MWeb uncapped and unshaped fibre, explained
No data cap, no throttling, no prioritising one kind of traffic over another - what 'uncapped' and 'unshaped' really mean on MWeb fibre, and where the LTE exception applies.

In this article(5)
Three words people mix up
"Uncapped", "unshaped" and "unthrottled" get used as if they're the same thing. They're not, and the difference decides whether your line feels fast when you actually use it.
- Uncapped is about quantity: no data limit. You can download a terabyte and nothing cuts off.
- Unshaped is about traffic type: the ISP doesn't slow one kind of traffic to favour another. Your game download isn't deprioritised so someone else's video call goes first.
- Unthrottled is about speed over time: your line isn't slowed once you cross a hidden usage threshold.
A line can be "uncapped" and still feel slow if it's shaped or throttled. That's the catch our guide on whether uncapped fibre is really unlimited digs into.
| Metric | Value | Detail |
|---|---|---|
| Uncapped | No data limit | Never cut off or slowed for total usage |
| Unshaped | No traffic priority | Streaming, gaming, downloads treated equally |
| Unthrottled | No fair-use step-down | Speed doesn't drop after a threshold |
| MWeb Fibre | All three apply | No asterisk on the fibre product |
Where MWeb fibre stands
On fibre, MWeb ticks all three boxes. Its lines are uncapped, and MWeb states there's no traffic prioritisation against streaming or gaming - so the connection isn't shaped, and there's no fair-use throttle quietly slowing you down after a certain point in the month.
In plain terms: the 100 Mbps you pay for is the 100 Mbps you get, whether you're on a Netflix binge, a Steam download or a work video call, at midday or at peak evening. That's the standard most of the big SA ISPs now hold themselves to, and MWeb is among them.
| Behaviour | On MWeb fibre |
|---|---|
| Monthly data limit | None - no cap, no cut-off |
| Streaming vs gaming vs downloads prioritised differently | No - all traffic types treated equally |
| Speed reduced after a usage threshold | No - no fair-use throttle on fibre |
| Speed reduced at peak times (e.g. 8pm) | No - the line runs at its rated speed throughout |
The one place the asterisk lives
The exception is LTE. MWeb's wireless plans are sold as "uncapped" but run on a Fair Use Policy: a large full-speed allowance, then a step down in speed for the rest of the month. That's normal for mobile-network products and it's clearly published, but it's a different promise to fibre.
So if "no asterisks" matters to you, fibre is the one to choose where it's available. We compare the two directly in MWeb LTE vs fibre.
| Claim | MWeb Fibre | MWeb LTE |
|---|---|---|
| Uncapped | Yes - no data limit | Yes, but governed by a Fair Use Policy |
| Unshaped | Yes - no traffic-type prioritisation | Not published as unshaped |
| Unthrottled | Yes - no fair-use speed step-down | No - speed steps down after the FUP allowance |
Why it matters for your household
If your home streams in 4K, games online, backs up to the cloud and runs a few video calls at once, shaping and throttling are exactly the things that ruin the experience at 8pm. An uncapped, unshaped fibre line means you're not rationing usage or planning big downloads for the small hours.
It's also why the headline speed alone doesn't tell the whole story when you compare ISPs. Two 100 Mbps lines at the same price aren't equal if one shapes traffic and the other doesn't.
Does the uncapped/unshaped distinction matter for you?
Work through it in order - most households land on 'yes, it matters' by the second question.
- Q1
Do more than one or two people use the line at once (streaming, gaming, calls, backups)?
- Yes → Shaping and throttling are the two things most likely to ruin peak-time usage - keep reading.
- No, mostly light single-user browsing → Any uncapped line will likely feel fine, but confirm it's still unshaped for video calls.
- Q2
Does your household ever notice slowdowns specifically in the evening?
- Yes → That's the signature of a shaped or fair-use-throttled line, not a raw speed problem.
- No → Your line is behaving as an unshaped, unthrottled connection should.
- Q3
Is the line you're comparing MWeb fibre or MWeb LTE?
Frequently asked questions
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