Minimum Computer & Modem Specifications: Fixed Broadband

To see if your computer is compatible with Optus NBN, Cable or DSL Direct Broadband check out the minimum specifications for various operating systems below.


Supported Windows versions/specifications

Windows 8

CPU: 1 GHz (32 bit) (x86) or higher
RAM: 1 GB (32 bit) or 2 GB (64 bit)
Free disk space: 16 GB (32 bit) or 20 GB (64 bit)
Standard Modem & Wireless Cable Network Device: USB or Ethernet Port
Wireless DSL Network Device: Ethernet Port

Windows 7

CPU: 1 GHz (32 bit) (x86) or higher
RAM: 1 GB (32 bit)
Free Disk Space: 500 MB
Standard Modem & Wireless Cable Network Device: USB or Ethernet Port
Wireless DSL Network Device: Ethernet Port

Windows Vista

CPU: 1 GHz (32 bit) (x86) or higher
RAM: 512 MB or higher
Free Disk Space: 500 MB
Standard Modem & Wireless Cable Network Device: USB or Ethernet Port
Wireless DSL Network Device: Ethernet Port

Windows XP

CPU: Pentium 233 MHz or higher
RAM: 64 MB or higher
Free Disk Space: 500 MB or more
Standard Modem & Wireless Cable Network Device: USB or Ethernet Port
Wireless DSL Network Device: Ethernet Port


Supported Mac OS-X versions/specifications

Mac OS X 10.4 to 10.9

CPU: Power PC G3 or higher
RAM: 256 MB
Free Disk Space: 500 MB
Standard Modem & Wireless Cable Network Device: Ethernet Port
Wireless DSL Network Device: Ethernet Port

Mac OS X 10.0 to 10.3

CPU: Power PC G3 (or higher)
RAM: 128 MB
Free Disk Space: 500 MB
Standard Modem & Wireless Cable Network Device: Ethernet Port
Wireless DSL Network Device: Ethernet Port


BYO ADSL2+ Broadband equipment specs / info

DSL Broadband runs on your standard phone line and a DSL modem and/ filters are supplied as part of a connection package. If you plan to use your own existing ADSL modem or telephone filters, check the list of approved equipment to ensure they're Optus Network approved or contact tech support on 13 13 44. It's recommended that you use an ADSL2+ compliant modem for an Optus Direct ADSL Broadband connection.

We use the Annex A specification on the of Optus Direct Network (ADSL 2+). The Annex M specification is not available.


BYO Optus Cable Broadband equipment specs / info

If you plan to use your own Cable modem or router contact tech support on 13 13 44 to confirm if it's approved for use on our network. It's recommended that you use a DOCSIS 3 compliant modem/router (Minimum DOCSIS 1.1) for your Optus Cable Broadband connection.


Links to other technical settings & support

  • For Optus Supplied Modem / Router Setup & Troubleshooting Manuals - Click here
  • For Fixed & Mobile Broadband Network, IP Addresses & Tech Settings - Click here
  • For Mobile Broadband APNs & Tech Settings - Click here
  • For Mobile Phone SMSC, APNs & Tech Settings - Click here
  • For Assistance With Email Setup - Click here
  • To Troubleshoot Your Email - Click here