Greetings from the Roku Community, @jkcrouch.
Thanks for sharing this question here! Please be advised that there is no difference between the two. Roku uses 4850R as this product's Universal Stock Keeping Unit (USK). However, out-partner retailers use their own Stock Keeping Units (SKUs), such as 4850RW, to uniquely identify and track products. Retailers use SKUs to efficiently manage inventory, retrieve purchases from the stockroom, organize merchandise, and categorize items.
Hope this helps clarify. Happy Streaming!💜
Cheers,
Emman
Emmanuel-D.
Roku Community Moderator