HPE 1Gb Ethernet Pass-Thru Module 16-Port RJ-45 406740-B21

BRAND NEW. FACTORY SEALED. RETAIL BOXED. FULL HPE WARRANTY INCLUDED. AVAILABLE FROM CHICAGO COMPUTER SUPPLY.

Overview

For blade environments that rely on external switching, pass-through modules provide a simple, direct networking approach without internal switching complexity.

The HPE 406740-B21 1Gb Ethernet Pass-Thru Module is designed for c-Class BladeSystem enclosures. It delivers 16 direct 1Gb connections from server blades to external network devices using RJ-45 ports, ensuring predictable performance with no switching inside the enclosure.

Key Features

• 16 × 1Gb RJ-45 external uplink ports
• 16 × internal 1Gb downlinks (1:1 mapping)
• Non-blocking, wire-speed performance
• No switching or configuration required
• Full-duplex Gigabit Ethernet
• Designed for c-Class BladeSystem
• Monitored via Onboard Administrator
• Ideal for simple network architectures

Technical Specifications

Brand: HPE
Model: 1Gb Ethernet Pass-Thru Module
Part Number: 406740-B21
Product Type: Pass-Through Module

Device Type

Blade Pass-Through Networking Module

Ports

• 16 × RJ-45 1Gb Ethernet (external)
• 16 × internal blade connections

Network Technology

Gigabit Ethernet (1GbE)

Data Transfer Rate

Up to 1 Gbps per port

Connectivity

Wired

Media Support

Twisted pair (RJ-45 Ethernet)

Architecture

1:1 non-blocking pass-through

Management

• No switching or LAN management
• Monitoring via Onboard Administrator
• Application
• Direct blade-to-network connectivity
• External switch-based environments

Compatibility

HPE c-Class BladeSystem Enclosures

Use Cases

• Data centers using external switches for all network control
• Environments requiring simple, predictable connectivity
• Legacy or low-bandwidth deployments
• Redundant network path configurations (used in pairs)

Why Choose HPE 406740-B21

• Simple, direct connectivity with no configuration
• Reliable 1:1 mapping between blades and network
• Eliminates internal switching complexity
• Cost-effective for basic networking needs
• Compatible with existing infrastructure
• Easy monitoring via enclosure tools
• Brand new with full HPE warranty

FAQs

Is this a switch module?
No. It is a pass-through module with no switching capability.

How many ports does it have?
It provides 16 RJ-45 Gigabit Ethernet ports.

Does it require configuration?
No. It operates without any network configuration.

Should it be installed in pairs?
Yes, typically two modules are used for redundancy.

What type of connections does it use?
Standard RJ-45 Ethernet cables.