Start with the job: charging a phone, powering a laptop, copying files, or connecting a display. Two cables can have the same USB-C plugs and serve different needs. Choosing by the connector alone can leave you with a cable that charges a device but cannot do the other task.
Check both ends first
Look at the ports on your device and charger. A USB-C-to-USB-C cable needs a USB-C port at both ends. It will not plug directly into an older rectangular USB-A charger or a device with a Lightning socket. Confirm your device's exact model rather than relying on a broad compatibility list.
Read the charging requirements
The wattage printed on a cable is a supported limit, not a promise about what your device will receive. Charging depends on the charger, cable and device working together. A 100W cable cannot turn a 20W charger into a 100W supply.
Check the device maker's recommended charger and charging standard. For a Mac, Apple lists model-specific adapter guidance. For a charger with several ports, read its output chart for the combination you plan to use. Apple's dual-port example shows why connecting another device can change the power available. Buying a cable may not solve a charger limitation.
Separate charging from data and video
If you regularly move large files to an external drive, check the cable's stated data rate alongside the computer and drive specifications. A high charging wattage does not establish a high data rate. For a monitor, confirm explicit video support and the requirements of the computer and display. Apple's cable comparison illustrates how cables with USB-C connectors can differ in data and video capabilities.
Choose a useful length
Measure the route from the outlet to where the device will sit. Extra length can help at a bedside or shared desk, but it also creates more cable to manage. Buy a multipack only if you can name a use for the spare.
If the cable supplied with your device already reaches comfortably and performs the task, keep using it. Before replacing a working setup, write down the specific problem you want a purchase to solve.
Follow OTK~Tech on YouTube for more practical technology guides.
An optional cable for charging
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases.
For a charging setup needing more reach, the Anker 333 USB-C-to-USB-C cable, model A8757, is offered as two black six-foot cables. Anker specifies charging up to 100W with compatible equipment, data transfer up to 480 Mbps, and no video output. It could suit charging at two locations, but it is not a monitor cable or a good match for someone seeking high-speed external-drive transfers. This pack contains cables, not a wall charger. We have not personally tested it. Check your device requirements, current seller, length and pack quantity before ordering.
View the Anker six-foot cable two-pack on Amazon (paid link)
Check current price and availability on Amazon before deciding.
Sources & further reading
Have a correction or a question about this guide?
Get in touch with Of The Kingdom →