UGREEN 55517 Magnetic USB-C Cable, 100W, 1m
Overview
UGREEN 55517 Magnetic USB-C Cable, 100W, 1m is a 1m braided USB-C to USB-C cable designed to organise itself into a compact coil. Neodymium magnetic material is distributed through the cable body; the USB-C plugs are ordinary wired connectors, not detachable magnetic tips.
What it does well.
Key features
02 · At a glance
100W PD maximum. Maximum listed charging is 100W through compatible USB Power Delivery equipment. A typical 100W profile can require 20V/5A, but the actual voltage and current are negotiated and controlled by the charger and device.
5A E-marker. For the 100W ceiling, use a compatible USB-C PD charger with a 5A-capable port and a receiving laptop or device that supports the corresponding PD profile.
480Mbps data. UGREEN identifies PD3.0 and a 100W maximum. The cable does not add PPS, proprietary fast charge or a voltage profile absent from the charger and receiving device.
Magnetic cable body. No cable driver is required. USB file transfer can need phone permissions, MTP software or a device-specific application; charging negotiation is handled by USB-C hardware.
Connectors, direction and interface clarity
03 · Physical fit
USB-C male at both ends. Reversible conventional plugs for a USB-C power source and USB-C receiving device. There is no magnetic breakaway tip.
E-marker. An electronically marked cable identity supports safe negotiation for current above the unmarked-cable limit when the charger and device request it.
Magnetic cable body. Distributed magnetic material encourages the braid to self-coil for storage. It does not create wireless charging or connector retention.
Braided strain relief.
Signal, data or power performance
04 · Capability
Maximum listed charging is 100W through compatible USB Power Delivery equipment. A typical 100W profile can require 20V/5A, but the actual voltage and current are negotiated and controlled by the charger and device.
A 100W cable does not make a lower-power charger faster. Phones, tablets, handheld consoles and laptops draw only a profile they support, subject to temperature, battery state and manufacturer limits.
Data transfer is USB 2.0 up to 480Mbps. Real throughput is lower, and the cable is not intended for high-speed external SSD, USB4 dock, Thunderbolt display or 4K video workflows.
An E-marker reports cable capability; it does not regulate a faulty supply, cool the cable or guarantee zero heat. Slight warmth can be normal at high power, but abnormal heat requires immediate disconnection.
What the entire connection must support
05 · Complete path
For the 100W ceiling, use a compatible USB-C PD charger with a 5A-capable port and a receiving laptop or device that supports the corresponding PD profile.
Some multi-port chargers reduce per-port output when another port is used. Read the charger's distribution table rather than relying on its total wattage.
A USB-C port can be charging-only, USB 2.0, USB 3.x, DisplayPort or Thunderbolt. This cable provides only the charging and USB 2.0 data functions for SKU 55517.
USB-C phones and tablets can exchange data when one endpoint acts as host and software permissions allow it. Two charge-only ports or locked devices will not create a data session.
Standards, negotiation and operating roles
06 · Behaviour
UGREEN identifies PD3.0 and a 100W maximum. The cable does not add PPS, proprietary fast charge or a voltage profile absent from the charger and receiving device.
Electronically marked 5A cables are required for high-current USB-C PD operation. Negotiation occurs before high power is delivered; connector cleanliness and secure insertion remain essential.
USB 2.0 data up to 480Mbps is separate from charging wattage. A high power rating does not imply SuperSpeed lanes, USB4 tunnelling or display capability.
Magnetic self-organisation is mechanical cable management. It is not MagSafe/Qi charging, magnetic data transmission or a quick-release safety connector.
Ceiling, not a promise
A connector or standard label describes capability. The complete source, destination, cable route, software and negotiated mode determine the real result.
Compatible devices and systems
07 · Device fit
USB-C laptops. Models accepting USB-C PD up to or below 100W; actual rate depends on charger, port and the laptop's supported profile.
Phones and tablets. USB-C devices that negotiate their own lower supported charging rate; USB 2.0 data is conditional on host role and permissions.
Handheld consoles and accessories. Only within the manufacturer's USB-C power guidance; use the approved charger profile for devices with strict power behaviour.
Power banks and chargers. USB-C PD sources or sinks that follow compatible profiles; check whether each port is input, output or bidirectional.
Use scenarios
08 · Practical value
Tidy desk charging. Let unused slack self-coil beside a laptop or tablet while keeping ventilation and connector strain under control.
Travel packing. Coil the 1m cable into a compact bundle without a separate tie, then keep it away from magnetic-stripe cards.
Laptop power. Pair a compatible 100W USB-C PD charger with a laptop that accepts the required profile.
Everyday sync. Transfer ordinary files at USB 2.0 speeds while charging a compatible phone, tablet or accessory.
Setup and usability guidance
09 · Usability
- Inspect and clean both USB-C ports and confirm the charger output and receiving-device input support the intended PD wattage.
- Connect the charger to mains, insert one USB-C plug fully into its intended output and connect the other to the device without adapters.
- Check the device's charging indicator and operating-system power report; do not infer 100W from the cable marking alone.
- For data, unlock the device, choose file-transfer or accessory permissions and connect to a USB host port rather than a charge-only port.
- Allow unused length to self-organise, but uncoil the cable if the bundle becomes warm, needs ventilation or creates strain at either plug.
- After use, disconnect by gripping the plug shells, let the cable form a relaxed coil and store it away from sharp objects and magnetic media.
Operating-system, driver and software guidance
10 · Host behaviour
No cable driver is required. USB file transfer can need phone permissions, MTP software or a device-specific application; charging negotiation is handled by USB-C hardware.
Laptop charging status can report slow charger when the source wattage or profile is below the system requirement. The cable cannot raise a charger port's output.
No video function is verified. If a monitor remains blank through this cable, that is expected rather than a driver problem; use a cable explicitly supporting DisplayPort Alt Mode or the required video standard.
Software boundary
The passive product has no firmware or driver. Connected hosts, adapters and peripherals can still require model software, permissions or settings.
What this product does
11 · scope
- Provides a 1m USB-C male-to-male charging and USB 2.0 data connection.
- Supports compatible USB PD charging up to the listed 100W ceiling.
- Includes an E-marker for high-current cable identification.
- Uses a magnetic self-organising cable body to reduce loose loops in storage.
- Supports data up to 480Mbps between devices that establish a USB 2.0 session.
What this product does not do
12 · Clear boundaries
- It is not a magnetic breakaway connector, wireless charger, MagSafe or Qi cable.
- It does not guarantee 100W from every charger or into every device.
- It is not a USB 3.x, 10Gbps, USB4 or Thunderbolt cable.
- It does not carry HDMI or DisplayPort video and is not a display cable.
- The E-marker does not eliminate heat, repair unsafe equipment or override device charging limits.
What to do
13 · Best practice
Recommended. Match charger wattage, USB-C port output and receiving-device PD profile before planning 100W use.
Recommended. Keep ports clean, plugs fully seated and cable bends relaxed.
Recommended. Uncoil the cable during sustained high-power use if the bundle limits cooling.
Recommended. Store it away from magnetic-stripe cards, compasses and items whose maker warns against magnets.
What not to do
14 · Common mistakes
Avoid. Do not mistake the self-coiling body for a detachable magnetic safety connector.
Avoid. Do not expect video, SSD-class throughput or Thunderbolt docking from the 480Mbps data path.
Avoid. Do not tightly bundle, cover or trap the cable while charging at high power.
Avoid. Do not continue using it with liquid exposure, debris, looseness, arcing, discolouration, odour or abnormal heat.
Warnings and limitations
15 · Read before use
Warning / limitation 1. Magnets can affect magnetic-stripe cards and precision magnetic sensors. Follow medical-device and equipment-maker separation guidance where applicable.
Warning / limitation 2. High-power charging can produce warmth at the charger, cable and device. Disconnect immediately if heat is painful, localised, increasing or accompanied by smell or discolouration.
Warning / limitation 3. A damaged or contaminated USB-C contact can overheat. Inspect both ends and never use metal tools or liquid in an energised port.
Warning / limitation 4. No water-resistance rating is verified. Keep the cable dry and do not use it where moisture, crushing or repeated vehicle-door/mechanical stress is expected.
Troubleshooting by symptom
16 · Diagnostics
Charging is slower than expected. Check the charger's per-port PD output, the device's accepted profile, battery temperature/state and whether other charger ports are sharing power.
Laptop says slow charger. Use a charger port matching the laptop requirement, disconnect competing loads and confirm the laptop accepts up to 100W over that USB-C port.
No file transfer. Use a real host data port, unlock the phone/tablet, choose file-transfer permission and test another USB 2.0-capable device without adapters.
Cable or plug becomes hot. Disconnect from mains and device, allow everything to cool, inspect for debris or damage and do not resume until the charger, cable and port are known safe.
At a glance.
- Product
- UGREEN self-organising magnetic USB-C cable
- SKU
- 55517
- Length
- 1m
- Connector A / B
- USB-C male / USB-C male
- Maximum charging
- Up to 100W USB Power Delivery, complete-chain dependent
- Cable current identity
- E-marker for 5A-capable negotiation
- Data
- USB 2.0 up to 480Mbps
- Video
- Not verified / not supported as a display cable
- Cable management
- Magnetic self-coiling body; conventional wired connectors
- Jacket
- Reinforced braided construction
- Connector detail
- Nickel-plated surfaces and extended strain relief shown
- Colour
- Space grey / dark braided cable shown
17 · data
Confirm the sealed SKU and included-item list. Devices, converters, chargers, cables or mounting accessories are not included unless explicitly listed above.
Questions buyers ask.
Are the USB-C connector tips magnetic?
No. The plugs are conventional wired USB-C connectors. Magnetic material in the cable body helps it coil for storage; it is not a breakaway tip.
Will it always charge at 100W?
No. 100W is the cable ceiling. Charger port, PD profile, receiving device, power sharing, temperature and battery state set the actual wattage.
What does the E-marker do?
It electronically identifies cable capability during USB-C negotiation, including support for high current. It does not regulate a faulty charger or guarantee zero heat.
Does it support 480Mbps data?
Yes, up to the USB 2.0 interface ceiling when the devices establish a data session. Real throughput is lower and this is not a SuperSpeed cable.
Can I use it for a monitor or USB-C dock?
Not for functions requiring DisplayPort Alt Mode, USB 3.x, USB4 or Thunderbolt. Use a cable explicitly rated for the dock or display's video and data requirements.
Can it charge phones and tablets safely?
Compatible devices negotiate a supported lower profile. Use a sound USB-C PD charger and follow the device maker's charging guidance.
Can I use it with a Nintendo Switch or handheld console?
Only within the console maker's approved USB-C charging rules and charger profiles. Connector fit alone is not a power-compatibility guarantee.
Should I leave it coiled while charging?
A relaxed coil is convenient at low load, but uncoil it for sustained high-power charging if the bundle limits airflow or becomes warm.
Will the magnets harm devices?
Keep the cable away from magnetic-stripe cards and precision magnetic sensors, and follow any medical-device or equipment-maker magnet-separation guidance.
What should I do if charging stops or reconnects?
Clean and inspect both ports, connect directly, try a known-good PD charger and device, remove shared loads and stop using the cable if movement affects the link.
What is included?
One UGREEN 55517 1m magnetic self-organising USB-C to USB-C cable. A wall charger, power bank, laptop, phone and adapters are not included.