HPE 665240-B21 – Ethernet 1Gb 4-Port 366FLR Adapter

HPE 665240-B21 – Ethernet 1Gb 4-Port 366FLR Adapter

Overview

HPE 665240-B21 is a quad-port Gigabit Ethernet adapter designed for HPE ProLiant servers requiring reliable multi-port network connectivity in enterprise environments. It is commonly used in virtualization, server consolidation, and segmented network deployments where multiple Ethernet connections are required from a single adapter.

The adapter uses the Intel I350 Ethernet controller and operates on a FlexibleLOM form factor with PCI Express 2.1 x4 interface support. It delivers four 1GbE RJ45 ports with support for advanced networking capabilities including VLAN tagging, jumbo frames, checksum offload, and virtualization acceleration.

It is typically deployed in HPE Gen8, Gen9, and select Gen10 server environments for data center networking, infrastructure services, and enterprise LAN connectivity where low power consumption and stable throughput are important.

Typical Deployment Scenarios

• Virtualization host network segmentation
• Multi-port enterprise LAN connectivity
• Data center rack server deployments
• Infrastructure and application servers
• HPE ProLiant virtualization clusters

Specifications

Compatibility / Ecosystem

Compatible with select HPE ProLiant Gen8, Gen9, and Gen10 server platforms supporting FlexibleLOM architecture. Designed for enterprise Ethernet environments using standard RJ45 copper network infrastructure.