HPE J9550 24-port Gig-T v2 zl Expansion Module
Overview
The HPE J9550 is a 24-port Gigabit Ethernet v2 zl module designed to expand the connectivity and functionality of HPE’s modular chassis switches. It is engineered specifically for the HPE E5400 and E8200 zl Switch Series, providing a scalable solution for increasing port density within an existing network infrastructure. This module addresses the need for seamless, high-density network expansion in enterprise campus and large branch office environments without requiring a complete hardware replacement. This expansion module delivers reliable Layer 2 and Layer 3 switching capabilities directly from the parent chassis. Each of its 24 ports supports autosensing 10/100/1000Base-T speeds, ensuring flexible connectivity for a variety of endpoint devices such as workstations, IP phones, and wireless access points. The module’s integration into the zl switch architecture allows it to leverage the chassis’s high-performance backplane for efficient data throughput and low-latency communication between ports. Physically, the J9550 installs into any open I/O module slot within a compatible E5400 or E8200 series chassis. Its plug-in form factor simplifies installation and hot-swappable capability allows for upgrades or replacements without significant network downtime. Once installed, the module is managed centrally through the main switch’s command-line interface or web-based management platform, ensuring consistent policy enforcement and a unified management experience across the entire chassis.
Key Features
- Adds 24 autosensing 10/100/1000Base-T Ethernet ports.
- Designed for HPE E5400 and E8200 zl Switch Series chassis.
- Hot-swappable design allows for uninterrupted service.
- Integrates seamlessly with the chassis backplane.
- Supports IEEE 802.3af Power over Ethernet (PoE).


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