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Digium 1A4B05F is a modular PCI Express card with four included FXS modules. With the capacity for up to four analog modules, the Digium A4B05F can be scaled with available FXS and FXO modules. The scalable, modular design lets you configure the PCI Express card as your system's requirements change. The Digium 1A4B05F PCIe card is compatible with Asterisk.
