Av Access 4KEX40-eARC 4K HDMI Extender with eARC & ARC, HDBaseT 3.0 Extender w/ 2-Way IR, CEC & PoC, Ideal for Home Theater
A cinema connection with a proper return path.
Place the source equipment where it belongs and keep the viewing area uncluttered. 4KEX40-eARC carries HDMI video and embedded audio between a matched transmitter and receiver over Cat6a / Cat7, making longer installed connections easier to plan.
4KEX40-eARC
Know what connects where.
Connection overview. Check the requirements below for the exact ports, cable type and supported operating mode.
Bring the picture to the right place
Use the transmitter beside the source and the receiver beside the remote display. The specified video limit is 4K60, 4:4:4; distance depends on cable type and the selected signal. Up to 40m is the relevant planning limit for this model.
Keep the remote end useful
HDBaseT 3.0 carries uncompressed 4K video while eARC returns supported multichannel sound from the TV to the audio system. Compatible equipment can carry Dolby Atmos, DTS:X and up to eight-channel 192kHz PCM through eARC.
Plan the cable and power together
Use Cat6a / Cat7. The supplied 12V/2A adapter powers both units through bidirectional PoC. Test the complete link, including short video cables at each end, before pulling cable through walls or securing equipment.
Make sure it fits your setup.
The correct cable
Cat6a / Cat7. Use a properly terminated, continuous run within the documented distance.
Direct link required
Connect the labelled extender ports directly to one another. An RJ45 connector does not make this link compatible with a normal Ethernet switch.
eARC on both ends
Use the TV’s eARC HDMI port and an eARC-compatible AVR or soundbar connection. Ordinary ARC has lower audio-format limits. This is a 4K60 extender, not a 4K120/8K link.
From unboxing to connected.
Plan the link
Match the cable type, total length and required resolution to this model’s limits.
Connect both ends
Put the transmitter at the source and the receiver at the display or USB devices.
Power the kit
Use the power connection specified for this model; then check the link indicators.
Test before installing
Confirm video, sound and any USB/control functions before securing the cable run.
4KEX40-eARC at a glance.
| Model | 4KEX40-eARC |
|---|---|
| Maximum video | 4K60, 4:4:4 |
| Transmission range | Up to 40m |
| Link medium | Cat6a / Cat7 |
| Topology | Point-to-point transmitter + receiver |
| Power arrangement | The supplied 12V/2A adapter powers both units through bidirectional PoC. |
| Additional functions | HDBaseT 3.0 carries uncompressed 4K video while eARC returns supported multichannel sound from the TV to the audio system. Compatible equipment can carry Dolby Atmos, DTS:X and up to eight-channel 192kHz PCM through eARC. |
| Transport | HDBaseT 3.0 |
| HDMI bandwidth | 18Gbps |
| HDCP | 2.3 |
| Return audio | eARC and ARC |
| HDR | HDR10, HDR10+, HLG and Dolby Vision with compatible devices |
| Control | IR and CEC |
A little clarity before you buy.
Can I connect it through a network switch?
No. This model needs the specified direct link between its transmitter and receiver. Choose a documented AV-over-IP model for switched-network distribution.
Is the maximum distance the same at every resolution?
Up to 40m. Follow the model documentation for cable category and signal-specific limits.
What should I check if there is no picture?
Check input/output direction, power indicators and cable termination. Try a lower source resolution and a short known-good link before testing the installed run.
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