Summary: Product works well, but takes a while to boot up computer with added drivers and software. I have used a external card similar to this one on another Windows 7 and Windows 8 machine. I will most likely continue to use this product for my home media systems.
Summary: The sound card on my laptop failed. The manufacturer said they could replace the motherboard for several hundred dollars. Since I'm not made of money, this wasn't going to happen. I not only needed playback capability, I also needed duplexing capability. (What Creative Labs calls - What-U-Hear.) Many USB solutions did not have this option. This sound card has provided everything I need and then some.
Summary: I bought this because I wanted a usb sound device to take between my two comps that was better than onboard sound. Well, it sounds better overall but, it pops loudly when coming out of hibernate and when booting and shutting down. My onboard does not. Headphone usage is disappointing as the sound sometimes clips or stretches out sounds longer than they are supposed to be. I would not recommend this.
Summary: My LAPTOP USB to Sound Blaster USB, optical-out to my Yamaha 5.1 Surround sound optical-in. Piece of cake to install. It was truly a no-brainerat a wicked-good price! Enjoying downloaded movies with full 5.1 sound now.
Summary: An appropriate external sound card for OSX. Perhaps the only limitation is that the sound volume knob on the unit does not work in OSX, but this is a known issue. If you have an external amplifier or powered speaker, you can easily adjust the volume on that. A good value for the price.