Focusrite Scarlet 18i20 (3rd Gen)
The Focusrite Scarlet 18i20 (3rd Gen) has 10 inputs and 13 outputs: 20 × Analog Audio, 2 × Ethernet, 1 × USB.
Inputs and outputs
Analog Audio (20)
| Port | Direction | Connector |
|---|---|---|
| In 1 Front | In | XLR 3-Pin |
| In 2 Front | In | XLR 3-Pin |
| In 3 combo | In | XLR 3-Pin |
| In 4 combo | In | XLR 3-Pin |
| In 5 combo | In | XLR 3-Pin |
| In 6 combo | In | XLR 3-Pin |
| In 7 combo | In | XLR 3-Pin |
| In 8 combo | In | XLR 3-Pin |
| Out 1 | Out | XLR 3-Pin |
| Out 2 | Out | XLR 3-Pin |
| Out 3 | Out | XLR 3-Pin |
| Out 4 | Out | XLR 3-Pin |
| Out 5 | Out | XLR 3-Pin |
| Out 6 | Out | XLR 3-Pin |
| Out 7 | Out | XLR 3-Pin |
| Out 8 | Out | XLR 3-Pin |
| Out 9 | Out | XLR 3-Pin |
| Out 10 | Out | XLR 3-Pin |
| Out Headphone 7/8 | Out | XLR 3-Pin |
| Out Headphone 9/10 | Out | XLR 3-Pin |
Ethernet (2)
| Port | Direction | Connector |
|---|---|---|
| In 9 ADAT optical | In | LC Fiber |
| In 10 ADAT optical | In | LC Fiber |
USB (1)
| Port | Direction | Connector |
|---|---|---|
| USB | Out | USB-A |
Specs
- Category
- Audio
What it connects to
- Analog Audio in: 1,158 devices in the library can feed it.
- Analog Audio out: 1,152 devices in the library take it as an input.
- USB out: 771 devices in the library take it as an input.
- Ethernet in: 498 devices in the library can feed it.
Use the Focusrite Scarlet 18i20 (3rd Gen) in a diagram
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Related devices
Port data from the Patchify gear library, last updated 25 January 2026. Report a correction