Amazon is showing stock of the Canon EF-EOS R Mount Adapter for $99.99. This item been backordered for a while!
EF-EOS R Mount Adapter In-Stock at Amazon ($99)
See deal archive for:
If you purchase something through a link on our site, we may get a small share of the sale (at no cost to you). Please read our disclosure for more info.
I know amazon is an authorized dealer, but careful, they were shipping grey market (Chineese) versions of these (no warranty), and with an open seal. At least their return policy is good – easy for me to send it back.