eSynic

eSynic Portable Optical to 3.5mm Adapter-7 FT Long-192KHz DAC Converter-Metal Shell-Built in DAC Chip-Easy to Setup-For HDTV/Blu-Ray/Gaming Console to 3.5MM Audio Speaker & Headphone-Not Bidirectional

Name: eSynic Portable Optical to 3.5mm Adapter-7 FT Long-192KHz DAC Converter-Metal Shell-Built in DAC Chip-Easy to Setup-For HDTV/Blu-Ray/Gaming Console
Brand: eSynic
SKU: B0F8Q69CDS
Price: 12.89 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$12.89

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🛒 See live eBay price Also on Amazon → Compare to similar display & crt accessories

*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: The eSynic Portable Optical to 3.5mm Adapter-7 FT Long-192KHz DAC Converter-Metal Shell-Built in DAC Chip-Easy to Setup-For HDTV/Blu-Ray/Gaming Console to 3.5MM Audio Speaker & Headphone-Not Bidirectional is a niche pick — read recent reviews before buying in the display & crt accessories category, priced around $12.89. Compare close alternatives before committing.

SpecPicks Verdict

SpecPicks scored eSynic Portable Optical to 3.5mm Adapter-7 FT Long-192KHz DAC… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the display & crt accessories category. eSynic's display & crt accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for display & crt accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by eSynic's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

🎧【192kHz Hi-Res Audio - Studio-Grade Clarity】----:Our eSynic Professional 192KHZ optical to 3.5mm Converter Can Unlock CD-quality sound (24-bit/192kHz PCM) from your TV/gaming console! Our DAC Converter 105dB SNR and -90dB THD - hearing subtle details like guitar picks and breath sounds that cheap converters miss.
📺【Universal Plug & Play - Works in 30 Sec】-----:Our eSynic Optical to AUX Converter Just Plug optical cable (included) to your HDTV/PS5 Input then Connect 3.5mm (included) to speakers/ TV Wireless headphones. Enjoy zero-lag audio - no drivers or apps needed Auto-detects 32-192kHz signals - works with Roku/Fire TV/Switch!
🔇【Smart Noise Cancellation - Dead Silent】----:Hate hissing between songs? Our eSynic Digital to Analog Audio Converter With auto-muting chip: Eliminates background static when idle Blocks HDMI handshake noise 94dB channel separation for crystal stereo imaging. Finally, silence when pausing Netflix!"
🛡️【Durable-Grade Shielding - No Interference】---:Our eSynic Portable clean audio Optical to 3.5MM Adapter With Aluminium Alloy armor + advanced circuitry prevents: Ground loop hum from power sources Signal degradation in long cable runs0Perfect for crowded entertainment centers
👆 + 🎯 [Pay More Attentions]---:Our DAC Converter only supports PCM audio format output and does not support Dolby (it is not compatible with 5.1-channel signals such as Dolby AC3. Remember Please set the audio output to PCM for use first). It only supports optical input and 3.5MM output. It does not support mutual conversion or RCA output. When there is noise, it is recommended to use a power supply of 5V 1A.
⚠️ 【Important Compatibility Guide】Key Limitations to Ensure Proper Setup----:① Audio Format: Supports PCM 2.0 ONLY (NOT compatible with Dolby/DTS 5.1/7.1)② Direction: Optical → RCA conversion ONLY (not bidirectional)③ Volume Control: Adjust output volume through your speaker/amplifier, NOT via TV remote④ Power: Requires 5V/1A USB power adapter (not included)⑤ Device Check: Confirm your source device can output PCM audio before purchase

Full Specifications

Brand	eSynic
Model	ESY321
Interface	Optical
Part Number	RINESY321
Connectivity	Wireless, USB
Compatibility	PS5, Switch
Material Type	Aluminum Glass
Mounting Type	Handheld/Desktop
Number of Pins	7
Connection Type	Wireless
Number of Items	1
Compatible Devices	HDTVs/Gaming Consoles/DVD/Set top box/Blu-Ray to 3.5mm Audio Equipment
Number of Channels	2
Included Components	1x 192kHz DAC Converter, 1 x User Manual ,1 x USB Power Cable
Maximum Supply Voltage	5 volts_of_direct_current
Minimum Supply Voltage	5 volts_of_direct_current

Ready to buy?

eSynic Portable Optical to 3.5mm Adapter-7 FT Long-192KHz DAC Converter-Metal Shell-Built in DAC Chip-Easy to Setup-For HDTV/Blu-Ray/Gaming Console to 3.5MM Audio Speaker & Headphone-Not Bidirectional is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Price and availability subject to change.