This article describes how to connect BNC video output to an Elo HDMI display input.

To connect a BNC video output (likely analog composite video or SDI) from your computer to an HDMI display, you’ll need a video converter—not just a cable—because you're dealing with two different signal types. Here's how to do it depending on the type of BNC output:

Step 1: Identify Your BNC Output Type

Is it composite or SDI?

• Composite (CVBS) – Single yellow BNC jack, analog signal, common in older hardware.

• SDI (Serial Digital Interface) – Professional digital signal, often marked HD-SDI, 3G-SDI, etc.

Step 2: Choose the Right Converter

🔸 If BNC is Composite (Analog):

• Get a composite (RCA/BNC) to HDMI converter.

• Example: B08L83Y6KP

• Power required via USB or AC adapter.

✅ Sample setup:

Computer (BNC video out)
        ↓ BNC to RCA adapter
B08L83Y6KP converter (RCA in → HDMI out)
        ↓
HDMI cable to monitor

🔸 If BNC is SDI (Digital):

• Get an SDI to HDMI converter.

• Example: BLCMCSH3WPSU

• Look for models supporting the SDI format your computer outputs (SD-SDI, HD-SDI, 3G-SDI).

• Power required.

✅ Sample setup:

Computer (BNC SDI out)
        ↓ SDI cable
SDI to HDMI converter
        ↓
HDMI cable to monitor

📝 Notes:

• No passive cable will work — these signal types are incompatible without active conversion.

• Check resolution compatibility. Some converters max out at 1080p.

• Cheap AV2HDMI boxes may introduce lag or poor image quality—invest a little more for reliability if using frequently.

See related articles:

• Does Elo manufacture any monitors that use BNC connections for video?
• Are there any Elo products that have RCA video/audio connections?