From Amazon
Elgato Light Strip Connector Set - Customise your Lighting in Gaming, Streaming and Home Setups with a T-Connector, Corners, Extension Cables, and more, compatible with Elgato Light Strip
ShopBetter24
LED strips Elgato 10LAF9901 White Multicolour F 6500 K
Shopaide
LED strips Elgato 10LAF9901 White Multicolour F 6500 K