The HP J9585A is a high-performance networking switch designed to meet the demands of modern enterprise networks. Equipped with multiple ports and advanced features, it offers efficient and reliable connectivity solutions. The hardware specifications of the HP J9585A make it suitable for a wide range of applications, from small businesses to large enterprises. At the heart of its connectivity options are 24 RJ-45 autosensing ports that support 10/100/1000 Mbps connections, complying with IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, and IEEE 802.3ab Type 1000BASE-T standards. These ports offer flexibility with half or full duplex modes for 10BASE-T/100BASE-TX and full duplex mode only for 1000BASE-T. Additional connectivity is provided through 2 RJ-45 10-GbE ports that adhere to IEEE 802.3an-2006 Type 10GBASE-T standards, featuring full duplex mode to handle high-bandwidth applications efficiently.

• 1 RJ-45 serial console port enables direct device management.
• 1 RJ-45 out-of-band management port offers an alternative access route for network management.
• 1 Stacking module slot allows for the integration of multiple units, simplifying network management and scalability.

Designed to fit in standard racks, the HP J9585A measures 46.74 cm in width, 44.27 cm in depth, and 4.32 cm in height, conforming to a 1U rack unit size. It has a weight of 7.17 kg, making it relatively easy to install and manage. The switch includes a J9582A fan tray in its fan tray slot, ensuring efficient cooling even under heavy load. Powering the HP J9585A is a J9581A (HP X311 400 W 100-240 V AC to 12 V DC power supply), designed to operate across a wide range of voltages (100-127/200-240 V AC) and frequencies (50/60 Hz). The switch's power efficiency is highlighted by its idle power consumption of 70 W and a maximum power rating of 127 W. Maximum heat dissipation stands at 434 BTU/hr, indicating its operational efficiency and reliability. The HP J9585A operates optimally within a temperature range of 0° to 55°C and can withstand non-operating temperatures from -40° to 70°C. It maintains functionality in environments with up to 95% relative humidity at 40°C when operating and 90% at 65°C during storage. Its design also accommodates operation at altitudes up to 3 km, ensuring versatility across various installation environments. In summary, the HP J9585A is designed to support high-speed networking and offers a comprehensive suite of features for efficient data handling and connectivity. Its array of ports, combined with advanced management options and environmental resilience, make it a reliable choice for modern networking needs, ensuring high performance and scalability.

Part Number and Manufacturer	HP J9585A
Interface	24 x 10/100/1000 Mbps auto-negotiation Ethernet ports (compliant with IEEE 802.3, 802.3u, and 802.3ab)
Speed and Duplex Settings	Auto-MDI/MDIX on all ports; Full-duplex on 1000BASE-T and 10GBASE-T ports; Half/full-duplex on 10BASE-T/100BASE-TX ports
High-Speed Ports	2 x 10-Gigabit Ethernet ports (compliant with IEEE 802.3an-2006)
Console Port	1 x RJ-45 serial interface for management
Management Port	1 x RJ-45 for out-of-band network management
Expansion Slot	1 slot for network expansion module
Width	46.74 cm (18.4 inches)
Depth	44.27 cm (17.43 inches)
Height	4.32 cm (1.7 inches), 1U rack unit
Weight	7.17 kg (15.8 lbs)
Cooling	1 x J9582A fan tray, single slot for fan tray
Power Supply	1 x J9581A, HP X311 400W AC to DC converter (100-240 V AC input)
Heat Output	434 BTU/hour (457.87 kJ/hour)
Input Voltage Range	100-127 / 200-240 V AC
Current Consumption	6 A at 100-127 V; 3 A at 200-240 V
Power Consumption (Idle)	70 W
Power Consumption (Max)	127 W
Frequency	50/60 Hz
Operational Temperature Range	0° to 55°C (32° to 131°F)
Operational Humidity Range	15% to 95% at 40°C (104°F), non-condensing
Storage Temperature Range	-40° to 70°C (-40° to 158°F)
Storage Humidity Range	15% to 90% at 65°C (149°F), non-condensing
Maximum Operating Altitude	Up to 3,000 m (10,000 ft)