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USB-C to USB-C Cable (3.1) - 3m

USBC-C-3M

USB-C to USB-C cable for data and charging. Length 3 metres.

Type: USB
Length: 3 m
Connectors: USB-C

In-depth technical details

USB-C's real distinguishing feature is symmetry: 4 VBUS + 4 GND pins (for reversibility and higher current), 2 CC pins (only one active at a time -- the actual mechanism behind "plug it in either way, it just works" and how USB Power Delivery negotiation happens), plus SuperSpeed TX/RX differential pairs that can carry USB 3.x data or, in Alt Mode, DisplayPort/Thunderbolt video instead. A USB-C cable's real capability (charging-only vs data vs video-alt-mode) depends on which of these pins it actually wires through.

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Connector anatomy

USB Type-C

01 24 pins, reversible The pins are laid out with rotational symmetry, so either way up gives the same connection. That is why there is no wrong way round.
02 CC negotiation lines The two ends use these to agree voltage and current before any power flows — what makes 100 W charging safe.
03 Oval shell The rounded oval spreads insertion stress and survives being plugged in far more times than older shapes.
04 Strain-relief boot Stops the wires flexing where they leave the plug — the exact point most cables fail.
05 Outer jacket The outer sheath protecting the conductors inside from abrasion and moisture.

Technical illustration, not a photo of the actual product

How it works

USB cable construction

The data pair is twisted and works differentially, like network cable. The power wires are thicker because they carry current, and their thickness is what really decides whether a cable charges fast.

01 Power wires 5 V by default, and USB PD negotiates it up to 20 V to reach higher wattages. Thicker copper means less voltage drop over the run.
02 Twisted data pair D+ and D−: the same signal inverted, so noise cancels at the receiver.
03 Shield A grounded conductive wrap that absorbs electromagnetic interference before it reaches the signal.
04 Outer jacket Protects everything inside mechanically. It plays no electrical role.

Technical illustration, not a photo of the actual product

From the published standard

How it works

The data pair is twisted and works differentially, exactly like network cable, while power travels on two thicker wires with USB-C Power Delivery negotiating the voltage up (9V/15V/20V) for higher wattages rather than staying fixed at 5V. Conductor thickness still sets the practical ceiling: the longer and thinner the cable, the more voltage drop, which is why a long thin cable underdelivers even with a powerful PD charger.

Data: Differential pair (D+ / D−), twisted
Power: 5 V default, PD negotiates up to 20 V
What limits charging speed: Conductor thickness and length, via voltage drop (once PD sets the voltage)

This information comes from published sources about this type of product, not from the supplier.

en.wikipedia.org

Applications

Connecting equipment in an office or studio

Technical specifications

Type	USB
Length	3 m
Connectors	USB-C

Alternatives

USB-C to USB-C Cable (3.1) - 1.5m shorter

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