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by Hp
Product Line: Hp 640 Series
Product Type: External Power Supply
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Original price $0.00 - Original price $0.00
Original price
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Current price $0.00
Title: Surplus

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Product Description

The J9805A HP features 8 redundant power supply ports, designed to ensure continuous operation with support for both 12VDC and 54VDC outputs. It is built to fit in a standard rack unit with dimensions of 17.4(w) x 12.7(d) x 1.73(h) inches (44.2 x 32.26 x 4.4 cm) and operates efficiently within a temperature range of 32°F to 131°F (0°C to 55°C) and a relative humidity range of 15% to 95%, noncondensing. The device can handle a maximum power rating of 3150 W, with up to 2100 W dedicated to PoE (Power over Ethernet) applications, suitable for environments at altitudes of up to 9,842 ft (3 km).

FAQs for the J9805A

  • What are the dimensions of the 1U height networking device?
    • The device measures 17.4 inches (44.2 cm) in width, 12.7 inches (32.26 cm) in depth, and 1.73 inches (4.4 cm) in height.
  • How many RPS ports are available?
    • There are 8 redundant power supply (RPS) ports.
  • What is the operating temperature range of the device?
    • The operating temperature can vary from 32°F (0°C) to 131°F (55°C).
  • What DC voltage does the device support?
    • Depending on the installed power supplies, the device can supply either 12VDC or 54VDC.
  • What are the minimum and maximum operating relative humidity levels?
    • Operating relative humidity ranges from 15% noncondensing to 95% noncondensing.
  • What is the maximum power rating and PoE power capability?
    • The maximum power rating is 3150 W, and it supports up to 2100 W of Power over Ethernet (PoE) power.
  • What altitude range can the device operate in?
    • It is operational from 0 ft (0 km) up to 9,842 ft (3 km) above sea level.
  • What are the nonoperating/storage temperature limits?
    • For storage or nonoperating conditions, the temperature range is from -40°F (-40°C) to 158°F (70°C).
  • What is the device's frequency range?
    • The frequency range spans from 50 Hz to 60 Hz.
  • What are the humidity levels for nonoperating/storage conditions?
    • Relative humidity for nonoperating or storage conditions ranges from 15% noncondensing to 95% noncondensing.

Product Review

The HP J9805A features an impressive redundancy with eight power supply ports, ensuring high availability and reliability for critical network operations. Its compact 1U size facilitates efficient use of rack space, although the unit's maximum power rating of 3150W and PoE power of 2100W may limit its deployment in environments with higher power demands. The device operates within a broad range of temperatures and humidity levels, accommodating various operating conditions, but its reliance on specific DC voltage inputs could restrict flexibility in power supply configurations.


The HP J9805A is a networking device designed to cater to the needs of modern businesses, offering a blend of power, efficiency, and scalability. This product overview focuses on its hardware specifications to provide a comprehensive understanding of its capabilities and design features. At the heart of the HP J9805A's design is its compatibility with redundant power supply (RPS) ports, featuring eight connections. This ensures uninterrupted power supply and network uptime, critical for businesses where reliability is paramount. The device's power specifications are versatile, accommodating DC voltage with the ability to supply either 12VDC or 54VDC, depending on the installed power supplies. The maximum power rating of the device stands at 3150 W, with a dedicated PoE (Power over Ethernet) power capacity of 2100 W, ensuring sufficient power for network devices. Dimensionally, the HP J9805A is designed to fit standard rack mounts, with a width of 17.4 inches (44.2 cm), a depth of 12.7 inches (32.26 cm), and a height of 1.73 inches (4.4 cm), conforming to the 1U height standard. This compact size makes it suitable for various environments, from small offices to large data centers. Environmental adaptability is another key feature of the HP J9805A. It operates efficiently within a temperature range of 32°F (0°C) to 131°F (55°C), and a relative humidity range of 15% to 95%, noncondensing. This wide range ensures reliability across various climatic conditions. The device is also designed to withstand non-operating/storage temperatures from -40°F (-40°C) to 158°F (70°C) and a relative humidity range of 15% to 95%, noncondensing, safeguarding the device during storage or transportation.
  • Maximum altitude for operation reaches up to 9,842 ft (3 km), ensuring functionality across various geographical locations.
  • The frequency range of the device spans from 50 Hz to 60 Hz, accommodating standard power supply frequencies in most regions.
  • The device's operational efficiency and reliability are further highlighted by its power specifications, including a maximum power rating of 3150 W and PoE power of 2100 W.
In terms of environmental conditions, the HP J9805A is built to operate within a broad spectrum, from minimum operating temperatures of 32°F (0°C) to maximum operating temperatures of 131°F (55°C). It also supports a wide range of operating and non-operating relative humidity levels from 15% to 95%, noncondensing, ensuring durability and reliability in diverse environmental conditions. Overall, the HP J9805A stands out for its power flexibility, compact and efficient design, and environmental adaptability, making it a versatile choice for businesses seeking to enhance their network infrastructure with a device that offers both reliability and high performance.


Item Number HP J9805A
Number of Redundant Power Supply Slots 8
Width 17.4 inches (44.2 cm), 1U rack height
Depth 12.7 inches (32.26 cm), 1U rack height
Height 1.73 inches (4.4 cm), 1U rack height
Minimum Operating Temperature 32°F (0°C)
Maximum Operating Temperature 131°F (55°C)
Operating Humidity Range (Minimum) 15% noncondensing
Operating Humidity Range (Maximum) 95% noncondensing
Storage Temperature Minimum -40°F (-40°C)
Storage Temperature Maximum 158°F (70°C)
Non-Operating Humidity Minimum 15% noncondensing
Non-Operating Humidity Maximum 95% noncondensing
Minimum Altitude for Operation 0 ft (0 km)
Maximum Operating Altitude Up to 9,842 ft (3 km)
DC Voltage Range 12VDC or 54VDC, varies with power supply model
Peak Power Capacity 3150 W
Power over Ethernet (PoE) Capacity 2100 W
Redundant Power Supply Voltage 12VDC or 54VDC
Minimum Frequency 50 Hz
Maximum Frequency 60 Hz

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