Data centre operator Equinix will invest more than US$97 million (A$121 million) to build its fifth data centre in Australia, adding a fourth facility to its Sydney footprint.

The company will stick with its traditional naming convention with the SY4 facility, which it said would address the growing demand for data centre infrastructure in the country.
The addition of the 12,500 square metre SY4 brings Equinix's total Australian investment to nearly US$360 million.
SY4 will be located in Alexandria, close to Equinx's existing SY1, SY2 and SY3 facilities. It will house 3000 cabinets at full build, with an initial 1500 cabinets expected to be complete in the second quarter of next year.
A dense dedicated fibre loop will connect SY4 to its sister facilities in the area.
Equinix just last month announced the planned opening of its fourth Australian facility, the US$60 million, 9800 square metre ME1 data centre at 600 Lorimer Street in Port Melbourne.
ME1 initially offers space for 375 cabinets, with a total of 1500 expected at full build.
The new Australian data centres form part of Equinix's US$227 million (A$291 million) global expansion.
The data centre operator is planning to build new facilities in New York, Singapore, London and Toronto, adding approximately 93,000 square metres to the more than ten million square metres of floor space it currently holds around the world.