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A good USB‑C cable for laptop charging should be:

• Rated for 100W or 240W USB‑C Power Delivery
  • 100W is enough for most ultrabooks and many 13–14" laptops.
  • 240W / USB‑C PD 3.1 EPR is more future-proof and better for high-power laptops.
• USB‑IF certified, if possible.
• E‑marked, which is required for safe charging above 60W.
• The right length: 6 ft / 2 m is usually a good balance; very long cables can be bulkier or less efficient.
• Matched to your data needs:
  • If you only need charging, a USB‑C charging cable is fine.
  • If you also want fast data, video, docks, or monitors, get a USB4 or Thunderbolt 4/5 cable.

Good options to look for:

• Anker 100W or 240W USB‑C cable — reliable, good value.
• Cable Matters 240W USB‑C cable — solid and often USB‑IF certified.
• Belkin 100W/240W USB‑C cable — reputable, usually good quality.
• Apple 240W USB‑C Charge Cable — good for charging, but not high-speed data.
• Thunderbolt 4 cable from Cable Matters, Anker, CalDigit, or Belkin — best if you want charging + display + high-speed data.

My general pick: a 240W USB‑C PD cable from Anker or Cable Matters, around 6 ft / 2 m. It’ll charge most laptops safely and gives you room for future devices.