Datto’s engineering team and power users often share enhanced stencils in the Datto Community (community.datto.com). Search for threads titled "Visio Stencils Updated." Some users have uploaded GitHub repositories containing .vssx files that have been manually traced from actual device photos for perfect fidelity.
Do not just drop a stencil and move on. Use Visio layers to create interactive, high-fidelity diagrams: datto visio stencils extra quality
If you cannot find an existing stencil, you can create extra quality assets yourself: Datto’s engineering team and power users often share