# Multiple HMDI and/or SDI Inputs

Source: https://mimolive.com/user-manual/live-streaming-hardware-kits/hdmi-sdi-inputs/  
Last updated: 2023-03-10  
Section: Live Streaming Hardware Kits  

If you need more than one HDMI or SDI input, we recommend using an external Thunderbolt PCIe expander box and one or more Blackmagic PCI cards.

> **Note:** What about ATEM Mini?
>
> The ATEM mini can only feed one input at a time to the Mac via USB C. This works fine and can be useful in some cases, but limits what you can do with mimoLive. The Expander box/card(s) combo is like the ATEM mini on steroids.

#### Thunderbolt PCIe Expander Boxes:

- [Sonnettech PCIe Card Expansion Systems](https://www.sonnettech.com/product/thunderbolt/pcie-card-expansion-systems.html) (Various desktop enclosures with 1 to 3 slots, 19 inch Rack mount version)
- [OWC Mercury Helios](https://www.owcdigital.com/products/mercury-helios-3s) (1 Slot desktop)

#### Blackmagic Design Cards:

- 4 HDMI inputs – [Blackmagic Design DeckLink Quad HDMI Recorder](https://www.blackmagicdesign.com/products/decklink/techspecs/W-DLK-36)
- 4 SDI in-/outputs – [Blackmagic Design DeckLink Duo 2](https://www.blackmagicdesign.com/products/decklink/techspecs/W-DLK-31)
- 8 SDI in-/outputs – [Blackmagic Design DeckLink Quad 2](https://www.blackmagicdesign.com/products/decklink/techspecs/W-DLK-30) (Note: This card features mini SDI connectors that need adapters and are more delicate)

> **Important:** SDI Key/Fill Playout
>
> If you need SDI key/fill playout, you need to use a Blackmagic device that offers keying capabilities, like the UltraStudio models. See [SDI Playout](https://mimolive.com/user-manual/sdi-playout) for more info.