Based on this product's specifications, here are some alternatives and similar models
Laptop bottom base Dell 0CKCH carbon fiber replacement part
Summary description:
Replacement bottom base for Dell laptops, model 0CKCH, made from carbon fiber. Designed to serve as a structural lower chassis component, it provides a lightweight and rigid foundation for internal components and helps protect the device from external damage. Suitable for servicing or refurbishing compatible Dell models; installation requires basic disassembly and proper screw alignment.