Based on this product's specifications, here are some alternatives and similar models
Flatbed scanner conversion kit Epson B12B819011FD for WorkForce DS-530II DS-770II DS-870 DS-970
Summary description:
Conversion kit for turning compatible Epson WorkForce sheet-fed scanners (models DS-530II, DS-770II, DS-870, DS-970) into a flatbed-style scanning solution. Includes parts designed to enable scanning of books, delicate originals and irregular media that cannot pass through an ADF. Useful in offices, libraries and print shops where occasional flatbed capability is required alongside high-speed document scanning.