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by Cisco
Product Line: Cisco Catalyst 4500 Series
Product Type: Gigabit Ethernet Fiber Line Card
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Product Description

The WSX4448GBSFP is a Cisco Catalyst 4500 Series module featuring 48 SFP ports with a port speed of 1000BASE-X and supports a wire rate of 8-to-1. It is designed for energy efficiency, with a maximum power consumption of 65 W, and offers high reliability with a Mean Time Between Failures (MTBF) of 290,732 hours. This module is suited for high-density applications such as server farms and switch-to-switch connections, supporting a mix and match of 1000BASE-X SFP optics, and complies with IEEE 802.3x flow control standards and RoHS-5.

FAQs for the WSX4448GBSFP

  • What is the port type of the networking hardware?
    • The port type is SFP.
  • How many ports does the device have?
    • The device features 48 ports.
  • What is the maximum power consumption of this hardware?
    • Maximum power consumption is 65 W.
  • What is the Mean Time Between Failures (MTBF) for the device?
    • MTBF is 290,732 hours.
  • Can the device support a mix and match of 1000BASE-X SFP optics?
    • Yes, it supports a mix and match of 1000BASE-X SFP optics.
  • What is the operating temperature range for the device?
    • The operating temperature ranges from 0 °C to 40 °C.
  • What flow control standards does the device adhere to?
    • The device adheres to IEEE 802.3x flow control standards.
  • What safety certifications does the hardware have?
    • It has safety certifications from UL 1950, EN 60950, CSA-C22.2 no 950, and IEC 950.
  • Is the device RoHS compliant?
    • Yes, it is RoHS-5 compliant.
  • What are the recommended applications for this networking hardware?
    • Recommended applications include server farms and switch-to-switch connections.

Product Review

The Cisco WS-X4448GB-SFP offers 48 SFP ports capable of 1000BASE-X speeds, making it suitable for high-density fiber connections in server farms and between switches. With a mean time between failures (MTBF) of 290,732 hours, it promises reliability in demanding environments. However, its maximum power consumption of 65W and operation within a temperature range of 0°C to 40°C may limit its deployment in environments with stringent energy efficiency or cooling requirements.


The Cisco WSX4448GBSFP is a high-performance networking module designed for the Cisco Catalyst 4500 Series platform, offering a blend of speed, flexibility, and reliability for diverse networking requirements. This module features 48 ports, each supporting SFP (Small Form-Factor Pluggable) for 1000BASE-X connections, making it an ideal solution for high-speed data transmission needs. With its capability to support a wide variety of 1000BASE-X SFP optics, this module allows for a customizable mix and match approach to meet specific network infrastructure needs. Key specifications include a wire rate of 8-to-1, ensuring efficient data handling across all ports. The module’s maximum power consumption is 65 Watts, reflecting its efficiency in operations without compromising on performance. It boasts an impressive MTBF (Mean Time Between Failures) of 290,732 hours, indicating a reliable long-term service life. The design is compact, with dimensions of 1.2 inches in height, 14.25 inches in width, and 10.75 inches in depth, ensuring it fits seamlessly into the designated slot in the Cisco Catalyst 4500 Series chassis. - Operating temperature ranges from 0 °C to 40 °C, with a storage temperature range extending from -40 °C to 70 °C. - The module adheres to strict safety standards, including UL 1950, EN 60950, and CSA-C22.2 no 950, among others, ensuring a safe operating environment. - It is also compliant with RoHS-5 directives, highlighting its environmentally friendly design. Notably, the module supports IEEE 802.3x flow control standards, facilitating smooth and controlled data transmission by managing data flow between devices to prevent packet loss. This feature is particularly useful in environments with high data transmission rates, such as server farms and switch-to-switch applications. Additionally, the module is equipped to run point-to-point Gigabit Ethernet fiber to the home applications, making it versatile for both service provider and enterprise network environments. The WSX4448GBSFP operates efficiently within a wide range of humidity (10% to 90% noncondensing) and altitude (-60 to 3000 meters), ensuring reliability across various environmental conditions. The laser class 1 certification guarantees safety in operations involving laser technology. With eight ports per tuple, this module facilitates organized and efficient network configurations. This module is not only designed for performance but also for compliance with critical industry standards and safety certifications, ensuring its suitability for a wide range of operational environments. Whether for service providers or enterprise applications, such as server farms and switch-to-switch connectivity, the Cisco WSX4448GBSFP provides a reliable, flexible, and efficient solution for expanding network capabilities.


Item NumberCisco WSX4448GBSFP
Ports Quantity48
Type of PortsSFP
Port Data Rate1000BASE-X
Data Transmission Ratio8:1
Peak Power Draw65 W
Mean Time Between Failures (MTBF)290,732 Hours
Expansion SlotsSingle Slot for Cisco Catalyst 4500 Series
Unit Height1.2 in.
Unit Width14.25 in.
Unit Depth10.75 in.
Operational Temp (Min)0 °C
Operational Temp (Max)40 °C
Humidity (Min, Operational)10% (Noncondensing)
Humidity (Max, Operational)90% (Noncondensing)
Storage Temp (Min)-40 °C
Storage Temp (Max)70 °C
Optical Emission ClassClass 1
Compatibility with Mixed SFP OpticsSupported
Compliance with Flow ControlIEEE 802.3x
Usage ScenariosGigabit Ethernet Fiber to the Home, Server Connectivity, Inter-Switch Links
Approved Safety StandardsUL 1950, EN 60950, CSA-C22.2 No. 950, IEC 950
Compliance with RoHSRoHS-5
Maximum Operating Elevation-60 to 3000 m
Ports per Group8

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