[Definitive Guide] The Trap of Type-C Cables | Same Look, Different Contents! How to Choose Without Fail

This article is a clear summary of how to choose the right cable for your needs without making mistakes, intended for those who feel "I don't know which one to choose..." every time they buy a USB Type-C cable, those struggling with issues like slow charging or no video output, and those who want to know "why they look the same but have different performance."

"I bought it thinking any Type-C would do, but charging is slow..."
"The video won't display..."
Have you ever had an experience like that?

USB Type-C is a "shape" standard, and its performance varies greatly depending on the internal mechanism of the cable.

In this article, we have summarized the differences in performance of USB Type-C cables by usage in an easy-to-understand manner.

USB Type-C Standard List (As of 2026)

Standard Name: USB 2.0

Main Uses/Features:
・ You can consider it "almost exclusively for charging" nowadays.
・ Many cables are thin and flexible, making them easy to handle and ideal for charging smartphones.
・ While data transfer is technically possible, it can be quite time-consuming (slow) to transfer photos or videos to a PC.

[Caution]
Very rarely, cables that are "completely for charging only (no data transfer)" are sold.
If it is not recognized when connected to a PC, this is likely the reason.

Pros:
・ Cheap, thin
・ Available everywhere (including 100-yen shops)

Cons:
・ Data transfer takes time
・ Cannot display screens on a monitor

Standard Name: USB 3.2 (Gen 1 / Gen 2 / Gen 2x2)

*Sometimes labeled with the old standard names "USB 3.0" or "USB 3.1".

Main Uses/Features:
・This is an all-purpose cable that you can "rest assured if you have at least one of these."
・ It can be used for backups to external SSDs and for video output from iPads and PCs.
・ Compared to USB 2.0, the cables tend to be slightly thicker and stiffer.

Pros:
Data transfer is dramatically faster (over 20 times faster than USB 2.0)
Can output video to a monitor (convenient for telework, etc.)

Cons:
・ More expensive than USB 2.0
・ The names are confusing
*"USB 3.0," "3.1," and "3.2" are effectively the same family of standards, but the labeling is inconsistent and easy to confuse.

[Caution]
Presence of Video Output:
Even with the USB 3.2 standard, some inexpensive products do not support "video output (DP Alt Mode)."
If you plan to connect it to a monitor, it is safer to check if the product description mentions things like "4K output supported."

Beware of the old "3.0" label:
Older models labeled only as "USB 3.0" in the product name often do not support video output.

Standard Name: USB4 / Thunderbolt 4 / 5

Main Uses/Features:
・This is the flagship standard for "when in doubt, choose this, but it's a premium product."
・ Ideal for high-end PCs like the MacBook Pro, high-performance docking stations, and ultra-fast external SSDs.
・ Since it has backward compatibility (USB 3.2 and 2.0) for all performance aspects, you can use this one cable for everything.

Pros:
・ Currently the fastest transfer speed available. Even heavy video data transfers finish in an instant.
・ The stability of video output is extremely high, making it an essential cable for creators who frequently use external monitors.
・ With Thunderbolt 4 or higher, you have the peace of mind that "any cable you buy will be high-performance."

Cons:
・ Very expensive (several thousand yen per cable)
・ The cables are thick and heavy, and there are few options for "long cables" like 1m or 2m

[Caution]
Older cables before Thunderbolt 3 could have reduced performance due to the difference between "passive/active," but if you choose the latest Thunderbolt 4 / 5 you can achieve maximum performance without worrying about those complex specifications.

So, which one should I buy? [By Purpose]

I have introduced various standards so far, but for those who are wondering, "So, which one is for me?", I have summarized recommendations by purpose.
Please choose the one that fits your lifestyle.

① For those who mainly charge smartphones and earphones

Recommended: USB 2.0 (60W)

Reason:
If you don't transfer data and mainly charge while sleeping, this is sufficient.

Point:
It is cheap and thin, making it easy to handle.
100-yen shop items or sale items are fine, but choosing an Anker product is safer.

② For telework, monitor output, and iPad users

Recommended: USB 3.2 Gen 2 (10Gbps / 100W or more)

Reason:
This is the "best value" option that allows you to display your screen on a monitor while also providing power with a single cable.

Point:
When searching, it is safe to check for the text "4K output supported."

3. Video Editors, Mac Users, and Those Seeking the Best

Recommended: USB4 or Thunderbolt 4 / 5

Reason:
This class of bandwidth (speed) is essential when editing video from an external SSD or using a high-performance docking station.

Point:
Although they are expensive, you can buy the peace of mind that “with this one cable, you can push the standard to its limits.” These cables are the embodiment of the maximum speeds current technology has reached.

Final Check: Check the “Wattage” Before You Buy!

Regardless of which standard you choose, it is safe to check the “wattage of the charger you are currently using.”

If charging a laptop: 100W (or the latest 240W) support
If only for a smartphone: 60W support is sufficient

Since “bigger covers smaller,” when in doubt, choose 100W or higher USB 3.2 Gen 2 for convenience in both charging and data transfer.

Thank you for reading to the end.

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