Power, volume, and a headphone jack are located on the front-right satellite; bass level control is on the back of the subwoofer.
The Logitech X-530 5.1 Speaker System is an and does not require specific software drivers from Logitech to function. Instead, it relies entirely on the audio drivers of your computer's sound card or motherboard. Where to Find Necessary Drivers logitech x-530 5.1 speaker system drivers download
The Logitech Support Page explicitly states that there are no downloads or software available for this product because it is an analog system. Power, volume, and a headphone jack are located
Visit the website of your PC manufacturer (e.g., Dell, HP, or ASUS) or your motherboard manufacturer to download the latest Realtek or equivalent audio drivers. Where to Find Necessary Drivers The Logitech Support
If your speakers are connected but you aren't hearing 5.1 surround sound, follow these setup steps:
Choose from the list and follow the prompts to test each speaker.