Optimal Shop

USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio S/PDIF for PC -Blue

Name: USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio S/PDIF for PC -Blue
Brand: Optimal Shop
SKU: B00Q4WQ7XW
Price: 17.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-20

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 →

$17.99

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*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.

Bottom line: The USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio S/PDIF for PC -Blue is a specs-and-price decision rather than a crowd-consensus one in the sound cards category, priced around $17.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ Backed by Optimal Shop'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

After the fiber output must be AC3 / DTS decoder, or built-in AC3 / DTS decoder amplifier and the like:Use 1: computer connection 5.1 channel speaker. If the speaker audio input for the 3.5mm stereo interface, you need three 3.5mm stereo audio cable connection; such as audio and audio input for the RCA Lotus head, you need three 3.5mm to the Lot the sound cable access to the computer installed after the drive, then the audio cable can be connected. In terms of software, it is recommended to use the ultimate decoding or perfect decoding, as well as KMP and so on. Use 2: in the final decoding…

SpecPicks Verdict

SpecPicks scored USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the sound cards category. Optimal Shop's sound cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for sound cards 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.

Key Features

USB 6 Channel 5.1 External Sound Audio Card for PC Laptop OS support: win98 / XP / 2000 / Vista / Win7/8.External sound card USB 6 channel 5.1 audio. Record & play back digital and analog audio without sound card in your computer.
USB sound is and USB audio controller. It supports 32KBz, 44.1khz. (which two need driver or application software support) and 48Khz sampling rate in digital recording, 48KHz sampling in digital nalog audio playback.In digital playback mode, itreceives audio stream form PC via USB interface and transmits audio data according to the AESEBU, IEC60958, SPDIF cnsumer interface standards. Only R L channel PCM audio in 5.1 channel can be conveyed in digital playback mode.
In analog playback mode, it supports 6 channels codec for analog playback In digital recording mode, it receives SPDIF digital audio input and sends back to PC through USB. Three sampling rates, includes 32KHz,44.1KHz are automatically locked internally. In analog recording mode, fixed 48KHz sampling rate issupportedby analog audio recording.
If you want the fiber output to support 5.1-channel output, you must have the following conditions:1.The sound source must be DTS 5.1 channels, such as 3D games, HD movies. If it is a general MP3 or general 2-channel video, you can only have 2-channel effect.
2.The player settings are important: if it is set up with PowerDVD software from the fiber output "Passthrough" through. Meaning that the sound card is only responsible for the fiber signal output, not decoding. Dispensers strongly recommend KMP this player, the function is very powerful。3. After the fiber output must be AC3 / DTS decoder, or built-in AC3 / DTS decoder amplifier and the like。

Full Specifications

Brand	Optimal Shop
Color	Blue
Platform	Windows 7, Windows 98
Connectivity	USB
Model Number	6478484
Compatibility	PC
Mfr Part Number	Optimal Shop
Audio Output Mode	Surround
Hardware Platform	Laptops, PC, Speakers
Compatible Devices	Personal Computer, Laptop
Hardware Interface	USB
Maximum Sample Rate	48 KHz
Hardware Connectivity	USB
Signal-to-Noise Ratio	120 dB
Item Dimensions L x W x H	3.46"L x 2.36"W x 0.79"H
Surround Sound Channel Configuration	5 1

Ready to buy?

USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio S/PDIF for PC -Blue 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. Last updated 2026-04-20. Price and availability subject to change.