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by Extreme
Product Line: ExtremeSwitching X620
Product Type: Switch
Original price $0.00 - Original price $385.00
Original price
$0.00 - $385.00
Current price $385.00
Title: Used

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Product Description

The 16504 Extreme is a 1RU networking hardware featuring 24 x 10/100/1000BASE-T PoE-plus (RJ45) ports with 4 combo ports that also support 100/1000BASE-X (SFP). It includes 2 x SummitStack ports, 1 x Serial (console port), and 1 x 10/100BASE-T out-of-band management port, alongside a redundant power supply connector for enhanced reliability. With operational conditions ranging from 0° C to 45° C and 10% to 95% relative humidity, non-condensing, this device is designed to withstand diverse environments.

Key Feature for the 16504

  • What are the dimensions of the networking hardware?
    The hardware measures 1.73 inches in height (1RU), 17.4 inches in width, and 10.0 inches in depth.
  • How many 10/100/1000BASE-T PoE-plus ports does the device offer?
    The device includes 24 x 10/100/1000BASE-T PoE-plus (RJ45) ports, with 4 ports being combo ports.
  • What type of power supply connector is available?
    A redundant power supply connector is available on the device.
  • Can you provide details on the device's power efficiency?
    The device operates with a power efficiency of 70% and a PoE budget of 380W.
  • What are the operating temperature and humidity ranges?
    Operating conditions are from 0° C to 45° C (32° F to 113° F) and 10% to 95% relative humidity, non-condensing.
  • What is the weight of the device?
    The device weighs 9.8 lb (4.465 kg).
  • Describe the noise levels at different speeds.
    At low speed (5900 RPM), the sound pressure is 42 dB(A), and at high speed (11000 RPM), it increases to 57 dB(A).
  • What are the specifications for the power supply cord required?
    A minimum of 18AWG power supply cord is required, with an IEC 320 C13/C14 input plug/socket.
  • How many SFP combo ports are available?
    There are 4 x 100/1000BASE-X (SFP) combo ports available on the device.
  • What are the device's resilience features in terms of power supply?
    The device supports a redundant power supply, enhancing its reliability and uptime.

Product Review

The Extreme 16504 switch offers a compact form factor at 1RU high, facilitating easy integration into space-constrained environments, with a weight of 9.8 lb and dimensions that support rack-mount installations. It provides diverse connectivity options, including 24 Gigabit Ethernet PoE-plus ports with 4 combo ports and 4 SFP combo ports, alongside redundancy features such as a redundant power supply connector, enhancing network reliability. However, its operational noise levels can reach up to 57 dB(A) at high speeds, which may be a concern in noise-sensitive environments, and it operates with a 70% efficiency rating, indicating potential for improvement in energy consumption.


The Extreme 16504 is a networking switch designed to meet the needs of modern businesses, featuring a compact form factor and a range of connectivity options. Weighing 9.8 lb (4.465 kg) and measuring 1RU in height (1.73 inches or 4.4 cm), with a width of 17.4 inches (44.1 cm) and a depth of 10.0 inches (25.4 cm), this device is engineered for easy integration into any rack setup or networking closet. At the core of its connectivity features, the Extreme 16504 offers 24 x 10/100/1000BASE-T PoE-plus (RJ45) ports, with 4 of these ports serving as combo ports, enhancing the flexibility and utility of the device in various networking environments. Additionally, it includes: - 4 x 100/1000BASE-X (SFP) combo ports for uplink connections. - 2 x SummitStack ports for stackable configuration, enabling scalability and simplified management. - 1 x Serial (console port) and 1 x 10/100BASE-T out-of-band management port for device configuration and monitoring. The switch supports a redundant power supply connector, ensuring uninterrupted operation and increased reliability in the event of a power supply failure. It operates quietly at a low speed with a sound pressure level of 42 dB(A) and can go up to 57 dB(A) at high speed, maintaining a balance between performance and noise level. With an efficiency rate of 70%, the Extreme 16504 delivers a PoE budget of 380W, out of a total power consumption of 585W, making it an efficient choice for powering connected devices such as IP cameras, VoIP phones, and wireless access points directly through the network cables. The power supply features include: - Input socket: IEC 320 C14. - Power cord input plug/input socket: IEC 320 C13/C14. - Power supply cord gauge: Minimum 18AWG. - Redundant power supply input socket: 2x7 pin terminal block. Designed to operate in a wide range of conditions, the Extreme 16504 can function in temperatures from 0° C to 45° C (32° F to 113° F) and withstand humidity levels from 10% to 95% relative humidity, non-condensing. It is also built to endure physical stress, capable of withstanding shock (half sine) of 30 m/s2 (3 G) for 11 ms, up to 60 shocks, and random vibration from 3 to 500 Hz, ensuring reliability and durability in various operational environments. The Extreme 16504 stands out for its combination of performance, efficiency, and durability, making it suitable for a wide range of networking applications in businesses of any size. Its comprehensive set of features ensures that it can meet the demands of complex network infrastructures, providing seamless connectivity, enhanced security, and easy management.


Item NumberExtreme 16504
Weight9.8 pounds (4.465 kilograms)
Rack Units1RU, 1.73 inches (4.4 cm) tall
Width17.4 inches (44.1 cm)
Depth10.0 inches (25.4 cm)
Ethernet Ports24 x Gigabit Ethernet PoE+ (RJ45), includes 4 combo ports
SFP Combo Ports4 x Gigabit (SFP)
Stacking Ports2 x SummitStack
Management Ports1 x Serial (Console), 1 x 10/100BASE-T out-of-band
Power Supply Redundancy1 connector for optional redundant power supply
Low Fan Speed RPM5900
Noise Level at Low Speed42 dB(A)
High Fan Speed RPM11000
Noise Level at High Speed57 dB(A)
Power Efficiency585W at 70% efficiency
Power over Ethernet (PoE) Budget380W
Main Power SocketIEC 320 C14
Power Cord SpecificationIEC 320 C13 to C14, minimum 18AWG
Redundant Power Input2x7 pin terminal block
Operating Temperature Range0°C to 45°C (32°F to 113°F)
Operating Humidity Range10% to 95%, non-condensing
Shock Resistance30 m/s^2 (3 G), 11 ms, 60 shocks
Vibration ToleranceRandom: 3 to 500 Hz

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