Complex sentence: The network is very popular; with 450,000 unique users and over 1 million devices connecting to the Links in an average week, the Links had been used a total of more than 21 million times.
Split into simpler sentences: The network is very popular, with 450,000 unique users and over 1 million devices connecting to the Links in an average week. The Links had been used a total of more than 21 million times.