UGREEN X377 35066 USB-C to HP DC Power Tip
Overview
UGREEN X377 35066 changes the physical laptop-side connector from USB-C female to the blue-ring round HP-style centre-pin connector used by certain HP notebooks. The USB-C receptacle is power input only. It does not carry USB data, video, docking or file-transfer functions.
What it does well.

Key features
Highlights
- Laptop family: designed for selected HP laptops using the blue-ring round HP-style centre-pin connector.
- USB-C power input: female USB-C receptacle accepts a compatible USB-C PD charger cable.
- Power class: 67W-class use for the listed HP requirement.
- Electrical matching: listed HP examples use 19.5V and approximately 2.31A–3.33A; verify the original adapter label.
- Power-only function: no USB data, display signal, network, audio or dock features.
- Compact right-angle body: reduces the number of full charger assemblies carried when the complete PD chain is verified.
- No charger included: the wall charger and USB-C cable are separate and must meet the laptop’s requirement.
- One-brand connector: similar-looking barrel tips can differ in diameter, pin, length and identification behavior.
USB-C input, DC output and power-chain map
Know the connector roles
Every link in the chain matters. The tip solves only the final connector interface and must not be used to guess at laptop power requirements.
- Wall outlet: supplies mains power to a separately purchased certified USB-C PD charger.
- USB-C PD charger: must advertise a power profile compatible with the laptop/tip requirement; maximum wattage alone is not proof.
- USB-C cable: must be power-capable for the required current and undamaged; a low-rated or charging-only cable can limit the result.
- USB-C female input: on the X377 tip accepts power from the compatible cable; it is not a laptop data port.
- HP DC male output: round blue-ring plug with a visible centre pin; diameter is not specified and must not be guessed.
- Laptop charging circuit: decides whether to accept the source and may report slow/unsupported charging when the chain is mismatched.
- No accessory output: there is no extra USB port and no way to power a second device from the tip.
Use scenarios
Where it makes sense
Use the tip as a travel or replacement connector only after comparing the original power adapter label and physical laptop socket.
- Power a compatible HP laptop from one high-quality USB-C PD charger instead of carrying a second full wall adapter.
- Create a compact travel setup with a separately selected PD charger and cable that meet the laptop’s sustained power requirement.
- Keep a compatible tip at a desk or in a service kit for a known laptop model whose original adapter specification has already been documented.
- Use with a multiport PD charger only when that charger maintains the necessary output after other devices are connected.
- Recover temporary charging access when the original adapter is unavailable, provided the laptop jack and electrical requirements are matches.
- Not for bench-testing unknown laptops, universal-voltage experimentation or bypassing a damaged/loose laptop DC socket.
Setup and usability guidance
A dependable first connection
Compare first, energise last. Never test-fit by force or rely on a connector that is loose in the laptop.
- Read the laptop’s underside label, service documentation or original charger output and confirm it matches the listed 19.5V-class HP input, required current and the blue-ring centre-pin jack.
- Compare the laptop jack with the blue-ring round HP-style plug with centre pin; outer/inner diameter and insertion length must be measured or documented; check outer shape/diameter, inner pin or aperture, insertion length and fit.
- Select a certified USB-C PD charger that exposes the required voltage and enough current/wattage, then select a USB-C cable rated for that load.
- With the equipment unpowered where practical, inspect all contacts for debris, corrosion, bent pins or looseness.
- Connect the USB-C cable firmly between the PD source and the tip, then insert the DC plug straight into the laptop jack without twisting.
- Energise the charger and confirm the laptop reports normal charging rather than an unsupported/slow adapter warning.
- During the first use, observe the tip, cable and laptop jack for abnormal warmth, smell, flicker or intermittent charging under normal load.
- Disconnect by holding each connector body. Remove mains power before changing parts in an uncertain setup.
Compatible devices and systems
Match the whole chain
Compatibility is determined by the complete power chain, not the laptop brand name alone. Model lists are examples only when physical and electrical requirements match.
- Selected HP laptops with the blue-ring round HP-style centre-pin connector and supported electrical requirement.
- Systems matching listed 19.5V HP examples drawing approximately 2.31A to 3.33A within the supported power class.
- USB-C PD wall chargers that explicitly offer the needed output profile and sufficient sustained wattage.
- USB-C cables rated for the required current; higher-current profiles may require a compliant electronically marked cable.
- Mains regions supported by the separate charger; the tip itself does not connect directly to AC power.
- Laptops whose DC input and battery/charging circuit are undamaged and within manufacturer specification.
- Not automatically compatible with every HP notebook, USB-C-native laptop, gaming model or machine using a visually similar connector.
What this product does
Capabilities
- Presents the blue-ring round HP-style centre-pin connector to a compatible HP laptop.
- Accepts power through a USB-C female input from a separately selected compatible PD source and cable.
- Provides a compact way to reuse a suitable USB-C PD charging setup for one known legacy-DC laptop.
- Supports the power class and electrical guidance documented for this SKU when every chain component matches.
- Offers a right-angle tip body that can keep the cable close to the connector area.
- Eliminates no safety checks: it remains dependent on laptop, charger, cable and connector condition.
What this product does not do
Clear boundaries
- It does not generate power and is not a wall charger, battery, cable or universal AC adapter.
- It does not provide USB data, file transfer, display output, Ethernet, audio or docking.
- It does not fit every HP laptop; connector geometry and identification can differ within the brand.
- It does not make an underpowered charger supply the laptop’s required voltage/current.
- It does not repair a damaged jack, failed battery, charging circuit or motherboard.
- It does not guarantee full-speed charging while the laptop is under heavy CPU/GPU load.
- It does not authorise mixing unknown voltage, polarity or connector adapters in series.
What to do
Good practice
- Photograph or write down the original charger output and laptop model before selecting the source, cable and tip.
- Match physical connector shape, electrical output and required wattage across the complete chain.
- Use a certified USB-C PD charger and an appropriately rated, undamaged USB-C cable.
- Insert and remove by the connector bodies, keep the right-angle tip strain-free and support the cable on a desk.
- Watch the first full charging session and stop for any unsupported-adapter warning, instability or abnormal heat.
- Return to the manufacturer-approved charger when compatibility cannot be or the laptop has a damaged socket.
What not to do
Avoid these mistakes
- Do not choose by brand logo, colour or approximate barrel diameter alone.
- Do not force the plug, rotate it under load, bend the laptop jack or continue with a loose/intermittent fit.
- Do not connect a non-PD USB source, an under-rated cable or an unknown barrel-power supply into the USB-C input.
- Do not chain this tip with another DC converter, polarity reverser, barrel-size adapter or power bank whose required profile is unverified.
- Do not exceed the supported power/electrical guidance or use it with a laptop requiring a higher-power adapter.
- Do not leave a new or uncertain charging combination unattended, covered by bedding or exposed to moisture.
Warnings and limitations
Important safety and performance notes
Incorrect laptop power can damage the charger, cable, tip or computer. A plug that physically fits is not proof of electrical compatibility.
- Verify voltage, current capability, wattage, connector geometry and any centre-pin/identification requirement before connection.
- The charger may redistribute power when another port is connected. Confirm the laptop still receives the necessary profile in multi-device use.
- An underpowered source can cause battery drain while plugged in, slow charging, repeated negotiation or system shutdown under load.
- Abnormal heat at the tip often indicates poor contact, an overloaded cable/source or a damaged jack. Disconnect immediately.
- Do not use around liquid, a swollen battery, exposed conductors, a cracked charger or a loose/sparking laptop socket.
- High-power USB-C cables can look identical to low-rated cables. Use known specifications, not appearance.
- This accessory should not be used to diagnose unknown electronics or to bypass the laptop manufacturer’s safety limits.
Care, troubleshooting and buying checklist
Keep it working and solve common issues
When charging fails, test the original charger first and change one part at a time: PD source, cable, tip and laptop jack.
- No charging: verify the charger offers the required PD profile, use a known high-current cable and reseat both ends.
- Slow-charger warning: the source/cable may provide insufficient wattage, or the laptop may require identification this chain does not satisfy.
- Charges idle but drains under load: the computer is consuming more than the negotiated input; use the correct higher-capability approved charger path.
- Connects and disconnects: stop using the setup, inspect for looseness/debris and test the original adapter to distinguish tip, cable and laptop-jack faults.
- Tip or jack becomes hot: disconnect from mains and laptop immediately; do not continue testing a poor or overloaded connection.
- Works until another device is added: the multiport charger is reallocating power. Remove other loads or use a dedicated compliant source.
- Buying check: verify the blue-ring round HP-style plug with centre pin; outer/inner diameter and insertion length must be measured or documented, original adapter output, required wattage, PD charger profiles and cable current rating.
Technical specifications
Model details
Brand / series / SKU
UGREEN X377 / 35066
Product type
USB-C female to HP laptop DC power tip
Input connector
USB-C female, power input only
Output connector
Blue-ring round HP-style DC male with centre pin; diameter not specified
Intended laptop family
Selected compatible HP models only
Power class
67W-class use for the listed HP requirement
Electrical guidance
19.5V and approximately 2.31A–3.33A examples listed; model match required
Required upstream source
Compatible USB-C PD charger, purchased separately
Required cable
USB-C power cable rated for the required current, purchased separately
Data transfer
Not supported
Video / docking
Not supported
Charger included
No
Cable included
No
Laptop included
No
Universal compatibility
No; physical and electrical match required
Repair / voltage experimentation
Not supported
Package contents
- 1 Ă— UGREEN X377 35066 USB-C-to-HP DC power tip
- USB-C PD wall charger, USB-C cable, laptop and travel pouch are not included