’s host connection and any auxiliary supply used. Try the drive directly on the computer to narrow down whether the issue is the drive, its cable or the hub arrangement. Disconnect unneeded peripherals while troubleshooting. Also make sure the drive and operating system support the intended connection and file system.
Do I need software to use the hub?
The hub works through the computer’s supported USB system, while connected devices may have their own drivers or setup requirements. Start with a direct host connection, add one peripheral and check detection before building the full workspace. For storage, eject devices before unplugging. For a printer or another specialist accessory, follow that device’s own installation instructions.
