The product itself has been discontinued. Hard to find anywhere else, but shops that still sell them are selling them around $400 - $500 each. I looked at this lat week and I think the clearance price was $99. Now it's $75. Can use standalone or via controller.
Description below copied from Officeworks website
This D-Link DWL-6610AP Access Point is perfect for use in small to medium businesses so you can provide a large, reliable wireless network. It supports Power over Ethernet so you don't have to worry about an external power source, plus it can be mounted to walls or ceilings allowing you to find the perfect spot that suits your space. It features dual-band functionality to reduce network lag and uses a 2 x 2 antenna for enhanced combined speeds.
-The access point can be connected to your existing wired network to provide wireless access for your employees and visitors.
-This access point supports AC1200 speeds.
-It supports dual-band connectivity so you can enjoy less lag as the 2.4 GHz and 5 GHz band can be used simultaneously.
-Beamforming technology will help to provide a large wireless range.
-There is an Ethernet port for you to get setup with your wired network right away.
-It's easy to setup and maintain your network using the D-Link controller.
out of stock everywhere
tried 2000 3000 4000 area codes