Broadband Adapter

The Broadband Adapter

The Broadband Adapter, often shortened to BBA, is an official Ethernet add-on that plugs into the bottom serial port of a GameCube. It was sold for a handful of online-enabled games, but in the homebrew era it has found a second life as a fast, reliable data pipe.

Original purpose

A small number of titles supported online or LAN play through the adapter, most famously a certain monster-hunting series and a few sports and racing games. Outside those, the BBA sat unused for years.

What homebrew does with it

• Network booting: Swiss can load games and apps straight from a PC over the network, no SD card needed.
• File transfer: move backups and saves between console and computer at Ethernet speeds.
• LAN play: link consoles for the games that natively support it.

Models and compatibility

The genuine adapter is the safest choice and slots into the bottom serial port. Note that it occupies the same port as an SD2SP2, so you cannot use both at once; pick the workflow you need for a given session. Modern clone adapters exist but vary in quality.