UGREEN 0.5m USB 3.0 A to Micro-B Cable (10840)
Overview
A short USB-A-to-USB 3.0 Micro-B cable for compatible external drives, cameras and legacy mobile devices, with SuperSpeed data and ordinary USB charging where the device supports it.
What it does well.
Key features
Quick reference
length. 0.5 metre
Data capability. Up to 5Gbps USB 3.0; backward-compatible data operation depends on both physical fit and device support
Host/source side. USB-A 3.0 male for a computer, charger or compatible USB host
Device/downstream side. Wide two-part USB 3.0 Micro-B male for a matching device socket
How it fits into your setup
Connections and roles
Host or source. USB-A 3.0 male for a computer, charger or compatible USB host
Peripheral or downstream side. Wide two-part USB 3.0 Micro-B male for a matching device socket
Connection role. Host/charger-to-device connection; data is bidirectional after USB enumeration
Power expectation. Up to 5V/2A is stated for compatible devices and sources; no USB-C PD
Short 5Gbps link for USB 3.0 Micro-B storage and devices
Real-world performance
The wide USB 3.0 Micro-B connector was common on portable hard drives and selected cameras. It is not the smaller standard Micro-USB 2.0 plug.
5Gbps requires a USB 3.x host, a USB 3.0 Micro-B device and storage capable of sustaining the workload. USB overhead and drive speed lower real file-copy results.
Gold-plated connector surfaces, copper conductors and braided/foil shielding are stated to support stable data and charging.
Construction and everyday durability
Materials and handling
Construction detail 1. Gold-plated connector surfaces
Construction detail 2. Copper conductors
Construction detail 3. Braided-and-foil shielding
Construction detail 4. Flexible 0.5m jacket with stated 10,000 insertion/bend testing
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
Portable hard drive. Connect a compatible WD, Seagate, Toshiba, LaCie or other drive whose enclosure uses USB 3.0 Micro-B.
Camera workflow. Transfer files from a supported camera with the wide SuperSpeed Micro-B socket.
Legacy phone or tablet. Charge or sync selected older Galaxy or other devices only when they use USB 3.0 Micro-B.
Short desk replacement. Replace the same connector type with minimal cable clutter.
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. USB-A computers and hosts with USB 3.x data
Compatibility check 2. External drives with the wide USB 3.0 Micro-B socket
Compatibility check 3. Selected cameras with USB 3.0 Micro-B
Compatibility check 4. Selected legacy phones/tablets such as particular Galaxy S5/Note 3 revisions; verify the port
Check before buying
Pre-purchase checklist
Connector shape. USB-A 3.0 male for a computer, charger or compatible USB host; Wide two-part USB 3.0 Micro-B male for a matching device socket.
Port roles. Host/charger-to-device connection; data is bidirectional after USB enumeration
Required performance. Up to 5Gbps USB 3.0; backward-compatible data operation depends on both physical fit and device support
Power and video. Up to 5V/2A is stated for compatible devices and sources; no USB-C PD. No native display-video output
- Provides USB-A male to USB 3.0 Micro-B male connection
- Supports data up to 5Gbps with compatible equipment
- Carries up to 5V/2A where source and device support it
- Uses a short 0.5m shielded link
- Not standard Micro-USB 2.0, Mini-B or USB-C
- Not a SATA cable and cannot connect a bare hard drive
- Not USB Power Delivery, Quick Charge certification or laptop charging
- Not a native video or monitor cable
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.
- Compare the device port with the wide two-part USB 3.0 Micro-B plug
- Connect the Micro-B end straight into the device without rocking
- Connect USB-A to a working data port or suitable USB charger
- For data, unlock or power the device and select its required USB mode
- Safely eject storage before unplugging
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 native display-video output. Up to 5V/2A is stated for compatible devices and sources; no USB-C PD.
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 force the wide plug into a standard Micro-USB socket
- Stop using damaged, loose, wet or unusually warm connectors
- Drive performance may be lower through an old hub or USB 2.0 port
- Do not use as a substitute for a drive enclosure or SATA adapter
- Verify legacy phone/camera model revisions because connector types can differ
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 10840
- Model
- UGREEN 10840
- Product type
- 0.5m USB 3.0 Micro-B cable
- Length
- 0.5 metre
- Host/source side
- USB-A 3.0 male for a computer, charger or compatible USB host
- Device/downstream side
- Wide two-part USB 3.0 Micro-B male for a matching device socket
- Connection role
- Host/charger-to-device connection; data is bidirectional after USB enumeration
- Data capability
- Up to 5Gbps USB 3.0; backward-compatible data operation depends on both physical fit and device support
- Power/charging role
- Up to 5V/2A is stated for compatible devices and sources; no USB-C PD
- Native video
- No native display-video output
- Construction
- Gold-plated connector surfaces; Copper conductors; Braided-and-foil shielding; Flexible 0.5m jacket with stated 10,000 insertion/bend testing
- Cable-specific driver
- Not normally required
- Recommended topology
- One direct supported link; avoid unsupported chains
model reference
Inside the box
1 × UGREEN 10840 0.5m USB 3.0 Type-A male to USB 3.0 Micro-B male cable
Computers, chargers, peripherals, displays, drives and adapters shown for context are not included unless explicitly listed above.