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by Extreme
Product Line: Extreme x460 Series
Product Type: EDGE SWITCH
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Original price $0.00 - Original price $0.00
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Title: Surplus

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Product Description

The 16403 Extreme features 24 10/100/1000BASE-T PoE ports and 8 100/1000BASE-X unpopulated SFP ports (4 SFP ports shared with 10/100/1000BASE-T ports), along with a slot for optional XGM3 modules and a slot for an optional stacking module. It is equipped with an AC PoE PSU and an additional unpopulated PSU slot, supporting a power consumption of 481 W, 1650 BTU/hr per PSU, and doubling to 962 W, 3284 BTU/hr with dual PSUs. Designed for efficient operation, it operates within a temperature range of 0°C to 45°C, supports a nominal input voltage of 100 to 240 VAC, and has a heat dissipation of 202 W, 690 BTU/hr per PSU.

FAQs for the 16403

  • What is the weight of the device?
    The device weighs 13.1 lb (5.94 kg).
  • How many 10/100/1000BASE-T PoE ports does the device have?
    It has 24 10/100/1000BASE-T PoE ports.
  • What are the dimensions of the device?
    The device measures 1.73 inches in height, 17.4 inches in width, and 17.0 inches in depth.
  • Can the device support additional modules?
    Yes, the device has a slot for optional XGM3 modules and a slot for an optional stacking module.
  • What is the acoustic noise level of the device?
    The acoustic noise level is 42.9dB under normal operation and 62.9dB under high load.
  • What are the power specifications of the AC PoE PSU?
    The AC PoE PSU has nominal input ratings of 100 to 240 V, 50/60 Hz, 5.25 A per PSU, with a power consumption of 481 W, 1650 BTU/hr per PSU.
  • What is the operational temperature range?
    The operational temperature range is from 0 deg C to 45 deg C.
  • How many unpopulated SFP ports does the device include?
    The device includes 8 100/1000BASE-X unpopulated SFP ports, with 4 SFP ports shared with 10/100/1000BASE-T ports.
  • What is the maximum inrush current?
    The maximum inrush current is 30 A.
  • How does the power consumption change with dual PSUs?
    With dual PSUs, the power consumption increases to 962 W, 3284 BTU/hr.

Product Review

The Extreme 16403 offers a versatile range of connectivity options, including 24 10/100/1000BASE-T PoE ports and 8 100/1000BASE-X unpopulated SFP ports, with the flexibility to add optional XGM3 and stacking modules. However, its power consumption is notably high, at 481 W for a single PSU and 962 W for dual PSU configurations, which could impact operational costs in long-term deployments. Additionally, the unit operates efficiently within a broad temperature range (0°C to 45°C) and maintains a stable performance under varying humidity levels (20% to 90% relative humidity), ensuring reliability in diverse environmental conditions.


The Extreme 16403 is a high-performance networking switch designed to cater to the needs of modern businesses requiring efficient and scalable network infrastructure. It features a diverse range of connectivity options and is engineered for reliability and high power output. The hardware specifications of the Extreme 16403 highlight its capability to support a wide array of networking demands. Connectivity is a strong suit of the Extreme 16403, offering 24 10/100/1000BASE-T Power over Ethernet (PoE) ports for devices requiring both network connection and electrical power through a single cable. This is particularly useful for deploying devices like VoIP phones, wireless access points, and surveillance cameras without the need for additional power supplies. Additionally, it has 8 100/1000BASE-X unpopulated SFP (Small Form-factor Pluggable) ports, with 4 of these SFP ports shared with 10/100/1000BASE-T ports, providing flexibility for uplink connections or fiber optic connections for longer distance communication. The switch is expandable, featuring a slot for optional XGM3 modules, allowing for 10 Gigabit Ethernet connections, and a slot for an optional stacking module, enabling multiple switches to be connected and managed as a single entity. This scalability ensures that the network can grow in line with business needs without requiring a complete overhaul of the networking infrastructure. Power supply is another critical aspect of the Extreme 16403, equipped with an AC PoE Power Supply Unit (PSU) and an additional slot for a second PSU, offering redundancy for enhanced reliability. The power specifications include a nominal input rating of 100 to 240 V, 50/60 Hz, with a power consumption of 481 W per PSU under normal conditions and up to 962 W with dual PSUs, ensuring sufficient power for all connected devices. - Weight: 13.1 lb (5.94 kg), making it relatively easy to handle during installation. - Dimensions: Height of 1.73 inches (4.4 cm), width of 17.4 inches (44.1 cm), and depth of 17.0 inches (43.2 cm), designed for rack mounting in standard 19-inch racks. - Acoustic Noise: Ranges from 42.9dB in normal operation to 62.9dB under heavy load, ensuring a relatively quiet operation compared to other switches in its class. Environmental specifications indicate an operating temperature range of 0°C to 45°C, with storage temperatures ranging from -40°C to 70°C. The switch operates optimally within 20% to 90% relative humidity, non-condensing, and can withstand operational shock of 30 m/s2 (3g), demonstrating its durability in various physical conditions. In conclusion, the Extreme 16403 switch is equipped to handle the demands of modern networks, offering a blend of performance, scalability, and reliability. Its comprehensive range of ports, expandability options, and power supply redundancy make it a versatile choice for businesses looking to deploy a robust network infrastructure.


Model NumberExtreme 16403
Ports24 Ethernet PoE ports (10/100/1000BASE-T), 8 SFP slots (100/1000BASE-X), 4 dual-purpose (shared) ports
Expansion OptionsOptional XGM3 module slots, Optional stacking module slot
Power SupplyAC Power over Ethernet (PoE) Supply Unit, space for additional PSU
Weight13.1 pounds (5.94 kg)
Dimensions (H x W x D)1.73 x 17.4 x 17.0 inches (4.4 x 44.1 x 43.2 cm)
Noise Level42.9dB operational / 62.9dB maximum
Input Voltage85 to 264 VAC
Standard Input Ratings100 to 240 VAC, 50/60 Hz, 5 A
Input Current (Low-Line)4.9 A @ 100 V, 4.2 A @ 90 VAC
Input Current (High-Line)2.0 A @ 240 V, 1.7 A @ 230 VAC
Heat Output202 W, 690 BTU/hr
Single PSU Power Consumption481 W, 1650 BTU/hr
Dual PSU Power Consumption962 W, 3284 BTU/hr
Frequency Range47 to 63 Hz
Inrush Current (Max)30 A
Operating Temperature32°F to 113°F (0°C to 45°C)
Storage Temperature-40°F to 158°F (-40°C to 70°C)
Operating Humidity20% to 90% RH, non-condensing
Shock Resistance30 m/s² (3g)

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