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by Cisco
Product Line: Cisco Catalyst 4500E Series
Product Type: Non-Blocking Line Card
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Title: Surplus

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Product Description

The WS-X4748-12X48U+E module features 48 ports, with 12 MultiGigabit ports supporting speeds of 100/1000/2.5G/5G/10GBASE-T and 36 10/100/1000 ports. It is designed for high-density deployments in enterprise, commercial, campus, and branch applications, delivering non-blocking performance up to 1000 Mbps and supporting UPOE with up to 60 W per port, totaling a maximum of 1440 W. Compatible with Cisco IOS XE Release IOS-XE3.7.1E or later, it adheres to multiple standards including IEEE 802.3af/at, IEEE 802.3x flow control, and IEEE 802.1AE, with energy-efficient Ethernet (802.3az) on all 10/100/1000 ports, and supports jumbo frames up to 9216 bytes.

FAQs for the WS-X4748-12X48U+E

  • What is the total number of ports available on this networking device?
    Answer: The device has a total of 48 ports.
  • How many of these ports support MultiGigabit speeds?
    Answer: There are 12 MultiGigabit ports available.
  • Can you use RJ-45 connectors with this device?
    Answer: Yes, RJ-45 support is available for all ports.
  • What types of applications is this device suited for?
    Answer: It is designed for enterprise, commercial, campus, and branch applications.
  • What is the maximum speed supported on MultiGigabit ports?
    Answer: The MultiGigabit ports support speeds up to 10GBASE-T.
  • How much power can the UPOE ports provide?
    Answer: UPOE ports can provide up to 60 W per port, with a total budget of 1440 W.
  • What software version is required for this device?
    Answer: Cisco IOS XE Release IOS-XE3.7.1E or later is required.
  • Are the ports capable of non-blocking operation?
    Answer: Yes, the device supports non-blocking up to 1000 Mbps.
  • What standards does this device comply with?
    Answer: It complies with IEEE 802.3af/at, IEEE 802.3x, IEEE 802.1AE, and Cisco TrustSec capability standards.
  • What is the energy efficiency feature available on 10/100/1000 ports?
    Answer: Energy Efficient Ethernet (IEEE 802.3az) is supported on all 10/100/1000 ports.

Product Review

The CISCO WS-X4748-12X48U+E offers a versatile mix of 48 ports, including 12 MultiGigabit ports supporting speeds up to 10GBASE-T, catering to high-bandwidth applications such as large file transfers and network backups. While it excels in delivering power with UPOE capabilities up to 60W per port, ensuring support for a variety of PoE/UPOE devices, it is limited by its non-blocking performance capped at 1000 Mbps, which could be a bottleneck for networks requiring higher throughput across all ports. Additionally, the module's compatibility with Cisco IOS XE Release IOS-XE3.7.1E or later and adherence to various IEEE standards, including 802.3af/at for PoE and 802.3x for flow control, make it a compliant and reliable choice for enterprise, commercial, and campus applications.


The CISCO WS-X4748-12X48U+E is a high-capacity, multi-speed interface module designed to meet the diverse networking needs of enterprise, commercial, campus, and branch applications. This module features a total of 48 ports, including 12 MultiGigabit ports and 36 10/100/1000 ports, all supporting RJ-45 connectors for broad compatibility. The MultiGigabit ports are capable of running at speeds of 100/1000/2.5G/5G/10GBASE-T, accommodating a range of devices and data rates, while the other ports provide reliable 10/100/1000 connectivity. This module stands out for its support of Universal Power Over Ethernet (UPOE), delivering up to 60W per port with a total power budget of 1440W, making it suitable for powering devices such as IP phones, wireless access points, wireless base stations, video cameras, virtual desktop clients, and more. The Cisco WS-X4748-12X48U+E is designed for optimal energy efficiency and performance, supporting Energy Efficient Ethernet (802.3az) on all 10/100/1000 ports. Key hardware specifications of the CISCO WS-X4748-12X48U+E include: - Non-blocking performance up to 1000 Mbps to ensure smooth data transfer. - Jumbo frame support up to 9216 bytes, enhancing data transmission efficiency for large files and network backups. - A mean time between failures (MTBF) of 524,630 hours, indicating reliable long-term operation. The module is equipped with three software-configurable modes, giving network administrators flexibility in how they deploy services and manage traffic. It operates on Cisco IOS XE Release IOS-XE3.7.1E or later, incorporating advanced networking features and protocols to ensure secure and efficient network operations. The CISCO WS-X4748-12X48U+E adheres to key industry standards, including IEEE 802.3af/at for Power over Ethernet (PoE), IEEE 802.3x for flow control, and IEEE 802.1AE for secure network connectivity. Compatibility with 802.11ac Wave2 Multigigabit Access Points, Multigigabit Switches, Network Interface Cards, and Adapters ensures that this module can seamlessly integrate into a wide range of networking environments, supporting the deployment of high-speed, high-density wireless infrastructures. In terms of power efficiency and consumption, the CISCO WS-X4748-12X48U+E has a maximum power requirement of 118W and supports inline power of 30W per port, with the capability to deliver inline power to all ports simultaneously at this maximum level. This efficiency is complemented by the module's compliance with RoHS 5, reflecting Cisco's commitment to environmental sustainability. Overall, the CISCO WS-X4748-12X48U+E is a versatile, high-performance interface module that provides the speed, power, and flexibility needed to support the demanding requirements of modern networked environments. Its comprehensive feature set and advanced capabilities make it an ideal solution for organizations looking to deploy high-density, multi-speed networking applications efficiently and effectively.


Item Number CISCO WS-X4748-12X48U+E
Total Ports 48
Port Configuration MultiGigabit and Gigabit Ethernet
RJ-45 Compatibility Supported
MultiGigabit Ports Count 12
Gigabit Ethernet Ports Count 36
Use Cases Enterprise, Commercial, Campus, Branch
MultiGigabit Port Speeds 100/1000/2.5G/5G/10G BASE-T
Standard Port Speeds 10/100/1000
Configurable Modes Count 3
Maximum Throughput without Blocking Up to 1000 Mbps
UPOE Support Up to 60 W per port, total 1440 W
Operating System Cisco IOS XE, version IOS-XE3.7.1E or newer
Compliance IEEE 802.3af/at, Cisco prestandard PoE, IEEE 802.3x, IEEE 802.1AE, Cisco TrustSec
Maximum Frame Size Up to 9216 Bytes
Transmission Rate 1:1 for speeds up to 1000 Mbps across all ports
Peak Power Consumption 118 W
Mean Time Between Failures (MTBF) 524,630 hours
Maximum Power per Port 30 W
Simultaneous Power Supply Across Ports 30 W per port Maximum
Flow Control Protocol IEEE 802.3x
Device Compatibility 802.11ac Wave2, Multigigabit Switches, NICs, Adapters
Environmental Standards RoHS 5 compliant
Optimal Use Transferring large files, performing network backups
Suitable Devices IP phones, wireless APs, base stations, video cameras, virtual desktop clients, PoE/UPOE devices
Energy Efficient IEEE 802.3az compliant on Gigabit Ethernet ports

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