Corsair is now letting people pre-order the brackets for the AM4 boards.
Use coupon code CORSAIRAM4BR and it’ll be free.
Note : You MUST register for a corsair account for the code to work.
Yes shipping is free.
Note 2: You will get an email saying your order status is "on hold, pending further review." I called them and they said that nothing is wrong with the order, the reason that it is on hold is because this is a pre-order (as of date of post) and it’ll be shipped out on March 2nd.