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by Cisco
Product Line: Cisco Catalyst 3850 Series
Product Type: Switch
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Product Description

The WS-C3850-12X48U-S is a stackable 1 RU switch featuring 48 10/100/1000 ports with 12 UPOE Ethernet ports supporting speeds up to 10 Gbps. It is equipped with a 1100 WAC power supply and offers a forwarding rate of 460 Mpps, designed for high-performance networking environments. Compatible with network modules C3850-NM-4-1G, C3850-NM-2-10G, C3850-NM-4-10G, C3850-NM-8-10G, and C3850-NM-2-40G, it supports a broad range of connectivity and expansion options.

FAQs for the WS-C3850-12X48U-S

  • What is the port capacity of the networking switch?
    The switch has 48 ports, including 10/100/1000 Ethernet ports and 12 ports supporting 100Mbps/1/2.5/5/10 Gbps UPOE.
  • What power supply unit is included with part number C3850?
    It comes with a 1100 WAC power supply unit.
  • Is the networking hardware stackable?
    Yes, the device is designed to be stackable.
  • What network modules are supported by C3850?
    Supported network modules include C3850-NM-4-1G, C3850-NM-2-10G, C3850-NM-4-10G, C3850-NM-8-10G, and C3850-NM-2-40G.
  • What is the forwarding rate of this switch?
    The switch offers a forwarding rate of 460 Mpps.
  • What are the dimensions and weight of part number C3850?
    The dimensions are 1.75 x 17.5 x 19.2 inches, and it weighs 17.6 lbs.
  • What is the Mean Time Between Failures (MTBF) for this device?
    The MTBF is 202,030 hours.
  • What operating temperatures are supported by C3850?
    It supports operating temperatures from -5 °C to 45 °C.
  • Can the device operate at high altitudes?
    Yes, it operates up to 5000 ft with AC power supply and up to 6000 ft with DC power supply.
  • What are the storage temperature and altitude limits for part number C3850?
    The storage temperature ranges from -40 °C to 70 °C, and it can be stored up to an altitude of 15,000 ft.

Product Review

The Cisco WS-C3850-12X48U-S offers a versatile mix of 48 10/100/1000 Ethernet ports along with 12 UPOE ports capable of up to 10 Gbps, catering well to high-density deployments and future-proofing network infrastructures. However, its IP Base feature set may limit advanced enterprise network functionalities, necessitating an upgrade for full Layer 3 features. Additionally, the switch's 1100 WAC power supply and stackable 1 RU form factor enable efficient space usage and power provisioning for multiple units, though the noise level of 44 dBA could be a consideration in quieter working environments.


The Cisco WS-C3850-12X48U-S is a highly capable switch designed to support a wide range of networking needs. It features 48 ports that support 10/100/1000 Ethernet connections, along with 12 ports that offer up to 10 Gbps UPOE Ethernet, making it versatile for various high-speed networking requirements. This switch is equipped with an IP Base feature set, ensuring it can handle a broad spectrum of IP networking features right out of the box. This model comes with a 1100 WAC power supply, ensuring sufficient power for both the switch itself and any connected devices requiring Power over Ethernet (PoE). Its 1 RU form factor makes it compact and suitable for rack mounting, allowing for efficient use of space in crowded server rooms or network closets. Additionally, this switch is designed to be stackable, providing the capability to increase network capacity without a significant increase in complexity. The switch supports a variety of network modules, including C3850-NM-4-1G, C3850-NM-2-10G, C3850-NM-4-10G, C3850-NM-8-10G, and C3850-NM-2-40G, offering flexibility in network design and expansion. With a forwarding rate of 460 Mpps, it ensures high-speed data processing and transfer rates, suitable for demanding network environments. - Size: 1.75 x 17.5 x 19.2 inches, making it compact enough for rack mounting while providing enough ports for extensive connectivity. - Weight: 17.6 lbs, which is relatively lightweight for a device of its capability, facilitating easy installation and maintenance. - MTBF (Mean Time Between Failures) of 202,030 hours, indicating reliability and a long operational lifespan. The switch operates efficiently within a wide range of temperatures, from -5 °C to 45 °C, and can function at altitudes of up to 5000 ft with AC power supply and up to 6000 ft with DC power supply. It is designed to operate within humidity levels of 10% to 95% (noncondensing), ensuring it can withstand various environmental conditions. For storage, it can handle temperatures from -40 °C to 70 °C and can be stored at altitudes up to 15,000 ft. Vibration resistance is a critical factor for the longevity of networking hardware. The Cisco WS-C3850-12X48U-S is designed to operate with vibrations up to 0.41 g from 3 to 500 Hz and can withstand non-operating vibrations up to 1.12 g from the same frequency range. Noise levels are kept at a minimum, with specifications indicating 44 dBA at 30 °C, making it suitable for environments where noise reduction is crucial. Compliance and certifications are important for ensuring safety and environmental protection. This switch is RoHS-5 compliant and has received safety certifications from UL 60950-1 Second Edition, CAN/CSA-C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, and IEC 60950-1 Second Edition, ensuring it meets international safety standards. The Cisco WS-C3850-12X48U-S is a highly versatile and reliable switch that meets the needs of various networking environments, from small businesses to large enterprises, offering extensive connectivity, flexibility, and durability.


Item NumberWS-C3850-12X48U-S
Total Ports48
Port ConfigurationGigabit Ethernet ports with 12 ports supporting up to 10 Gbps using UPOE
Software EditionIP Base
Power Source1100 Watt AC
Device Size1 Rack Unit
Ability to StackSupported
Compatible Network ModulesC3850-NM-4-1G, C3850-NM-2-10G, C3850-NM-4-10G, C3850-NM-8-10G, C3850-NM-2-40G
Packet Forwarding Rate460 Million packets per second
Dimensions (H x W x D)1.75 x 17.5 x 19.2 inches
Unit Weight17.6 pounds
Mean Time Between Failures202,030 hours
Lowest Operating Temperature-5 degrees Celsius
Highest Operating Temperature45 degrees Celsius
Max Altitude for AC Power OperationUp to 5000 feet
Max Altitude for DC Power OperationUp to 6000 feet
Operational Humidity Range (Minimum)10% non-condensing
Operational Humidity Range (Maximum)95% non-condensing
Lowest Storage Temperature-40 degrees Celsius
Highest Storage Temperature70 degrees Celsius
Max Storage Altitude15,000 feet
Vibration during Operation0.41g from 3 to 500 Hz
Vibration when Not Operating1.12g from 3 to 500 Hz
Acoustic Noise Levels44 dBA at 30°C
Environmental ComplianceRoHS-5
Safety Standards MetUL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1 (all Second Edition)

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