But I have two different USB 5.1 sound cards with coax and optical, and neither support more than 2.1 via the S/PDIF ports. The 5.1 is done via 3 (or 4) stereo minijacks. It's so weird that this ...

The Creative Sound Blaster X-Fi Surround 5.1 Pro is said to offer true 5.1 surround sound, while the Sound Blaster X-Fi Go! Pro has been designed for mobile listeners.

ASUS enters Republic of Gamers sound cards, introduces PCIe-based and USB-based ROG sound cards. ... just RCA left/right audio connectors for input and USB for power and PC sound card connectivity. 7.

HyperX Announces HyperX AMP Stand-alone USB Sound Card Compatible with any gaming headset, designed to improve audio and includes 7.1 Surround Sound. Download ...

It's newest product, the Xonar U7 MKII, is a compact USB sound card with a built-in headphone amplifier. The Xonar U7 MKII is mostly intended for laptops, though it can be used with desktops as well.

Sound Blaster X5 from Creative Technology is the company's latest USB DAC and amplifier sound card, and it has everything an audiophile could ... There are two-way RCA and TOSLINK Optical ...

As a result, this USB double-DAC and amplifier external sound card is compatible with everything from studio-grade headphones with a higher impedance of up to 600 ohms to more sensitive in-ear ...