Logitech SLIM FOLIO PRO Backlit Bluetooth Keyboard Case for iPad Pro 12.9-inch (3rd and 4th gen) - Graphite, got it from amazon, almost new, opened the box but never used. The price on Amazon is $129.99, asking for $80. See the following details:

https://www.amazon.com/gp/product/B086LLNJQX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1