• Digium 1A4A01F

    4 port modular analog PCI 3.3/5.0V card, no interfaces and HW Echo Can. The 1A4A01F from the A4 Series is a PCI card with EC for 3.3/5.0V with 0-FXS/0-FXO and 4 ports. This base PCI card for Digium's A4-series is scalable through expansion modules... More details

  • Digium 1A4A00F

    4 port modular analog PCI 3.3/5.0V card, no interfaces. Digium 1A4A00F 4 Port 0-FXS/0-FXO PCI Card , 4 port modular analog PCI 3.3/5.0V card, no interfaces. Digium's A4-series PCI cards are designed to interface analog and VoIP connections. For example,... More details

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