01 · Source
26 documented inputs
¼-inch TS + XLR female
- Arrives as
- 26 documented inputs
- Connector
- ¼-inch TS + XLR female
- Signal
- analog audio
Audio Interface
Focusrite ISA C8X
Focusrite ISA C8X USB-C Audio Interface. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 2323 destination connections
- Documented inputs
- 26Based on documented inputs
- Rack space
- 2UBuilder checks available rail space
- Power draw
- UnverifiedPower requirement is not verified in the catalog
- Catalog estimate
- ~$2,299.99Use retailer rows for current price and stock
01 · What it does—and what that changes in your rig.
Product overview
Start with the payoff, then work through how it functions, where it fits, and the details that change a real build.
The payoff
Audio Interface decisions, organized around the whole rig.
Focusrite ISA C8X USB-C Audio Interface. Plan its source-defined physical connections and placement in your rig.
- Documented outputs
- 2323 destination connections
- Documented inputs
- 26Based on documented inputs
- Rack space
- 2UBuilder checks available rail space
02 · Know the whole path before you buy.
Signal path
Learn the route as a block diagram: source, product function, transport, and destination. Select any block to see what enters, what changes, and what leaves.
Interactive block diagramAuto-looping · hover, focus, or tap to hold a stage
Port-type signalProduct functionSystem boundary
Follow one signal from source to destination
01 · Source · selectedEach block answers the same three questions: what arrives, what changes here, and what leaves.
03 · What this product asks of the rest of the system.
Compatibility
Treat connector names as the start of the check—not the answer. These are the boundaries that determine a complete working path.
Best fit · Audio Interface
Use it when 2U and 325 mm of depth fit the case.
Plan the companion path
Complete the path with upstream and downstream gear that matches connector, direction, signal type, protocol, and wiring standard.
Connector boundary
Documented connectors: ¼-inch TS, ¼-inch TRS, XLR female, XLR male. Match connector, direction, and signal type—not shape alone.
04 · Every connector, grouped by job.
I/O ports
Switch the product view and the documented port inventory updates with it—hardware and data stay side by side.
Every connector, grouped by job.
Switch panels to keep the hardware view and the documented port list in sync.
| Port | Panel | Connector | Direction | Signal | Channels |
|---|---|---|---|---|---|
| ISA INSTRUMENT INPUT 1 · TS | front | ¼-inch TS | input | analog audio | — |
| ISA INSTRUMENT INPUT 2 · TS | front | ¼-inch TS | input | analog audio | — |
| HEADPHONES 1 · STEREO TRS | front | ¼-inch TRS | output | analog audio | — |
| HEADPHONES 2 · STEREO TRS | front | ¼-inch TRS | output | analog audio | — |
| MIC INPUT 8 | rear | XLR female | input | analog audio | — |
| LINE INPUT 8 | rear | ¼-inch TRS | input | analog audio | — |
| MIC INPUT 7 | rear | XLR female | input | analog audio | — |
| LINE INPUT 7 | rear | ¼-inch TRS | input | analog audio | — |
| MIC INPUT 6 | rear | XLR female | input | analog audio | — |
| LINE INPUT 6 | rear | ¼-inch TRS | input | analog audio | — |
| MIC INPUT 5 | rear | XLR female | input | analog audio | — |
| LINE INPUT 5 | rear | ¼-inch TRS | input | analog audio | — |
| MIC INPUT 4 | rear | XLR female | input | analog audio | — |
| LINE INPUT 4 | rear | ¼-inch TRS | input | analog audio | — |
| MIC INPUT 3 | rear | XLR female | input | analog audio | — |
| LINE INPUT 3 | rear | ¼-inch TRS | input | analog audio | — |
| ISA MIC INPUT 2 | rear | XLR female | input | analog audio | — |
| ISA LINE INPUT 2 | rear | ¼-inch TRS | input | analog audio | — |
| ISA MIC INPUT 1 | rear | XLR female | input | analog audio | — |
| ISA LINE INPUT 1 | rear | ¼-inch TRS | input | analog audio | — |
| LINE OUTPUT 11 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 12 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 9 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 10 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 7 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 8 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 5 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 6 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 3 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 4 | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 2 · TRS | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 2 · XLR | rear | XLR male | output | analog audio | — |
| LINE OUTPUT 1 · TRS | rear | ¼-inch TRS | output | analog audio | — |
| LINE OUTPUT 1 · XLR | rear | XLR male | output | analog audio | — |
| ISA 2 INSERT SEND · TRS | rear | ¼-inch TRS | output | analog audio | — |
| ISA 2 INSERT RETURN · TRS | rear | ¼-inch TRS | input | analog audio | — |
| ISA 1 INSERT SEND · TRS | rear | ¼-inch TRS | output | analog audio | — |
| ISA 1 INSERT RETURN · TRS | rear | ¼-inch TRS | input | analog audio | — |
| AC POWER INPUT · IEC | rear | IEC C14 | input | power | — |
| USB-C · HOST AUDIO / DATA | rear | usb c | bidirectional | data | — |
| WORD CLOCK OUT | rear | bnc | output | data | — |
| WORD CLOCK IN | rear | bnc | input | data | — |
| S/PDIF OUT | rear | rca | output | data | — |
| S/PDIF IN | rear | rca | input | data | — |
| MIDI OUT | rear | midi din5 | output | data | — |
| MIDI IN | rear | midi din5 | input | data | — |
| OPTICAL OUT 2 · ADAT / S/PDIF | rear | toslink | output | data | — |
| OPTICAL OUT 1 · ADAT / S/PDIF | rear | toslink | output | data | — |
| OPTICAL IN 2 · ADAT / S/PDIF | rear | toslink | input | data | — |
| OPTICAL IN 1 · ADAT / S/PDIF | rear | toslink | input | data | — |
Showing 50 of 50 documented physical ports. Scroll to review the remaining rows.
05 · Compare the decision, not just the price.
Alternatives
The rows are organized around fit, power, I/O, and system role so a cheaper unit cannot hide a more expensive workflow.
| Compare |  |  | ||
|---|---|---|---|---|
| Fit | 📐 2U | 📐 1U | 📐 1U | 📐 1U |
| Power | ⚡ Unverified | ⚡ 30W | ⚡ Unverified | ⚡ 30W |
| Weight | ⚖️ 12.3 lb | ⚖️ 9.1 lb | ⚖️ 7.3 lb | ⚖️ 6.4 lb |
| I/O | 🔌 50 | 🔌 24 | 🔌 33 | 🔌 13 |
| Estimate | 💵 ~$2,299.99 | 💵 ~$899.99 | 💵 ~$769.99 | 💵 ~$2,495 |
| Deep dive | Current selection | Full comparison → | Full comparison → | Full comparison → |
06 · Resolve the questions that can change the purchase or build plan.
Planning questions
Short, source-backed answers surface rack fit, power, cabling, and connection details before they become surprises.
How will the Focusrite ISA C8X affect rack fit and case depth?
It occupies 2U. Its documented depth is 325 mm.
How much power does the Focusrite ISA C8X draw?
Its power requirement is not yet verified in the catalog.
What connections does the Focusrite ISA C8X have?
50 documented physical ports, including ISA INSTRUMENT INPUT 1 · TS, ISA INSTRUMENT INPUT 2 · TS, HEADPHONES 1 · STEREO TRS, HEADPHONES 2 · STEREO TRS, MIC INPUT 8, LINE INPUT 8.
07 · See this unit inside a real rack plan.
Builder preview
Placement is only the start. Builder checks space · depth · weight, power headroom, dependencies, and compatible signal paths around this exact catalog item.Open in Builder08 · Related gear, in the order you may need it.
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