Cisco HWIC-4B-S/T-RF | 4-Port ISDN BRI S / T High-Speed WAN Interface Card

1. Interface Type: ISDN BRI S/T
2. Number of Ports: 4
3. Connector Type: RJ-45
4. Data Transfer Rate: 128 Kbps
5. Compatibility: Cisco 1800, 1900, 2800, 2900, 3800, and 3900 Series Integrated Services Routers
6. ISDN Signaling Type: Basic Rate Interface (BRI)
7. Protocols Supported: PPP, MLPPP, Cisco HDLC, and Frame Relay
8. Power Consumption: 6W
9. Dimensions: 3.1 x 4.8 x 0.8 inches
10. Weight: 2.4 ounces
11. Operating Temperature: 32 to 104°F (0 to 40°C)
12. Storage Temperature: -4 to 149°F (-20 to 65°C)

Notes:
1. The HWIC-4B-S/T-RF is a refurbished product.
2. This interface card provides high-speed WAN connectivity for small to medium-sized businesses.
3. It supports both voice and data applications.