Upgrade to 5.1 audio for a PCI enabled desktop without breaking your bank. The Rosewill RC-701 PCI sound card supports earphones, 2/4/6 channel speaker mode and features a built-in 16-bit CODEC. Full duplex allows you to play and record at the same time. With Microsoft DirectSound and Direct Music support, the Rosewill RC-701 PCI sound card is perfect for music playback and recording as well as gaming on your Windows PC. This sound card is also ACPI power management compatible.