Functions: This 5.1 channel PCI-E sound card adopts CMI8738 chip, durable and stable operation, ensuring no delay in sound transmission. Goldfinger design, good electrical conductivity, strong oxidation resistance, stable transmission. High strength metal partition, stable and durable, not easy to deform. Equipped with microphone inputs, line input, front output, rear output and bass interfaces, easy and convenient to use. Support 6-channel surround sound output, support DLS sound library technology, compatible with DirectSound 3D and EAX sound effects. Support desktop computers with PCI-Express slot, compatible with Win7 / Vista / XP / Server 2003-2008 32/64-bit, 2000, ME, 98SE operating system. Specification: Name: PCI-E sound card Layout: CMI8738 Socket Type: PCI-E Interface: Microphone Input, Line Input, Front Output, Rear Output, Bass Supported System: Windows XP / Win7 / Win8 Product Size: 12 * 9,5 * 5 cm / 4,72 * 3,74 * 1,97 inch List of things to pack: 1 * PCI-E sound card