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Amazon.com: Syba Dual Port Gigabit Ethernet PCI Express 2.1 PCI-E x1 Network Adapter Card (NIC) 10/100/1000 Mbps Card with Realtek RTL8111 Chipset, 2 Port (SD-PEX24041) : Electronics
Internal Sound Cards for PCI Express x1 for sale | eBay
Sound Card PCI-Express 7.1 x1 Low Profile - Amedia Computer France SAS
7.1 Channel PCI Express Sound Card - Our video cards and sound cards enable you to add smooth video performance or high-end audio capability to your PC computer, through a motherboard PCI