SKU: 91003721047

Simplecom CM423 HDMI Audio Extractor 4K HDMI to HDMI and Optical SPDIF + 3.5mm Stereo

Sale price$66.60 Regular price$74.00
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Simplecom CM423 HDMI Audio Extractor 4K HDMI to HDMI and Optical SPDIF + 3.5mm StereoWe all know HDMI transmits both video and audio through the single cable. This adapter is the ideal solution when we would like to output the audio through an external speaker system with analog or optical input, also when an older audio system without HDMI input. Simplecom CM423 HDMI audio extractor enables a user to extract the embedded audio from an HDMI source and output audio separately on either an analog stereo audio connector or a digital

We all know HDMI transmits both video and audio through the single cable. This adapter is the ideal solution when we would like to output the audio through an external speaker system with analog or optical input, also when an older audio system without HDMI input. Simplecom CM423 HDMI audio extractor enables a user to extract the embedded audio from an HDMI source and output audio separately on either an analog stereo audio connector or a digital optical SPDIF connector. The video stays within the existing HDMI signal and can be sent on to the DVI or HDMI display.  

This little adapter can be placed behind your AV hardware and powered by USB, which can take power from included wall charger or an available USB socket on your TV, Media Player or PC. CM423 meets the HDMI v1.4b standards with 4K x 2K support, which is ideal for home theatre Blu-ray and streaming video content at Ultra HD, as well as 1080p 3D and 2D down to standard-definition.

Features

Convert 1 HDMI input to 1 HDMI + (SPDIF + 3.5mm or R/L) audio output

Ideal solution  for connecting external speaker system with analog or optical input, or older audio system without HDMI input

Powered by USB (5V/500ma), Mini USB Power Cable and Wall Changer included

Simultaneous audio output to both audio outputs (HDMI Audio Splitter)

HDMI 1.4 Compliant and supports Ultra HD 4K x 2K Resolution

Supports compressed audio such as DTS Digital / Dolby Digital and uncompressed LPCM audio

Specifications

Input: 1x HDMI Input

Audio Outputs: 1x SPDIF (Optical), and 1 x 3.5mm Stereo Audio (Analog)

Video Output: 1x HDMI output (HDMI pass-through)

HDMI resolution support: 2160p @ 30Hz / 1080p @ 50/60 Hz / 1080i / 720p /1576i / 480p / 480i

Max Bandwidth: 340 MHz

Max Baud Rate: 10.2 Gbps

Input/Output TMDS signal: 0.5~1.5Volts p-p (TTL)

Input/Output DDC signal: 5Volts p-p (TTL)

Max working current: 500mA

HDMI 1.4b compliant

HDCP 1.4 compliant

Dimension: 60 x 54 x 20mm (LxWxH)

Package Contents

1x HDMI Audio Extractor

1x 0.5M HDMI Lead

1x USB Power cable

1x 3.5mm to 2RCA(R/L) Adapter

1x USB Wall Charger

1x User Manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91003721047

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4.9 ★★★★★
Based on 14 reviews
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Verified Purchase
Nabeel Shukri
Whiting, US
★★★★★ 5
Clean Look and Very Comfortable
Size: 10, Color: White/Navy Pp
Great everyday sneakers. They look clean, stylish, and go well with almost anything. The fit was true to size, and they’re surprisingly comfortable for daily wear. Quality feels solid, especially for the price. Definitely a good casual shoe option.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
O
Verified Purchase
Omar
Whiting, US
★★★★★ 5
A Ralph Lauren Classic
Size: 11, Color: White/Navy Pp, Size: 11, Color: White/Navy Pp
Pros: Classic, Clean Look, Smooth Leather, Ralph Lauren Quality Cons: Very Long Laces *Added elastic laces for a cleaner minimalist look.
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Reviewed in the United States on March 8, 2026
N
Verified Purchase
Natasha
Boise, US
★★★★★ 5
Polo Ralph Lauren ❤️
Size: 14, Color: Hunter Navy Multi
I Bought this for my husband and he loves them he saids there comfortable and they fit really nice the thickness of the shoes are so nice and always but the one size bigger.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
M
Verified Purchase
MS. REGINA 🌸
Lexington, US
★★★★★ 5
ABSOLUTELY FANTASTIC! SHOE 💯❤️
Very stylish canvas design with that Polo flare & logo.. I dressed these up casually with a midi skirt & top & down with denim Capri pants and a cute top and multiple times these sneakers never disappointed.. Im a women's sz 9-10 and ordered both sz 8 & 8.5 too make sure the fit was comfortable and they are a true sz fit for a women's sz 9 & 9.5/10. They're easy to slide into, cost is budget friendly and shipping/delivery was super fast. I highly recommend these sneakers if you're looking to step out jazzy casual 🫶🏿❤️ I'm really happy with my purchase I had to order more😁... Seller is⭐️⭐️⭐️⭐️⭐️Highly Recommended Thank you kindly 🌹
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Reviewed in the United States on July 5, 2025
E
Verified Purchase
Erik A.
Port Orchard, US
★★★★★ 4
Very good looking shoes
Size: 11, Color: Black/Black
I really like the way these shoes look. They look different yet “well known”, as in, these are regular flat shoes but with a very unique design that make them seem neat and “basic” yet different and stylish. I personally loved them. However, I don’t really understand how so many reviews call these “comfortable”. They are very well made, yes. These definitely promise to last. On the other hand; the fabric feels rather sturdy or rigid. They fit perfectly. For me personally, I have rather narrow feet and these may feel a tad loose, which does not help at all. My feet feel sore after walking on them for some hours and also they feel rather heavy too? I mean, these shoes are inexplicably heavy. Either way 10/10 in style 6/10 comfort
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Reviewed in the United States on October 28, 2022

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