Talk:Hong Kong/@comment-149.88.231.3-20150730201956/@comment-24682153-20150730204717

Cap is maximum rate that you are going to pay in a period of time for data. In HK 2G or 3G data often have a default rate HK$X per MB up to a daily and/or monthly cap. This is the maximum that you are going to pay, even if you are going to consume more data. As you have said, it will stop to debit money from your account, but internet keeps on working "for free". Telcos love to say it's "unlimited". But it must be said that it mostly applies to slow data on 2G or 3G, not 4G. So there is a physical limit due to network speed of how much data you can actually use. But normally, you will not get throttled in speed having reached the cap in HK.