Amazon.com: Rock Band 4 Bundle with Legacy Game Controller Adapter - Xbox One : Everything Else
Review: Rock Band Wired Legacy Adapter – Destructoid
Rock Band 4 and Legacy Game Controller Adapter Standard Edition Xbox One RB491903 - Best Buy
Harmonix Blog: Rock Band Rivals Announced, Plus Fender™ Jaguar™ Guitar Controller Revealed
Rock Band on Twitter: "Get the Legacy Adapter for only $15 to use your Xbox 360 instrument controllers on Xbox One. https://t.co/gMltHHLjak https://t.co/AJqTZInD0V" / Twitter
Amazon.com: Rock Band 4 - Legacy Game Controller Adapter for Xbox One : Video Games
Review: Rock Band Wired Legacy Adapter – Destructoid
Wired Legacy Adapter arrived today! : r/Rockband
Amazon.com: Rock Band 4 - Legacy Game Controller Adapter for Xbox One : Video Games