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A10M9
Greenport
At the heart of this cable is a staggering 240W maximum power output — the highest tier available in consumer USB-C charging cables today. Supporting 48V/5A high-power charging, it delivers the kind of speed that fundamentally transforms how you think about staying powered up. Charge a laptop from near-empty to 65% in just 45 minutes. What used to take two-plus hours now fits into a lunch break.
This is PD240W (Power Delivery 240W), the latest and most demanding USB-C charging standard, engineered specifically for high-performance laptops, workstations, and next-generation smartphones. Most cables on the market max out at 100W or 140W — this one doubles that ceiling. Whether you're powering a MacBook Pro, a Windows gaming laptop, a Samsung Galaxy flagship, or an iPad Pro, this cable delivers the full rated power your charger is capable of outputting, with zero compromise.
The practical impact is enormous. A 100W cable charging a 96Wh laptop battery takes over an hour to fill. This cable at 240W can theoretically cut that time in half. For professionals who travel, work from cafes, or live between meetings, that difference isn't a spec sheet number — it's time back in your day, every single day.
Delivering 240W safely is not simply a matter of using thicker wires. It requires active intelligence embedded in the cable itself. This cable houses a 240W E-Marker smart chip inside the connector body — a dedicated integrated circuit that handles the entire power negotiation process between charger and device.
The E-Marker chip communicates with USB Power Delivery (PD) protocols to identify the cable's rated capacity and communicate it to the charger. Without this chip, chargers are limited to a maximum of 60W by the USB-C specification as a safety default. With the E-Marker chip present and verified, the charger unlocks higher voltage and current tiers — all the way up to 48V/5A — only when conditions are safe and stable.
In practice, this means the chip is automatically adjusting voltage and current in real time throughout every charging session. If your device's battery is nearing full, the chip reduces current draw. If the cable detects a thermal issue, it throttles power. Every variable is managed continuously — not once at connection, but constantly as conditions change. Your laptop, phone, and tablet receive precisely what they need, when they need it, with built-in protection against overvoltage, overcurrent, overheat, and short circuit scenarios.
This is the difference between a cable you trust and one you merely tolerate.
Most cables are black boxes — you plug in and hope for the best. This cable changes that entirely with a built-in LED digital display embedded directly in the connector housing, showing you exact real-time charging wattage (W), current (A), and voltage (V) at all times during a charging session.
The display cycles through three readings: amps, volts, and watts — the three key metrics that fully describe what your charging setup is actually delivering. This is information that previously required a separate USB power meter or a dedicated app. Here, it's built in, always visible, always current.
The practical value goes well beyond curiosity. When you plug into a new wall charger or USB-C port, the display immediately tells you whether fast charging has been negotiated or whether you're getting trickle-charge speeds. If your 240W charger is only showing 18W on the display, you know immediately that the issue is the charger, the wall outlet, or the device — not the cable. Diagnosing charging problems that would otherwise require hours of forum research takes seconds with this display.
For power users with multiple chargers and devices, the display is invaluable. You'll always know your charging setup is performing optimally, and you'll catch underperforming adapters before they frustrate you on a tight timeline.
The most visually dramatic feature of this cable is its 540° total rotation capability — a dual-axis movement system that makes every other cable feel rigid and limiting by comparison. The system combines two independent rotation mechanisms: a 360° full-circle rotation on the magnetic connector head, plus a 180° pivot joint at the base of the connector body, for a combined 540° of articulation.
The 360° rotation means the magnetic tip can spin freely in a full circle around the cable axis. No matter which direction your charging port faces — the side of a laptop, the bottom of a phone, the edge of a tablet — the tip rotates to meet it without creating a twist or kink in the cable. The cable simply flows naturally from whatever direction it comes, while the tip faces the port cleanly.
The 180° pivot joint adds a second dimension: the connector head can fold flat left, fold flat right, or stand straight up, each at 90° from center. This means the cable can exit a port horizontally along the surface of a device rather than sticking straight out perpendicularly. For phones in car mounts, laptops on tight desks, or any setup where space is constrained, this flat-exit configuration eliminates the awkward protruding cable that snags on things, blocks adjacent ports, and levers stress into the charging port itself.
Combined, these two axes mean there is essentially no charging angle this cable cannot reach cleanly and naturally. It is the last cable you will ever need to wrestle with.
The interchangeable tip design uses precision-engineered magnetic attraction to create an instant, reliable connection with zero fumbling. The magnetic force is strong enough to hold firmly during charging and data transfer — no accidental disconnections, no wobble, no intermittent contact — yet releases cleanly with a deliberate pull, making swapping tips a one-second operation.
Three tip types are included in the package:
USB Type-C magnetic tip — for modern Android smartphones, tablets, laptops, Nintendo Switch, and all USB-C accessories. Supports up to 240W in this configuration.
Micro USB magnetic tip — for older Android devices, Bluetooth headphones, gaming controllers, portable power banks, and countless legacy accessories. Supports up to 12W.
i-Product magnetic tip — for iPhones, AirPods charging cases, iPads with Lightning ports, and compatible Apple accessories. Supports up to 12W.
The magnetic contact interface on the connector body is standardized across all three tip types, with a precision gold-pin center contact visible at the heart of the magnetic face. This contact maintains reliable electrical connectivity for both power and data through the magnetic interface, ensuring that the convenience of magnetic connection doesn't come at the cost of charging stability or data integrity.
In households with multiple devices across different platforms — an iPhone, an Android tablet, a Windows laptop — this single cable replaces three separate cables entirely.
This cable is not a charge-only accessory. It supports 480Mbps USB 2.0 data transmission — full USB Hi-Speed data rates — simultaneously with charging, with no need to switch modes or sacrifice one function for the other.
480Mbps translates to 60MB per second of theoretical throughput, sufficient to transfer a 4K video file in seconds, sync a phone's entire photo library in minutes, or back up a tablet's documents in the time it takes to pour a coffee. For content creators, the ability to offload media from a device while it charges simultaneously is a genuine workflow improvement — arrive at your desk, plug in one cable, and both your device's battery and your backup drive are being handled in parallel.
The data functionality works through the same magnetic tip interface as charging, meaning there are no separate data ports or cables to manage. One connection handles everything.
The three-tip system delivers comprehensive compatibility across virtually every modern device category. The output specifications by configuration are:
Type-C to Type-C: 240W maximum — this is the flagship configuration, suitable for high-power laptop charging, fast-charging Android flagships, and USB-C tablets. Any device that supports USB Power Delivery will benefit from the full 240W ceiling.
Type-C to Micro: 12W — covers the enormous installed base of Micro USB devices still in active use worldwide, including budget smartphones, Bluetooth audio devices, gaming peripherals, and portable battery packs.
Type-C to i-Product: 12W — covers iPhones through the Lightning era, AirPods charging cases, and older iPad models.
The interface list — Type-C / Micro / i-Product — means this cable has no meaningful gap in compatibility. Whatever you need to charge today or tomorrow, this cable is ready.
The connector housing is precision-machined from high-quality aluminum alloy — a material choice that elevates this cable far above plastic-bodied alternatives in every measurable way.
Anti-oxidation: Aluminum alloy is inherently resistant to corrosion. The connector contacts and housing surfaces will not degrade, tarnish, or develop electrical resistance over time from moisture, sweat, or environmental exposure. The cable maintains its performance and appearance season after season.
Anti-scratch: The hardness of the alloy shell means it resists surface scuffs and cosmetic wear from being thrown into bags, dragged across desks, and handled hundreds of times daily. Two years from now, this cable will still look intentional and well-made rather than beaten and cheap.
Structural integrity: Aluminum alloy absorbs mechanical shock far better than plastic. Drops, compression under other items in a bag, and the constant micro-stress of daily handling are absorbed by the metal structure rather than transmitted to the internal components and conductors.
The grey anodized finish gives the cable a premium, understated aesthetic that fits naturally in professional environments alongside high-end laptops and workstations.
The cable's outer jacket is a tightly woven nylon braid over an internal structure of reinforced conductors — a construction method chosen specifically for durability, flexibility, and tangle resistance.
The nylon braid serves as a mechanical armor layer. When the cable is bent, twisted, coiled, or compressed, the braid distributes that mechanical stress evenly across hundreds of interlocked fibers rather than concentrating it in one spot. This is why nylon braided cables outlast rubber-jacketed cables by a significant margin — rubber cracks, hardens with age, and eventually fails at the most-stressed points near the connectors. Nylon does none of these things.
The anti-tangle property comes from the braid's natural stiffness and memory. Rubber cables collapse into tight knots when stored in bags; braided cables hold their shape loosely and uncoil with minimal effort. For a cable that lives in a backpack or laptop bag, this quality reduces daily frustration substantially.
Strain relief is provided at both ends of the cable where it meets the connector housing — visible as the ribbed collar sections shown in the product images. These collars prevent the cable from bending sharply at the most vulnerable points, distributing flex across a longer section of cable and greatly extending the connection's service life.
The 540° rotation system was not designed in the abstract — it was engineered for four specific real-world scenarios where ordinary cables consistently fail:
Corner: In tight desk corners where the charging port faces a wall, a standard cable must protrude outward before bending, wasting clearance and stressing the port. With 180° articulation, this cable folds flat along the device surface immediately, routing cleanly against walls and furniture with no wasted space.
Gaming: When holding a phone in landscape orientation for mobile gaming, a standard bottom-mounted cable creates an awkward grip obstruction. The 540° rotation allows the cable to exit the port at any angle — downward, sideways, or backward — keeping the entire grip area clear while the phone charges continuously during gameplay.
Car: Car-mounted phones require the charging cable to exit at whatever angle the mount dictates, often sideways or downward at an awkward angle. The articulating connector adapts to any mount position, lying flat against the dashboard, center console, or vent mount without stressing the USB-C port of the phone.
Laptop: Laptop USB-C ports on the side of the machine are often in tight clearance areas. The flat-exit rotation keeps the cable profile thin against the laptop body, preventing it from being knocked by passersby, blocking adjacent ports, or creating a lever arm that slowly damages the port with repeated use.
Every component has been dimensioned for exact fit and reliable mechanical operation:
Main connector body: 11.9mm wide — fits cleanly against device port surrounds without interference
Upper pivot section: 11mm tall, accommodating the full 180° joint mechanism
Display body section: 18.5mm tall — provides a generous face for the LED display readout
Lower strain relief section: 13mm tall, with ribbed grip collar
Type-C fixed connector (cable end): 11mm wide × 7.5mm contact face, 14mm body, 15.5mm base with reinforced collar
Magnetic tips: All three types standardized at 8.6mm width for universal interchange on the magnetic connector ring
These machined tolerances ensure smooth rotation without binding, secure magnetic tip seating, and consistent display orientation facing the user regardless of cable angle.
| Feature | Specification |
|---|---|
| Product Name | 540° Rotation 240W Magnetic Cable |
| Max Charging Power | 240W (PD) |
| Supported Voltage / Current | 48V / 5A |
| Data Transfer Speed | 480 Mbps |
| Rotation Range | 540° (360° + 180°) |
| Tip Interface Types | Type-C / Micro USB / i-Product |
| Type-C to Type-C Output | 240W (Max) |
| Type-C to Micro Output | 12W |
| Type-C to i-Product Output | 12W |
| Smart Chip | 240W E-Marker |
| Display | Real-time W / V / A LED readout |
| Shell Material | Aluminum Alloy |
| Cable Jacket | Nylon Braided |
| Color | Grey |
| Function | Charging + Data Transmission |
The 540° Rotation 240W Magnetic Cable is the definitive single-cable solution — 240W charging power for laptops, smart E-Marker chip protection, real-time digital display monitoring, universal tip compatibility, and a rotation system that works in every environment you do.
At Greenport, we take pride in being a trusted OEM/ODM manufacturer of high-quality data cables, USB chargers, and mobile accessories. Our commitment to excellence, sustainability, and ethical production has been further validated with our recent achievement: BSCI (Business Social Compliance Initiat
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