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by Hp
Product Line: HP ProCurve Switch
Product Type: Switch
Original price $0.00 - Original price $246.00
Original price
$0.00 - $246.00
Current price $246.00
Title: Used

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Product Description

The J9727A HP features 20 RJ-45 autosensing 10/100/1000 PoE+ ports compliant with IEEE 802.3 Type 10BASE-T, alongside 2 module slots, 1 stacking module slot, and a dual-personality port (RJ-45 or USB micro-B) for flexible connectivity options. It operates within a temperature range of 0° to 55°C and supports a maximum power rating of 475 W, with 370 W dedicated to PoE power, accommodating demanding network environments. Performance-wise, it delivers low latency with < 9.0 µs for 100 Mb, < 3.3 µs for 1000 Mb, and < 3.3 µs for 10 Gbps traffic, ensuring efficient data processing and transmission.

Key Feature for the J9727A

  • What are the available ports on this networking device?
    The device includes 20 RJ-45 autosensing 10/100/1000 PoE+ ports, 2 module slots, 1 stacking module slot, 1 dual-personality port (RJ-45 or USB micro-B), 1 USB 1.1 port, and 1 RJ-45 out-of-band management port.
  • How does the device handle different environmental conditions?
    It operates between 0° to 55°C (32° to 131°F) and can withstand non-operating temperatures from -40° to 70°C (-40° to 158°F). Relative humidity tolerance is 15% to 95%, noncondensing, and it can function up to an altitude of 3 km (10,000 ft).
  • What are the dimensions of the device?
    The dimensions are 4.45 cm (1.75 in) in height, 44.25 cm (17.42 in) in width, and 33.6 cm (13.23 in) in depth.
  • Can you provide details on the device's power requirements and consumption?
    It requires 100 to 240 V ac, with a maximum power rating of 475 W. Idle power consumption is 42 W. PoE power is rated at 370 W, and it has a maximum heat dissipation of 377.69 kJ/hr (358 BTU/hr).
  • What certifications does the networking device have?
    The device is certified with a Silver rating.
  • What is the device's performance in terms of latency?
    Latency is less than 9.0 µs for 100 Mb (FIFO 64-byte packets), less than 3.3 µs for 1000 Mb and 10 Gbps (FIFO 64-byte packets).
  • How does the device manage noise levels?
    The acoustic power is 61 dB with a pressure level of 44.9 dB.
  • What is the frequency range supported by this device?
    The device supports a frequency range of 50/60 Hz.
  • What type of management ports are available on this device?
    It features 1 RJ-45 out-of-band management port and 1 USB 1.1 port for management purposes.
  • What are the specific uses of the dual-personality port?
    The dual-personality port can function as either an RJ-45 port or a USB micro-B port, providing flexibility in connections.

Product Review

The HP J9727A switch offers a versatile range of connectivity options, including 20 autosensing 10/100/1000 PoE+ ports, module slots for expansion, and a dual-personality port for flexible uplink options. However, its power consumption, with a maximum rating of 475 W and idle power of 42 W, may be a concern for energy-conscious deployments. Additionally, the device's noise level, with an acoustic power of 61 dB, could be considered high for environments where noise minimization is crucial.


The HP J9727A is a networking switch designed to accommodate a variety of needs in enterprise environments. It features 20 RJ-45 autosensing 10/100/1000 PoE+ ports compliant with IEEE 802.3 Type 10BASE-T, offering flexibility for devices requiring power over Ethernet. Additionally, the device comes with two module slots and a stacking module slot, enhancing its expandability and integration into larger network infrastructures. A dual-personality port provides the option to use either RJ-45 or USB micro-B connections, alongside a USB 1.1 port for peripheral connectivity. For management purposes, it includes an RJ-45 out-of-band management port. Dimensions of the HP J9727A make it suitable for standard rack installations, measuring 4.45 cm in height, 44.25 cm in width, and 33.6 cm in depth. The device operates effectively within a temperature range of 0° to 55°C and can withstand a non-operating temperature range of -40° to 70°C. Humidity tolerance ranges from 15% to 95%, noncondensing, for both operating and storage conditions, ensuring reliability in varied environments. With an altitude tolerance of up to 3 km, it suits installations in high-altitude locations. Acoustic levels are maintained with a power sound level of 61 dB and a pressure level of 44.9 dB, minimizing noise in workspaces. The switch operates on a frequency of 50/60 Hz and is Silver certified, indicating efficient power usage. It has a maximum heat dissipation of 377.69 kJ/hr and supports a voltage range of 100 to 240 V ac. With a maximum power rating of 475 W and an idle power consumption of 42 W, it balances performance and energy efficiency. The available PoE power is 370 W, suitable for powering multiple devices. Performance metrics include latency measures across different data rates: less than 9.0 µs for 100 Mb, less than 3.3 µs for 1000 Mb, and also less than 3.3 µs for 10 Gbps, all measured with FIFO 64-byte packets. These specifications ensure swift data processing and minimal delay, essential for applications requiring high-speed data transfer. Key features include: -
  • 20 RJ-45 autosensing 10/100/1000 PoE+ ports.
  • Two module slots and one stacking module slot for easy expansion.
  • Dual-personality port for flexible connectivity options.
The HP J9727A is engineered to meet the demands of modern network environments, offering a combination of performance, expandability, and efficiency. Its design accommodates a wide range of operating conditions, ensuring reliability and longevity in various installation scenarios. This switch is an ideal choice for businesses looking to deploy a versatile networking solution that can scale with their growing needs.


Item Number and BrandHP J9727A
Interface Count20 PoE+ auto-detecting 10/100/1000 RJ-45 ports (compliant with IEEE 802.3 Type 10BASE-T)
Expansion Slots2
Stacking Slot Count1
Hybrid Port1 (either RJ-45 or USB micro-B connectivity)
USB InterfaceVersion 1.1
Management Port TypeRJ-45 for network management
Height4.45 cm (1.75 inches)
Width44.25 cm (17.42 inches)
Depth33.6 cm (13.23 inches)
Operation Temperature Range0°C to 55°C (32°F to 131°F)
Operational Humidity Range15% to 95% (non-condensing)
Storage Temperature Range-40°C to 70°C (-40°F to 158°F)
Storage Humidity Range15% to 95% (non-condensing)
Maximum Operating AltitudeUp to 3 km (10,000 feet)
Sound Power Level61 dB; Pressure: 44.9 dB
Electrical Frequency50/60 Hz
Efficiency CertificationSilver by
Heat Output377.69 kJ/hr (358 BTU/hr)
Input Voltage Range100 to 240 V AC
Peak Power Consumption475 W
Power Consumption in Idle42 W
Power Over Ethernet Budget370 W
Latency for 100 Mb Traffic< 9.0 µs (64-byte packets in FIFO)
Latency for 1 Gb Traffic< 3.3 µs (64-byte packets in FIFO)
Latency for 10 Gb Traffic< 3.3 µs (64-byte packets in FIFO)

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