HPE J9550

(J9550-61001) 24-Port Gig-T v2 zl Expansion Module

The HPE J9550A 24-Port Gig-T v2 zl Expansion Module is designed to seamlessly extend the port capacity of high-performance modular switches, specifically the HPE E5400 zl and E8200 zl series. Utilizing standard RJ-45 Ethernet interfaces, it provides 24 gigabit-capable ports supporting 10/100/1000BASE-T over copper cabling. This Expansion Module simplifies network scaling without requiring full chassis replacement, offering a cost-effective solution to accommodate growing connectivity needs in enterprise environments. Its compact plug-in form—referred to as "zl v2"—ensures easy hot-swap integration for minimal disruption during upgrades.

Features

The HPE J9550A module operates within the zl series ecosystem, enabling manufacturers to modularly increase port density as needed. With support for auto-MDIX and full-duplex operation across all 24 ports, the module ensures reliable data throughput of up to 1 Gbps per port, making it suitable for a wide range of workloads—from general-purpose traffic to server and storage connectivity Engineered around IEEE 802.3, 802.3u, and 802.3ab standards, the eExpansion Module guarantees interoperability across wired Ethernet, Fast Ethernet, and Gigabit Ethernet networks . Its plug-in design allows admins to install or replace the module without powering down the switch chassis, thereby facilitating dynamic scaling and minimizing network downtime. Compatible with both E5400 zl and E8200 zl platforms, the J9550A ensures uniformity and flexibility in deployment strategies 

Advanced Options

Advanced features—such as VLAN segmentation, access control (like 802.1X), and SNMP-based management—are supported through the parent zl switch’s software suite, enabling enhanced security, QoS, and monitoring capabilities This makes the module a robust choice for enterprise campuses, branch offices, or growing data centers with evolving port requirements.The HPE J9550A Expansion Module is built for reliability in enterprise-grade environments. Its modular plug-in design allows installation or replacement without powering down the chassis, ensuring continuous network availability. Backed by standardized Ethernet protocols and IEEE compliance, each port delivers stable 1 Gbps performance optimized by auto-negotiation and auto-MDIX capabilities.