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UGREEN 30389 0.8m Active Thunderbolt 4 Cable, 40Gbps, 100W

Rs. 7,331.00 Rs. 12,209.00
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EXACT SKU 30389 • RESEARCHED BUYING GUIDE

UGREEN 30389 0.8m Active Thunderbolt 4 Cable, 40Gbps, 100W

A user-friendly guide to active Thunderbolt 4 cable for 40Gbps data, display and charging—with charging, data, display, compatibility and limitation claims tied to the exact model instead of a look-alike USB-C cable.

Up to 100W USB Power Delivery (5A)Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment0.8mVideo supported when the source, route and display support the required mode
UGREEN 30389 active Thunderbolt 4 cable with marked USB-C plugs
Exact-model view: SKU 30389 is a 0.8m active Thunderbolt 4 cable with an active signal-conditioning design.

Overview

UGREEN 30389 is a active Thunderbolt 4 cable for 40Gbps data, display and charging in the exact 0.8m configuration. Its verified ceiling is Up to 100W USB Power Delivery (5A) for charging and Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment for data; the listed display limit is Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model.

Charging ceiling

Up to 100W USB Power Delivery (5A). The charger, cable and device negotiate the final output; the lowest supported limit wins.

Data path

Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment. A USB-C connector shape does not by itself reveal the data standard.

Display path

Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model. Every source, dock/adapter and display must support the requested mode.

Length and handling

0.8m for active Thunderbolt 4 cable for 40Gbps data, display and charging. Leave connector slack and avoid tight bends at the housings.

UGREEN 30389 Thunderbolt 4 cable 8K display capability artwork
The listed single-display ceiling reaches 8K only when the source, cable route and display all support that mode.

Charging explained without the guesswork

Maximum: Up to 100W USB Power Delivery (5A).

Negotiation: Thunderbolt 4 with active IC; backward-compatible operation depends on the negotiated USB4/Thunderbolt/USB mode at both ends.

The cable does not push maximum power into a device. USB Power Delivery negotiation lets the charger and device select a supported voltage/current combination. Battery state, temperature and system load can change the observed rate during a session.

For full rated power: use a charger port rated for at least the required wattage, avoid multi-port power sharing during the test, and confirm the device accepts that input level.

UGREEN 30389 charging a compatible USB-C laptop at up to 100W
The 100W ceiling requires a compatible USB-C PD charger and receiving device; the pictured time is only an example.

Key features

Data ceiling

Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment. Marketing file-transfer examples are laboratory illustrations; storage and host speeds determine real results.

Video capability

Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model. This requires a compatible video-capable USB-C/USB4/Thunderbolt path.

Backward compatibility

When a faster host meets a slower cable or peripheral, the link normally falls back to the common supported mode; it does not upgrade the slower device.

The USB-C shape trap

USB-C describes the connector, not a single feature set. Charging power, USB speed, DisplayPort Alt Mode and Thunderbolt certification must be checked separately.

UGREEN 30389 active cable protection-electronics artwork
The exact gallery identifies active electronics and several protection functions; correct handling and compatible ports remain essential.

Use scenarios

Desk charging

Use the 0.8m reach between a suitable USB-C charger and compatible laptop, tablet or phone.

Power-bank kit

Connect compatible USB-C power banks in the supported direction; check which power-bank port is input/output and its wattage.

File sync

Move ordinary files at up to Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment when both connected devices expose a compatible USB data mode.

Displays and docks

Use compatible USB-C/USB4/Thunderbolt hosts, docks and monitors within the Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model ceiling.

UGREEN 30389 driving two compatible 4K monitors from a laptop
Dual 4K output depends on host graphics, operating-system, dock or monitor routing and supported refresh settings.

Setup and usability guidance

  1. Step 1: Check the required job before connecting: charging only, ordinary USB 2.0 sync, high-speed storage, display, dock or eGPU.
  2. Step 2: Confirm both endpoints are USB-C and that 0.8m is the intended length. Similar family products can have different capabilities.
  3. Step 3: For charging, use a suitable USB-C power adapter and a device that supports the required USB Power Delivery profile. Maximum for this cable is Up to 100W USB Power Delivery (5A).
  4. Step 4: For data, connect directly and verify the host reports the expected class. This model is rated Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment.
  5. Step 5: If using a display, connect directly first, select a supported resolution/refresh rate, then add any dock only after the direct path works.
  6. Step 6: Insert straight and fully. Route a relaxed loop, keep plugs dry and disconnect by the housing rather than the cable.

Compatible devices and systems

Verified compatibility class: Thunderbolt 4 laptops, docks, monitors and storage; backward-compatible with suitable Thunderbolt 3, USB4 and lower USB modes, with performance reduced to the common capability.

Phones and tablets

USB-C iPhone models, compatible Galaxy/Pixel phones, iPad USB-C models and Android tablets can use the functions their ports support. Lightning models need another cable.

Laptops

MacBook, Windows, Chromebook and other USB-C laptops can charge only up to the charger/device/cable common limit; data/display capability varies by port.

Handhelds and accessories

Steam Deck, Switch, power banks, cameras and controllers may charge or sync when their manuals permit USB-C-to-USB-C operation.

Docks, displays and storage

Use within the exact interface, speed and display limits. High-performance SSDs and monitors require matching host support.

UGREEN 30389 compatibility chart for Thunderbolt laptops displays and phones
Physical USB-C fit covers many devices, but only matching Thunderbolt or USB4 equipment exposes the full feature set.

What this product does

  • Connects two compatible USB-C ports with the exact 0.8m model.
  • Carries negotiated charging up to Up to 100W USB Power Delivery (5A).
  • Carries data up to Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment on compatible equipment.
  • Carries compatible video up to the listed Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model ceiling.
  • Provides the exact physical build: Black active USB-C cable with Thunderbolt 4 marking, built-in active IC, moulded strain relief, multi-layer shielding and connector safeguard electronics.

What this product does not do

  • not a passive USB 2.0 charging-only cable; 8K/dual-display support is not created on a USB-C port lacking video; not a guarantee that every phone can drive an external screen.
  • It does not include a charger or raise a charger/device above its own designed limit.
  • It does not guarantee a named charge time, file-copy time or display mode under every battery, thermal, storage and operating-system condition.
  • It does not repair a damaged device port, worn battery or unstable charger.
  • It does not prove compatibility from connector shape alone; the device and source must support the intended function.

What to do

Match SKU and length

Order SKU 30389, 0.8m. Similar UGREEN variants may differ in power, speed, display and LED features.

Check the full chain

Verify charger port, host port, dock/adapter, peripheral and display specifications—not just the cable headline.

Leave connector slack

Use a gentle service loop so device sockets do not carry the cable weight or repeated side force.

Test directly first

Remove hubs and adapters when diagnosing. Confirm basic charging/data/display directly, then rebuild the system one component at a time.

What not to do

Do not force a plug

Stop if a case, debris or misalignment prevents full insertion. Clean only with devices powered down.

Do not knot or crush

Do not trap the lead under chair wheels, doors or furniture, and do not wind it tightly around a charger.

Do not use when wet

Keep ports and connectors dry. Disconnect damaged, hot, corroded or discoloured equipment and have it checked.

Do not rely on a headline alone

A maximum wattage or resolution is conditional. Confirm the exact profile, interface and complete route.

Warnings and limitations

Heat: mild warmth can occur during high-power charging; stop use if a plug or cable becomes abnormally hot, smells burnt, arcs or shows damage.

Charging: Up to 100W USB Power Delivery (5A) is a maximum rating, not a promise that a device will request it. Multi-port chargers can lower output when other ports are used.

Data/display: Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment and Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model. Real performance depends on every component.

Care: Exact media shows multi-protection electronics and reinforced connector construction; copy does not claim the cable is immune to sharp bends or connector side-load.

Technical specifications

Brand / SKU UGREEN 30389
Product type active Thunderbolt 4 cable for 40Gbps data, display and charging
Connector A USB-C male
Connector B USB-C male
Length 0.8m
Colour Black
Charging Up to 100W USB Power Delivery (5A)
Charging negotiation Thunderbolt 4 with active IC; backward-compatible operation depends on the negotiated USB4/Thunderbolt/USB mode at both ends
Data Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment
Video Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model
Construction Black active USB-C cable with Thunderbolt 4 marking, built-in active IC, moulded strain relief, multi-layer shielding and connector safeguard electronics
Interface Thunderbolt 4, active cable
Maximum data rate 40Gbps
Maximum stated power 100W USB PD
Maximum listed single display 8K@60Hz
Maximum listed dual display 2 × 4K@60Hz
Active electronics Built-in active IC

How to choose the right UGREEN USB-C cable

Charging only / basic sync

Choose a 480Mbps model whose wattage meets the device. 30389 is Up to 100W USB Power Delivery (5A) and Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment.

Fast SSD or dock

Choose 5Gbps, 10Gbps, 20Gbps, 40Gbps or 80Gbps only when both host and peripheral can use it.

External monitor

Choose a cable that explicitly supports video and the required resolution/refresh; many charging cables do not.

High-power laptop

Match the laptop’s requested wattage. 5A cables need compliant E-Marker electronics; 240W requires USB PD 3.1 equipment.

UGREEN 30389 Thunderbolt 4 data transfer artwork rated up to 40Gbps
Up to 40Gbps requires a compatible high-speed host and peripheral; lower interfaces negotiate their common mode.

Exact-SKU reconciliation: Exact page and live gallery agree on active IC, 40Gbps, 100W, 8K and dual 4K. Broad phone/monitor artwork is treated as examples only: video, charging and data always require the matching capabilities at both endpoints and any dock in between. The listing’s unrelated 157.5 × 158.2 × 17.5mm “dimensions” line is rejected as a catalogue carry-over, not a cable specification.

Troubleshooting

No charging

Check charger power, correct port, device USB-C charging support, connector seating and debris. Test without a dock or adapter.

Charging is slow

Use one charger port, verify the PD profile and watch for device heat, high workload or battery-health settings that reduce charge rate.

No data

Some charger ports are power-only. Try a known data-capable host port, confirm device mode/unlock state and test a different peripheral.

No display

Confirm the host USB-C port supports video, then test directly at a lower resolution/refresh before adding a dock.

Connection drops

Remove strain, hubs and adapters; reseat straight; update host/dock firmware; and test each component separately to find the failing link.

Unexpected warmth

Stop high-power use, inspect for damage and retry with certified compatible charger/device equipment in a ventilated area.

Package contents

1 × UGREEN 30389 0.8m active Thunderbolt 4 cable

No charger, phone, tablet, laptop, monitor, dock, power bank or storage device is included unless the retail package explicitly states otherwise.

Product-specific FAQ

What is UGREEN 30389 best used for?
It is a active Thunderbolt 4 cable for 40Gbps data, display and charging. It supports Up to 100W USB Power Delivery (5A) and Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment; its listed display ceiling is Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model.
Does a charger come in the box?
No. 1 × UGREEN 30389 0.8m active Thunderbolt 4 cable is the listed package. A charger, phone, laptop, monitor, dock and storage device are not included.
Will it always charge at the maximum rating?
No. Up to 100W USB Power Delivery (5A) is the cable ceiling. The charger port, charger sharing state, device battery/temperature, supported PD profile and cable all affect the negotiated output.
Can it transfer data?
Yes, at up to Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment on compatible ports and devices. Real file speed also depends on the host, peripheral, storage and protocol overhead.
Can it connect a laptop to a monitor?
Potentially. Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model is the exact-model ceiling, but the laptop port, operating system, any dock/adapter and the display must all support the requested mode.
Is it compatible with Thunderbolt?
It can negotiate the interfaces stated in the specification and source reconciliation. Performance falls to the common capability of both endpoints; a USB4-compatible cable must not be assumed Thunderbolt-certified unless the exact model says so.
Will it work with iPhone, Galaxy, Pixel, iPad or MacBook?
It can work with compatible USB-C models for the functions their ports support. Apple Lightning models need a different connector. A laptop that expects more power may charge slowly or lose battery under load.
Can I use it in a car?
Yes for a compatible USB-C charger, phone and supported data function such as CarPlay/Android Auto where the car exposes USB-C and accepts that protocol. Route it away from pedals, controls and sharp trim.
What should I do if charging is slow?
Test a single charger port, confirm its output rating, remove adapters, check device temperature and battery settings, reseat both ends and test another known-good PD charger. Multi-port chargers can redistribute power.
What should I do if data or video fails?
Connect directly, confirm both ports support the required function, try the device’s recommended port, update system/firmware and lower display settings if applicable. Remember this cable’s ceiling is Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment and Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model.
Is the cable waterproof or safe to bend sharply?
No waterproof rating is established. Keep it dry and away from heat. Exact media shows multi-protection electronics and reinforced connector construction; copy does not claim the cable is immune to sharp bends or connector side-load. Laboratory tests do not justify knots, crushing, repeated sharp folds or connector side-load.

Final compatibility check

Match SKU 30389, 0.8m, Up to 100W USB Power Delivery (5A), Up to 40Gbps on compatible Thunderbolt 4/USB4 equipment and Up to single 8K@60Hz or dual 4K@60Hz as listed for the exact model. Check every charger, port, dock and destination in the route before ordering.

SKU 303890.8mUp to 100W USB Power Delivery (5A)

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