There is no single product named "Xbox Live Adaptor". You likely mean one of three distinct devices:
| Device | Console | Function | Status |
|---|---|---|---|
| Xbox Live Starter Kit / Broadband Adapter | Original Xbox (2002) | Ethernet port (RJ45) + setup disc. Required for Xbox Live on launch hardware. | Discontinued. Built-in on later Xbox (1.6). |
| Xbox 360 Wireless Network Adapter (Black "N" / White "G") | Xbox 360 | USB Wi-Fi dongle (802.11a/b/g/n). Connects to 2.4/5 GHz. | Discontinued. Use Ethernet or Powerline. |
| Xbox Wireless Adapter for Windows (White dongle) | Windows 10/11 PC | Connects up to 8 Xbox Wireless Controllers / Headsets to PC via proprietary 2.4 GHz (not Bluetooth). | Current. $25 MSRP. |
Identify your console and goal (connect console to internet, or connect controller to PC) for the right hardware.