Book Shelf, 3 Tier Bookshelf 31.49" Width, Book Shelf Storage and Organization, Wooden and Metal Industrial Bookcase, Large Book Shelves for Home Living Room Bedroom Office Storage(Grey)

For the keyboards, I have this keyboard stand with the Minis on the top two shelves and the palm rest on the back. For the mice and a couple of other peripherals, I have this desktop bookshelf. The bookshelf can either be stacked or split into two smaller bookshelves, which is how I have it. I only need one for the mice. Eventually, my desk got too crowded, so I bought this larger bookshelf that sits along the wall behind my desk and holds it all plus a few IKEA storage bins that store USB cables (so many Logi cables!) and other miscellaneous things. The peripherals are closer to the side of my desk so they're easy to access while the storage bins are on the further end where I can get to them by raising my desk and accessing it from underneath.