KingRex's UD-01 digital audio converter replaces your PC's sound card for transporting audio to an amplifier. By cutting out the PC's noisy internal circuitry the UD-01 offers a significant boost in sound quality with a warm yet clear signature.

Overall, the SoundBlaster X-Fi Fatal1ty FPS is an impressive piece of hardware that fulfils the key functions of a sound card better than any other consumer product. Hardcore gamers now face the difficult choice: a new graphics card, or an X-Fi Fatal1ty FPS?

Trends Audio’s UD10.1 is a digital audio converter that can do more than just connect to a PC. With its extra, professional-level outputs the UD10.1 might be the AV accessory you’ve been searching for.

Do yourself a favour and upgrade from the integrated sound on your motherboard to this X-Fi card. Its sound quality was excellent, as was its ability to record from line sources.

This card shines for gaming and entertainment, and it's also a good entry point for anyone who wants to start making music on their PC.

The Xmod is a brilliant product. While the audio does have a slightly manufactured sound to it, it's nonetheless impressive. The portable form factor, combined with the cheap price make this an ideal solution for quality audio on a budget.

When onboard audio just won't do, the Creative SoundBlaster X-Fi Xtreme Audio Notebook is an exceptional option and one that notebook gamers, music enthusiasts and film buffs will greatly appreciate.

The Sound Blaster X-Fi Surround 5.1 is a portable, well-rounded external sound card with all the advantages of Creative’s internal sound card range. Some won't notice its benefits, but its support for EAX and X-Fi technology will be an advantage for most people.

The X-Fi Elite Pro is an extremely impressive sound card. The audio performance rivals that of many professional cards, and the break-out box offers more connections than a BT exchange. However, it's also seriously pricey, and unless you're a dedicated audiophile we don't think it's quite worth so much.

If you're after a new sound card, the Xonar U1 is a decent choice -- it'll even work on computers that have ancient USB 1.1 ports. However, its sound quality wasn't always perfect during our tests, and longer cables would've been beneficial.