Two USB-C cables can look similar while serving different needs. Before choosing a USB-C to USB-C data and charging cable, check the connectors, required charging power and data capability separately. The connector shape alone does not answer all three questions.

The USB-C to USB-C cable at Prelium is listed for charging and file transfers between compatible Type-C devices. Its supplier specification lists up to 3A current, a 480Mbps data-transfer rate and a weight of 22.2g. The cable is 1 metre (1m) long. Maximum wattage is not specified. Actual transfer speed depends on the connected devices and files; a current rating alone does not establish a wattage rating.

Check both ends of your setup

A USB-C to USB-C cable needs a USB-C port at the charger or computer end and a compatible USB-C port at the device end. It cannot plug directly into a rectangular USB-A charger. A Lightning-equipped phone needs a different cable at the phone end.

This distinction matters when shopping for a spare. For example, Prelium’s Mi 67W combo is listed with a USB-A output and an A-to-C cable. A C-to-C cable is not a direct replacement for that connector arrangement.

Ask for the power rating

Match the cable to the power requirements of your device and charger. Do not assume a cable supports 60W, 100W or any other wattage unless the product specification or packaging confirms it. Likewise, a cable described as suitable for a phone should not automatically be promoted as suitable for every laptop.

If you are replacing a cable in a branded fast-charging setup, check protocol compatibility as well as the physical connectors. Buying a higher-wattage adapter does not resolve a mismatch elsewhere in the setup.

Charging and data transfer are separate checks

A cable that charges a device does not prove a particular file-transfer speed. If you regularly move large videos or backups, ask for the supported data standard and compare it with the ports on both devices. The slowest supported part of your actual connection can limit the result.

The supplied specification rates this cable at up to 480Mbps; that is not a promise of 480 megabytes per second or of sustained real-world speed. For ordinary phone-to-computer transfers, you may also need to unlock the phone, approve access or select a file-transfer mode. The exact steps depend on the phone and computer. Check the device’s instructions before assuming the cable is faulty.

Do you need monitor or docking support?

Do not choose this cable for video output or a demanding docking setup without explicit confirmation. Prelium’s current listing does not promise those features. The same applies to a specific high-power laptop requirement: obtain the missing specification before buying.

See the side-by-side comparison with Samsung’s EP-DA705 cable for the listed current, data specification, weight and length.

Choose a useful length and inspect the connectors

Measure the route between your socket or computer and the place you use the device. Allow enough slack so the connector is not pulled sideways. Check the stated cable length, connector fit and condition rather than relying on words such as “premium” or “fast.” Replace damaged cables and avoid tight bends around the connector housing.

A five-point purchase checklist

1. USB-C ports at both ends of the intended connection.
2. A confirmed power rating suitable for the device.
3. A confirmed data specification if transfer speed matters.
4. A stated length that reaches comfortably.
5. Explicit video or docking support if those functions are needed.

For a compatible phone adapter setup, see our 20W iPhone adapter and cable guide. Check the Prelium cable listing or ask support for the missing specifications before placing an order.

Prepared by Prelium. Product listings and reference information checked on 20 September 2026. Specifications are listed claims unless stated otherwise; prices, packages and terms can change.