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HPE J9991A Expansion Module - 24-Port RJ-45 - 20x Gigabit + 4 x 10GbE - For HP 5400R zl2 Switch Series

SKU: J9991A
UPC: 888182604298
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MSRP: $10,591.00
$10,591.95
$7,605.95
Save: $2,985.05 (28.18%)
Warranty Information: Covered by Manufacturer
Condition: New
Width: 26.16 (cm)
Height: 4.45 (cm)
Depth: 20.65 (cm)

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Product Features

Description

Product Overview

The HPE J9991A expansion module is a dedicated networking accessory designed to extend the port density and connectivity options of compatible HP switch series. This module integrates seamlessly into the existing infrastructure, providing additional RJ-45 ports for data networking applications.

Engineered for reliability and performance, it supports both Gigabit and 10 Gigabit Ethernet over standard twisted-pair cabling. The module is built to meet the demands of business networks, offering a straightforward upgrade path for expanding network capacity without replacing core switching hardware.

This section brings together practical product details such as Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.

Optics
10GbE
Link Speed
RJ-45Twisted Pair
Port Configuration
Total Ports24
Gigabit Ports20 x RJ-45 1000Base-T LAN
10GbE Ports4 x RJ-45 10GBase-T LAN
Network Performance
Ethernet TechnologyGigabit Ethernet, 10 Gigabit Ethernet
Network Technology1000Base-T, 10GBase-T
Maximum Data Transfer Rate10 Gbit/s
Physical & Compatibility
Connector TypeRJ-45
Media TypeTwisted Pair
CompatibilityHP 5400R zl2 Switch Series

Technical Overview

This expansion module delivers a total of 24 RJ-45 ports, configured as 20 ports of Gigabit Ethernet (1000Base-T) and 4 ports of 10 Gigabit Ethernet (10GBase-T). It supports a maximum data transfer rate of 10 Gbit/s, enabling high-speed network segments for bandwidth-intensive tasks.

The module uses twisted-pair copper cabling, making it compatible with existing Cat5e, Cat6, or higher cabling infrastructure. It is designed for data networking applications, providing a cost-effective solution for adding ports to supported HP switch chassis.

This section brings together practical product details such as Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.

Height1.75" (44.45 mm)
Width10.30" (261.62 mm)
Depth8.13" (206.50 mm)
Weight2.07 lb (938.94 g)
RJ-45 ConnectorsTwisted Pair MediaHot-Pluggable Design

Key Product Advantages

The HPE J9991A expansion module offers several distinct advantages for network administrators looking to scale their infrastructure efficiently.

Port Density Expansion

Adds 24 additional RJ-45 ports to compatible HP switches, increasing connectivity for more devices or network segments without requiring a full switch replacement.

  • 20 Gigabit Ethernet ports for standard devices
  • 4 10GbE ports for high-speed uplinks or servers

Backward Compatibility

Supports existing twisted-pair cabling, allowing integration into current network setups without rewiring. The RJ-45 connectors are industry-standard for easy connectivity.

  • Works with Cat5e/Cat6/Cat6a cables
  • Maintains network consistency

Deployment / Use Cases

This expansion module is ideal for environments where network port capacity needs to grow without overhauling the core switching infrastructure. It suits various deployment scenarios in enterprise and data center settings.

Common use cases include adding ports for new workstations, connecting additional servers with 10GbE links, or expanding connectivity in server racks. The module is specifically compatible with the HP 5400R zl2 Switch Series, making it a targeted upgrade for those platforms.

Enterprise Network Expansion

Deploy in office networks to connect more devices like computers, printers, and IP phones as the organization grows, leveraging existing cabling.

Data Center Rack Integration

Install in server racks to provide additional high-speed ports for servers or storage arrays, using the 10GbE ports for improved throughput.

Physical Profile

The module has a compact form factor with dimensions of 1.75" height, 10.30" width, and 8.13" depth, designed to fit into switch chassis slots. It weighs approximately 2.07 pounds, making it lightweight for easy installation. The environmentally friendly design supports sustainable IT practices.

The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.75" (44.45 mm), 10.30" (261.62 mm), 8.13" (206.50 mm), 2.07 lb (938.94 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.

Dimensions
Width
10.30" (261.62 mm)
Depth
8.13" (206.50 mm)
Height
1.75" (44.45 mm)
Weight
2.07 lb (938.94 g)
[custom-highlights]

Highlights

  • 24 total RJ-45 ports for expanded network connectivity
  • 20 Gigabit Ethernet ports supporting 1000Base-T technology
  • 4 10 Gigabit Ethernet ports for high-speed 10GBase-T links
  • Maximum data transfer rate of 10 Gbit/s
  • Uses twisted-pair copper cabling (Cat5e/Cat6/Cat6a)
  • Compatible with HP 5400R zl2 Switch Series
  • Hot-pluggable design for easy installation and maintenance
  • Compact dimensions: 1.75" H x 10.30" W x 8.13" D
  • Environmentally friendly construction
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerHewlett Packard Enterprise
Manufacturer Part NumberJ9991A
Brand NameHPE
Product NameExpansion Module
Product TypeExpansion Module
Packaged Quantity1
Technical Information
Application/UsageData Networking
Interfaces/Ports
Total Number of Ports24
Connector TypeRJ-45
Interfaces/Ports Details20 x RJ-45 1000Base-T LAN,4 x RJ-45 10GBase-T LAN
Media & Performance
Media Type SupportedTwisted Pair
Ethernet TechnologyGigabit Ethernet,10 Gigabit Ethernet
Network Technology1000Base-T,10GBase-T
Maximum Data Transfer Rate10 Gbit/s
Physical Characteristics
Height1.75" (44.45 mm)
Width10.30" (261.62 mm)
Depth8.13" (206.50 mm)
Weight (Approximate)2.07 lb (938.94 g)
Miscellaneous
CompatibilityHP 5400R zl2 Switch Series
Environmentally FriendlyYes
[/custom-specifications][custom-faq]

FAQ

What switch models is the HPE J9991A expansion module compatible with?

The HPE J9991A expansion module is specifically designed for compatibility with the HP 5400R zl2 Switch Series. It integrates into these switches to add additional RJ-45 ports, providing a seamless upgrade for expanding network capacity without replacing the entire switch chassis.

How many ports does this expansion module provide, and what are their speeds?

This module offers a total of 24 RJ-45 ports. It includes 20 ports that operate at Gigabit Ethernet speeds (1000Base-T) and 4 ports that support 10 Gigabit Ethernet (10GBase-T). This configuration allows for a mix of standard and high-speed connections in your network.

What type of cabling does the HPE J9991A module support?

The HPE J9991A expansion module supports twisted-pair copper cabling, such as Cat5e, Cat6, or Cat6a cables. It uses RJ-45 connectors, making it compatible with existing network infrastructure and easy to deploy without specialized fiber optics.

What is the maximum data transfer rate of this expansion module?

The maximum data transfer rate for the HPE J9991A expansion module is 10 Gbit/s. This applies to the 10GbE ports, enabling high-speed network segments for applications like server connections or uplinks that require greater bandwidth.

What are the physical dimensions and weight of the module?

The module measures 1.75 inches in height, 10.30 inches in width, and 8.13 inches in depth, with an approximate weight of 2.07 pounds. Its compact size allows it to fit into switch chassis slots efficiently, and the lightweight design facilitates easy handling during installation.

Is this expansion module hot-pluggable?

Yes, the HPE J9991A expansion module is designed with hot-pluggable support, allowing it to be installed or removed from a compatible switch without powering down the system. This feature minimizes network downtime and simplifies maintenance in live environments.

[/custom-faq]
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HPE J9991A Expansion Module - 24-Port RJ-45 - 20x Gigabit + 4 x 10GbE - For HP 5400R zl2 Switch Series
MSRP: $10,591.00
$10,591.95
$7,605.95
Save: $2,985.05 (28.18%)
Out of stock