OULLX 4.1 PCIe Sound Card – 4-Channel PCI-Express X1 Audio Adapter

OULLX 4.1 PCIe Sound Card – 4-Channel PCI-Express X1 Internal Audio Adapter for Desktop PC

Upgrade your desktop PC's audio experience with the OULLX 4.1 PCIe Internal Sound Card. Powered by the CMI8738 and VIA VT1723 Envy24D multi-channel chips, this PCI-Express X1 audio adapter delivers rich 4.1-channel surround sound — perfect for home theater setups, immersive 3D gaming, music listening, and karaoke entertainment. Say goodbye to your motherboard's basic onboard audio and step into crystal-clear, full-duplex sound.

⚠️ Important Note: Please disable your system's integrated (onboard) sound card in BIOS before installing and using this 4.1 channel PCIe sound card.

Made in Mainland China.

Key Features

• CMI8738 4.1 Sound Chip: Delivers 4-channel surround sound output via PCI-Express bus slot for an immersive audio experience.
• DLS Voice Library & 3D Audio Support: Compatible with A3D 1.0, DS3D, DirectSound 3D, and EAX sound effects for realistic, three-dimensional audio in games and media.
• 24-bit SPDIF IN/OUT: Supports 24-bit S/PDIF digital output (and optional S/PDIF input), providing high-fidelity surround sound and clear audio quality.
• Full Duplex Operation: Supports simultaneous playback and recording at 24-bit, 48 kHz sampling rate for professional-grade audio performance.
• Multiple Output Channels: Supports Front L/R, Surround L/R, Centre/Subwoofer, and S/PDIF Out. Optional sub-card adds rear surround L/R, line input L/R, mono Mic In, and S/PDIF In.
• Noise Elimination: Built-in noise balance elimination function activates during PC power on/off to protect your speakers and ears.
• Broad OS Compatibility: Supports Windows 10, 7, Vista, XP, Server 2003–2008 (32/64-bit), Windows 2000, ME, and 98SE.

Technical Specifications

• Interface: PCI-Express X1 (Revision 1.1)
• Audio Channels: 4.1 (4-Track Full Duplex)
• Main Chip: CMI8738 / VIA VT1723 Envy24D
• Sampling Rate: 24-bit, 48 kHz
• Standard Compliance: AC'97 Specification Revision 2.3
• Type: Internal Sound Card
• Compatible Systems: Windows 10 / 7 / Vista / XP / Server 2003–2008 (32/64-bit) / 2000 / ME / 98SE

What's in the Box?

• 1 × OULLX 4.1 PCIe Internal Sound Card

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Frequently Asked Questions

Q: Does this PCIe sound card work with Windows 10?

A: Yes! The OULLX 4.1 PCIe Sound Card is fully compatible with Windows 10 (32/64-bit), as well as Windows 7, Vista, XP, Server 2003–2008, Windows 2000, ME, and 98SE. Simply install the provided drivers following the step-by-step instructions included.

Q: Do I need to disable my onboard sound card before installing this PCIe audio adapter?

A: Yes, it is strongly recommended to disable your motherboard's integrated (onboard) sound card in your system BIOS before using this card. This prevents driver conflicts and ensures the best audio performance from the 4.1 channel PCIe card.

Q: What audio setups is this sound card suitable for?

A: This card is ideal for home theater systems, immersive 3D gaming, music appreciation, karaoke, and general multimedia use. It supports 4.1-channel surround sound with Front L/R, Surround L/R, Centre/Subwoofer, and S/PDIF digital output — giving you a rich, enveloping audio environment.

Q: What PCI-Express slot size does this sound card require?

A: This sound card requires a PCI-Express X1 slot on your desktop motherboard (compliant with PCIe revision 1.1). It is an internal card and is not compatible with laptops or PCI (non-Express) slots.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.