The Pulse-Eight USB-CEC Adapter connects your PC to the CEC bus in your HDMI setup, allowing your PC and TV to communicate automatically — turning each other on and off, switching inputs, and accepting remote control commands over HDMI.
What's in the Box
| Item | Quantity |
|---|---|
| USB-CEC Adapter | 1 |
| 10 cm HDMI cable | 1 |
| 15 cm USB cable | 1 |
Technical Specification
| Property | Value |
|---|---|
| SKU | P8-USBCECv1 |
| Input | HDMI |
| Output | HDMI |
| Data connection | USB |
| Dimensions | 5 × 2.4 × 1.7 cm |
| Weight | 0.1 kg |
| Material | Plastic |
| Manufactured in | Great Britain by Pulse-Eight |
Key Features
| Feature | Supported |
|---|---|
| HDMI passthrough | ✓ |
| USB powered — no external power supply needed | ✓ |
| Turn TV on / off automatically with PC | ✓ |
| Switch TV to correct input automatically | ✓ |
| Control PC applications using TV remote | ✓ |
| Control AV receiver volume and mode | ✓ |
| 4K@120Hz passthrough | ✗ — see note below |
The USB-CEC Adapter supports up to 4K@60Hz when used inline. At 4K@120Hz the adapter's passthrough cannot handle the required bandwidth. See USB-CEC Adapter — 4K and High Refresh Rate Signal Issues for workarounds.
Supported Operating Systems
| OS | Supported | Notes |
|---|---|---|
| Windows 10 / 11 | ✓ | Full support via libCEC |
| macOS | ✓ | Via Homebrew — not directly supported by Pulse-Eight |
| Linux | ✓ | Via libCEC — community supported |
| Raspberry Pi | ✓ | See Using libcec with a Raspberry Pi |
Getting Started
New to the USB-CEC Adapter? Follow these guides in order:
- Getting Started with the Pulse-Eight USB-CEC Adapter — overview and initial setup
- How to Install libCEC (Windows) — install the required software
- Which TV Power Control Method Should I Use? — choose how you want to control your TV
- Upgrading the Firmware of the CEC Adapter — keep your adapter up to date
Downloads
The full printed quick reference guide is available as a PDF: Pulse-Eight USB CEC Adapter Quick Reference Guide V2.1
Related Articles
- What is the Pulse-Eight CEC Adapter and libcec?
- USB-CEC Adapter — 4K and High Refresh Rate Signal Issues
- What Is the Maximum Supported Resolution of the USB-CEC Adapter?
- CEC Adapter — Turn Your TV On When Your Windows 11 PC Boots Using CEC-Tray
- Intel NUC HDMI-CEC Adapter User Manual
Need help with your USB-CEC Adapter?
Contact Pulse-Eight support with your Windows version and a description of the issue.
UK: 01202 413 610 | US: (858) 748-8250 | support@pulse-eight.com
Contact Pulse-Eight support with your Windows version and a description of the issue.
UK: 01202 413 610 | US: (858) 748-8250 | support@pulse-eight.com