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by Cisco
Product Line: Cisco Nexus 9000 Series Switches
Product Type: Power Supply Unit
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Original price $0.00 - Original price $602.00
Original price
$0.00 - $602.00
Current price $0.00
Title: Surplus

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Product Description

The A900-PWR900-D2 is a Cisco power supply designed for use with the 4200 Series Network Convergence Systems, offering a 900 W power rating and dual feeds for redundancy. It operates within a voltage range of -40 V to -72 V, with a nominal voltage of -48 VDC / -60 VDC. This unit boasts a MTBF (Mean Time Between Failures) of 2,133,420 hours, measuring 15.44 in. in length, 9.44 in. in width, and 4.31 in. in height, with a weight of 3.6 lbs.

Key Feature for the A900-PWR900-D2

  • What is the power rating of the AC / DC DC networking hardware?
    The power rating is 900 W.
  • Can the hardware be used with any systems?
    It is designed for use with 4200 Series Network Convergence Systems.
  • What are the minimum and maximum voltage specifications?
    The minimum voltage is -40 V, and the maximum voltage is -72 V.
  • What is the nominal voltage supported by this device?
    -48 VDC / -60 VDC are the supported nominal voltages.
  • How many feeds does this networking hardware support?
    It supports 2 feeds.
  • What are the dimensions of this product?
    Length: 15.44 in., Width: 9.44 in., Height: 4.31 in.
  • What is the MTBF (Mean Time Between Failures) for this device?
    The MTBF is 2,133,420 hours.
  • How much does the hardware weigh?
    It weighs 3.6 lbs.
  • Is there a specific voltage this hardware operates at?
    Yes, it operates at nominal voltages of -48 VDC or -60 VDC.
  • What is the intended use case for this hardware?
    It is intended for powering and integrating with 4200 Series Network Convergence Systems.

Product Review

The Cisco A900-PWR900-D2 power supply offers a dual-feed capability, ensuring redundancy and reliability for critical network operations, especially suited for the 4200 Series Network Convergence Systems. Its power rating of 900W accommodates substantial power requirements, although its operational voltage range could be limiting for systems requiring flexibility beyond -40V to -72V. With an impressive MTBF of over 2 million hours, this unit promises longevity, but its physical dimensions and weight may pose challenges in tightly packed data center environments.


The Cisco A900-PWR900-D2 is a power supply module designed to support the operational needs of the 4200 Series Network Convergence Systems. This module provides a reliable power source to ensure network infrastructure remains functional and efficient. It operates on a DC power supply, with a significant power rating of 900 watts, accommodating the high-performance requirements of modern network systems. This power module is engineered to support dual feeds, enhancing its reliability by ensuring that there is a backup power source in the event of a feed failure. With a minimum voltage rating of -40 V and a maximum of -72 V, it offers flexibility in terms of power input. The nominal voltage for operation is set at -48 VDC / -60 VDC, catering to standard DC power supply environments found in many data centers and network operations centers. One of the most notable aspects of the Cisco A900-PWR900-D2 is its exceptional mean time between failures (MTBF) of 2,133,420 hours. This figure highlights the module's reliability and durability, ensuring that it can support continuous operation over extended periods without experiencing failure. In terms of physical specifications, the power supply module has a length of 15.44 inches, a width of 9.44 inches, and a height of 4.31 inches. This compact size allows for easy integration into existing network setups without requiring significant space adjustments. Additionally, it weighs 3.6 lbs, making it relatively lightweight and easy to handle during installation or maintenance activities. The Cisco A900-PWR900-D2 is specifically designed for use with the 4200 Series Network Convergence Systems, ensuring compatibility and optimal performance when used within these environments. Its design and specifications are tailored to meet the power requirements of these systems, providing a seamless and efficient power solution. Key features of the Cisco A900-PWR900-D2 include: - Power Rating: A substantial 900 watts, suitable for high-demand network environments. - Dual Feeds: Enhances the reliability of the power supply by providing a backup power source. - High MTBF: An impressive 2,133,420 hours, indicating high reliability and reduced risk of failure. In summary, the Cisco A900-PWR900-D2 power supply module stands out for its high power rating, dual feed capability, and excellent reliability metrics. Its compatibility with the 4200 Series Network Convergence Systems makes it an essential component for ensuring uninterrupted network operation. The module's design and specifications are focused on providing a dependable power source for critical network infrastructure, making it a valuable addition to any data center or network operations center.


Item Code A900-PWR900-D2
Produced by Cisco
Power Type DC
Power Capacity 900 Watts
Feed Count 2
Lowest Voltage -40 Volts
Highest Voltage -72 Volts
Standard Operating Voltage -48 VDC / -60 VDC
Mean Time Before Failure (MTBF) 2,133,420 Hours
Dimensions (Length) 15.44 inches
Dimensions (Width) 9.44 inches
Dimensions (Height) 4.31 inches
Mass 3.6 pounds
Compatibility 4200 Series Network Convergence Systems

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