Amazon.com : EF-Z2 Auto Focus 0.71x Reducer Speed Booster Lens Adapter Compatible with Canon EF Mount Lens to Nikon Z Mount Mirrorless Camera Z5 Z50 Z6 Z6II Z7 Z7II Zfc : Electronics
Viltrox EF-Z2 Speed Booster Allows Canon EF lenses Used on Nikon Z-mou
Viltrox EF-Z2 Autofocus Speed Booster Adapter Mount Ring with 1/4"-20 – JG Superstore
Viltrox Ef-z2 Auto Focus 0.71x Reducer Speed Booster Lens Adapter For Canon Ef Mount Lens To Nikon Z Mount Cameras Z6 Z7 Z50 - Lens Adapter - AliExpress
New Z-mount adapters - Nikon Rumors
The latest Z-mount lens adapters from Zhong Yi Optics, Shoten, and Techart - Nikon Rumors
Metabones®
The ZY Optics Lens Turbo 2 is a 0.72x speed booster for M42, EF and F mount lenses on Nikon Z bodies
Metabones Nikon G to Nikon Z-Mount Speed Booster Ultra 0.71x Adapter, Matte Black : Electronics - Amazon.com