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home > HDMI™ ARC & S/PDIF Audio Extender - 500ft (cat6)-ARC-EX300-K > HDMI™ ARC & S/PDIF Audio Extender - 500ft (cat6)-ARC-EX300-K
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HDMI™ ARC & S/PDIF Audio Extender - 500ft (cat6)-ARC-EX300-KARC EX300 K: HDMI ARC & S PDIF Audio Extender Up To 150m using CAT 6 7 Key Features: Long Distance Audio Extension Transmits HDMI ARC signals up to 492 ft (150 m) at 96kHz or 295 ft (90 m) at 192kHz over a single CAT cable. S PDIF Audio Extension Extends audio up to 492 ft (150 m) at 96kHz for systems without HDMI ARC. Multi Format Audio Support Compatible with PCM 2. 0ch, Dolby 5. 1ch, and DTS 5. 1ch formats. CEC Pass Through Maintains HDMI device
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ARC-EX300-K: HDMI ARC & S/PDIF Audio Extender Up To 150m using CAT 6/7

Key Features:
  • Long-Distance Audio Extension – Transmits HDMI ARC signals up to 492 ft (150 m) at 96kHz or 295 ft (90 m) at 192kHz over a single CAT cable.

  • S/PDIF Audio Extension – Extends audio up to 492 ft (150 m) at 96kHz for systems without HDMI ARC.

  • Multi-Format Audio Support – Compatible with PCM 2.0ch, Dolby 5.1ch, and DTS 5.1ch formats.

  • CEC Pass-Through – Maintains HDMI device control functions when ARC mode is active.

  • Plug-and-Play Operation – Quick, hassle-free installation with no drivers or setup required.

  • Compact Form Factor – Slim design allows discreet and flexible placement.

  • High-Fidelity Performance – Optimized for ultra-low jitter and stable, high-quality audio transmission.

 The ARC-EX300-K is a compact HDMI ARC and S/PDIF audio extender designed to deliver high-fidelity audio transmission over long distances. Capable of extending HDMI ARC signals up to 492 feet (150 meters) at 96kHz or 295 feet (90 meters) at 192kHz over a single CAT cable, it offers a reliable, plug-and-play solution for routing audio from a TV back to an amplifier, AVR, or multi-room audio system. 

For TVs without an ARC port, the device includes a dedicated S/PDIF audio pass-through channel, transmitting audio from the S/PDIF IN port on the transmitter to the S/PDIF OUT port on the receiver. 

 CEC pass-through is also supported when operating in HDMI ARC mode, allowing seamless control integration between connected devices. With ultra-low jitter and precision-engineered signal design, the ARC-EX300-K ensures uncompromised audio performance in both residential and professional AV installations. 


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  • Extends HDMI ARC signals up to 495 feet (96kHz) or 295 Feet (192kHz)
  • Extends S/PDIF audio signal up to a distance of 150m/495ft (96kHz)
  • CEC pass-through when HDMI ARC mode is enabled

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CONNECTIVITY

Transmitter: INPUT: 1 × S/PDIF [Optical Audio Jack]
1 × HDMI [Type A, 19-pin female]
1 × DC 5V [Micro-USB]
OUTPUT: 1 × CAT OUT [RJ45]
Receiver: INPUT: 1 × CAT IN [RJ45]
1 × DC 5V [Micro-USB]
OUTPUT: 1 × S/PDIF [Optical Audio Jack]
1 × HDMI [Type A, 19-pin female]

PACKAGE CONTENTS

1x Transmitter
1x Receiver
2x USB Cable (USB-A to Micro USB)
2x Power Adapter
User Manual

SUPPORTED CAT CABLES

CAT5e, CAT6, CAT7: We recommend you use shielded CAT6 cables & High-Quality HDMI Cables for optimum performance

EXTENDING DISTANCE

ARC audio: 495Ft - 96kHz / 295 - 192kHz
S/PDIF audio: 495Ft - 96kHz

ADDITIONAL FEATURES

CEC: No
ARC: Yes
USB KVM: No
PoC: No
IR Control: No
Downmix: No
Downscale: No
Over IP: No
HDBaseT: No
RS-232: No

AUDIO SUPPORT

HDMI and Optical Audio Formats: PCM 2.0ch, Dolby 5.1ch, DTS 5.1ch

COMPLIANCES

HDMI Compliance HDMI 2.0
HDCP Compliance HDCP 2.2

POWER

Power Consumption: Transmitter: 0.35W / Receiver: 0.7W
Power Supply: Input: AC 100-240V 50/60Hz
Output: DC 5V/1A

DIMENSIONS & WEIGHT

Transmitter: Length: 90mm / 3.54in
Width: 72mm / 2.84in
Height: 20mm / 0.79n
Weight: 175g / 6.17oz
Receiver: Length: 90mm / 3.54in
Width: 72mm / 2.84in
Height: 20mm / 0.79n
Weight: 175g / 6.17oz

PROPERTIES

Color: Black
Housing: Metal Enclosure
Operation Temperature: 32~104°F / 0~40°C
Storage Temperature: -4~140°F / -20~60°C
Operating Humidity: 20~90% RH (Non-condensing)

WARRANTY

1-Year Manufacturer's Warranty

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[tab1]Visit Our Help Center for FAQs, Troubleshooting and other queries: www.support.orei.com

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HDMI™ ARC & S/PDIF Audio Extender - 500ft (cat6)-ARC-EX300-K

Item no : 75012921703
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US$ 69.99
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