In stock

USB 3.0 Cable A to A - 0.5m

USB30-AA-0-5M

A USB lead with a Type-A plug at each end.

Type: USB
Length: 0.5 m
Connectors: USB-A

In-depth technical details

USB-A carries just 4 pins: VBUS (+5V power), a D+/D- differential data pair, and GND -- the simplest USB pinout, with no reversibility and no Power Delivery negotiation lines.

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Connector anatomy

USB Type-A

01 VBUS +5V power. Slightly longer than the other pins so it mates first and breaks last.
02 D+ / D− The differential data pair -- the same signal inverted on each wire, so noise cancels at the receiver.
03 GND The common ground -- the voltage reference every other signal is measured against.
04 Metal shell The plastic tongue sits in one half of the shell only, which is why the plug goes in one way up.
05 Strain-relief boot Stops the wires flexing where they leave the plug — the exact point most cables fail.
06 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 and ground. Thicker copper means less voltage drop over the run, and faster charging.
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. The thickness of those power wires is what really sets charging speed: the longer the cable the greater the voltage drop, which is why a long thin cable charges noticeably slowly even from a powerful charger.

Data: Differential pair (D+ / D−), twisted
Power: 5 V and ground on separate, heavier conductors
What limits charging speed: Conductor thickness and length, via voltage drop

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

en.wikipedia.org

Technical specifications

Type	USB
Length	0.5 m
Connectors	USB-A

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