# 对象存储 **NOTICE: Experimental Preview** The Object Store is very similar to the Key Value Store in that you put and get data using a key. The difference being that in the Key Value store the Value is a message and therefore limited in size (to 1Mb by default), while the Object store allows for the storage of objects that can be of any size. The Object Store implements a chunking mechanism, allowing you to for example store and retrieve files (i.e. the object) of any size by associating them with a path and a file name (i.e. the key). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.natsclub.cn/cn/nats-gai-nian/jetstream/obj_store.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.