Can I Add More Inputs and Outputs Later?
Not on the same chassis — matrix switchers are fixed-size hardware, so “expanding” in practice means adding a second unit or moving up to a larger one, not adding ports to what you already own.
Key takeaways
- Individual matrix switchers are not modular — you cannot add ports to an existing chassis.
- “Expanding” means adding a second matrix or replacing with a larger one.
- Sizing with headroom from the start (see our sizing guide) avoids this problem for years.
- A multiviewer/matrix combo like the MMV1630 can absorb some growth without a second dedicated matrix.
The honest limitation
An 8×8 matrix cannot become a 12×12 by adding cards or modules — each unit is a fixed 8×8 (or 16×16, etc.) chassis. This is true across the industry, not specific to any one brand.
What “expanding later” actually looks like
In practice, teams either add a second matrix alongside the first (routing between them manually or via control software), or replace the smaller unit with a larger one and repurpose or resell the original. Neither is as convenient as true modular expansion, which is exactly why sizing correctly at purchase time (see our sizing guide) matters so much.
A practical middle ground
If your growth is mainly in the number of sources you want to preview or monitor rather than route, the MMV1630 combines a 16-channel multiviewer with a full 16×16 matrix, giving more practical headroom in one box than a smaller dedicated matrix would.
Not sure which model fits your channel count and budget? Our team can size a system for you.