Buying a 140W+ USB-C cable for a charger that only delivers 100W feels like paying for headroom you cannot use yet, and today, you would be right. The case for it anyway has nothing to do with your current charger and everything to do with the one that eventually replaces it.
Quick Answer
Today it changes nothing, because the 100W charger remains the ceiling and the cable simply idles beneath it. The case for buying it anyway is that a cable outlasts chargers and laptops, and at R399 the Anker 544 costs little more than a 100W-only cable would.
💡 Right now, the extra rating sits unused
A charger rated at 100W is the ceiling on the connection regardless of what the cable itself can carry, so a 140W-rated cable delivers exactly the same charging speed as a 100W-rated one until the charger itself changes. There is no visible or measurable benefit today from the higher figure; the negotiation between charger, cable and laptop simply settles at whatever the charger's own rating allows.
🔮 Why the extra rating is worth having anyway
Cables tend to get moved between devices and outlast the chargers they started life with, routed through a bag or left plugged in at a desk for years at a stretch. If a 140W charger or a more demanding laptop is even a plausible future purchase, buying the higher-rated cable today spares you from sourcing a matching one on top of that later purchase. Given how close the price sits between a 100W-only cable and a 140W-capable one, this is a low-cost way to remove a future step.
💰 What buying ahead actually costs
At R399, the comprehensive cable range's Anker 544 sits close enough to what a basic 100W cable would cost that the difference is easy to justify against the convenience of never needing to check the cable again after a charger upgrade. Check your current charger's own rating first, since that confirms today's charging speed regardless of which cable you choose, and our accessories range is worth a look if a charger upgrade is part of the same purchase.
Frequently Asked Questions
Will a 140W cable overload my 100W charger?
No. The charger's own rating sets the ceiling regardless of what the cable can carry, so a higher-rated cable never forces more power out of a lower-rated charger.
Does a 140W cable charge my laptop faster than a 100W one on the same charger?
No, since the charger itself is the limiting factor here. Both cables deliver identical charging speed until the charger's own rating changes.
Is there any downside to buying a 140W cable ahead of needing it?
Only a small difference in price compared with a basic 100W cable, which is minor relative to the convenience of not needing a second purchase later.
Should I replace my charger and cable together or separately?
Either order works, since the charger, cable and laptop always renegotiate their power level the moment they connect. Buying the cable first simply means it is sitting ready the moment a higher-wattage charger eventually arrives.
Ready to future-proof your charging setup for a small difference in price?
Buy to 140W now, even if your charger has not caught up yet.