UGREEN 4-Port USB 3.0 Hub with 1m Cable (20291)
Overview
A compact USB-A host hub that expands one computer port into four USB-A 3.0 downstream ports for storage and everyday peripherals. Bandwidth and available bus power are shared.
What it does well.
Key features
Quick reference
length. 1m attached host cable
Data capability. Up to 5Gbps USB 3.0 signalling shared across active devices; backward-compatible with USB 2.0/1.1
Host/source side. Attached 1m USB-A 3.0 male host cable
Device/downstream side. Four USB-A 3.0 female downstream peripheral ports
How it fits into your setup
Connections and roles
Host or source. Attached 1m USB-A 3.0 male host cable
Peripheral or downstream side. Four USB-A 3.0 female downstream peripheral ports
Connection role. One upstream computer link shared by four downstream devices
Power expectation. Bus-powered for ordinary use; official material shows an auxiliary 5V/2A input for stability with higher-demand devices
Four ports share one 5Gbps upstream link and one power budget
Real-world performance
The four sockets do not each receive an independent 5Gbps channel. Simultaneous transfers share the host connection and may slow one another.
A standard USB 3.0 laptop port can provide a limited bus-power budget. The auxiliary 5V/2A input can support hub stability but does not turn the ports into a charging station.
The LED shows connection/power status. Final behaviour depends on host controller, operating system, hub power and each peripheral.
Construction and everyday durability
Materials and handling
Construction detail 1. Compact four-port hub enclosure
Construction detail 2. Attached flexible 1m USB-A host lead
Construction detail 3. Connection-status LED
Construction detail 4. Auxiliary 5V/2A power input shown in official material
Durability claims describe controlled product testing, not immunity from crushing, repeated sharp bends, liquid, corrosion or worn sockets. Grip the connector housing rather than pulling the cable.
Use scenarios
Where it is useful
Desktop peripheral cluster. Keep keyboard, mouse, printer and flash drive within reach from one computer port.
Storage access. Connect one supported external drive or card reader while respecting the shared power budget.
Console accessories. Use with compatible console USB peripherals where the console supports standard USB hubs.
Reach awkward ports. Bring rear desktop USB connections forward using the 1m attached lead.
Compatible devices and systems
Compatibility planning
Compatibility examples are categories, not blanket certification for every model or revision. Confirm the port and required function in the device manual.
Compatibility check 1. Windows, macOS, Linux and ChromeOS computers with USB-A host data
Compatibility check 2. USB flash drives, card readers, keyboards, mice, printers and controllers
Compatibility check 3. Selected self-powered external drives and USB audio accessories
Compatibility check 4. USB 2.0/1.1 peripherals at their supported lower rates
Check before buying
Pre-purchase checklist
Connector shape. Attached 1m USB-A 3.0 male host cable; Four USB-A 3.0 female downstream peripheral ports.
Port roles. One upstream computer link shared by four downstream devices
Required performance. Up to 5Gbps USB 3.0 signalling shared across active devices; backward-compatible with USB 2.0/1.1
Power and video. Bus-powered for ordinary use; official material shows an auxiliary 5V/2A input for stability with higher-demand devices. No HDMI, DisplayPort or USB graphics function
- Expands one USB-A host port into four USB-A data ports
- Supports shared USB 3.0 transfer up to 5Gbps
- Provides an LED status indication
- Accepts auxiliary 5V/2A power for hub stability where needed
- Not a four-port fast charger
- Not a USB-C hub and does not fit a USB-C-only host without a suitable data adapter
- Not an Ethernet, HDMI, SD-card or audio dock
- Not guaranteed with every 2.4GHz wireless receiver, MIDI device or high-power peripheral
Setup and usability guidance
Installation workflow
The cable or hub normally has no standalone application. The connected device can still require its manufacturer driver, firmware, print queue, audio/MIDI setting, storage permission or USB mode. A physical connection cannot add a missing operating-system feature.
When troubleshooting, test one variable at a time: a direct host port, a known-good peripheral, the original device cable, an updated driver and a simple workload. This distinguishes cable, power, port and software faults.
- Connect the attached USB-A cable directly to the computer
- Connect low-power peripherals first and confirm each appears
- For demanding storage, use the auxiliary power arrangement specified in the manual
- Avoid crowding large plugs that place sideways force on adjacent sockets
- Eject storage safely before disconnecting the hub
What to do
Good practice
Verify first. Check SKU, connector, length, role, data generation and power expectation before ordering.
Use a direct path. Remove unnecessary adapters and hubs while installing or diagnosing the connection.
Support the plugs. Leave a gentle service loop and prevent cable weight from pulling on small sockets.
Test before routing. Complete repeated real tasks before hiding the cable behind furniture or inside management channels.
Do not force a near-match. Stop when plug shape or insertion resistance is wrong. Similar USB connectors are not interchangeable.
Do not exceed the stated role. No HDMI, DisplayPort or USB graphics function. Bus-powered for ordinary use; official material shows an auxiliary 5V/2A input for stability with higher-demand devices.
Do not stack unknown links. Unsupported extensions and adapters reduce signal and power margin.
Do not ignore heat or damage. Unplug equipment that is wet, frayed, loose, crushed or unusually hot.
Warnings and limitations
Read before use
Performance reminder: advertised USB rates are theoretical ceilings. Real results depend on the slowest compatible component and on shared bandwidth, software, workload and power conditions.
- Do not expect the hub to charge an iPad, tablet or several phones
- 2.4GHz wireless receivers and some MIDI/USB 3.0 devices can experience interference or compatibility limits
- The auxiliary input supports the hub; it does not increase the 5Gbps data ceiling
- Do not exceed the power-source rating or use an unknown damaged adapter
- For unstable hard drives, test direct to the computer and use the drive’s own power where provided
Troubleshooting by symptom
Diagnose methodically
Not detected. Confirm the connector and port role; test direct without a hub and restart the peripheral.
Connects then drops. Inspect for loose ports or cable strain, simplify the link and reduce bus-power demand.
Transfer is slow. Verify every endpoint supports the advertised USB generation and test with one large file.
Printing or scanning fails. Install the manufacturer driver, select the correct device and clear stalled print/scan jobs.
Works on one computer only. Compare drivers, USB power settings, security permissions and port capability.
Charging is weak or absent. Review the stated power role; this product may be data-focused and cannot add a charging protocol.
Video is absent. Use a dedicated video-capable solution unless this product explicitly supports USB-C display mode.
At a glance.
- Brand / SKU
- UGREEN 20291
- Model
- UGREEN 20291
- Product type
- 4-port USB 3.0 data hub
- Length
- 1m attached host cable
- Host/source side
- Attached 1m USB-A 3.0 male host cable
- Device/downstream side
- Four USB-A 3.0 female downstream peripheral ports
- Connection role
- One upstream computer link shared by four downstream devices
- Data capability
- Up to 5Gbps USB 3.0 signalling shared across active devices; backward-compatible with USB 2.0/1.1
- Power/charging role
- Bus-powered for ordinary use; official material shows an auxiliary 5V/2A input for stability with higher-demand devices
- Native video
- No HDMI, DisplayPort or USB graphics function
- Construction
- Compact four-port hub enclosure; Attached flexible 1m USB-A host lead; Connection-status LED; Auxiliary 5V/2A power input shown in official material
- Cable-specific driver
- Not normally required
- Recommended topology
- One direct supported link; avoid unsupported chains
model reference
Inside the box
1 × UGREEN 20291 four-port USB 3.0 hub with attached 1m cable; 1 × user manual. Auxiliary power adapter/cable is not included.
Computers, chargers, peripherals, displays, drives and adapters shown for context are not included unless explicitly listed above.