How to save ComputeBuffer?

I have a computebuffer that holds non-blittable types that I would like to save in some way. Ideally I would want them to serialize and never release.

 struct Grid{
     float3 vert[15];
     float4 col[15];
     int index;
 };
 RWStructuredBuffer<Grid> pp; 

//in the object script i try this

 [SerializeField]public ComputeBuffer gridBuffer;

The buffer is in a 3D grid type format with a fixed length equaling width*height*length. So I could make 31 seperate buffers representing the data in the struct that way it can be passed back as a blittable type but this solution seems less then ideal.