Technotech PCI Sound Card 4 Channel Support Windows XP Only • Type of Sound Card: Stand-Alone Audio Card  • Internal/External: Internal  • Port Connectors: Line In, Mic In, Front Speaker, Rear Speaker  • Slot Type: PCI  • Compliance with APM 1.2, ACPI 1.1, and PPMI 1.1  • High-performance single-chip PCI audio acceleration  • Compliant with PCI 2.1/2.2 PCI specification  • OS Supported : XP