Brand: HP/HPE · SKU: 406740-B21 · MPN: 406740-B21 · Category: Components
The HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem is designed for customers desiring an unmanaged direct connection between each server blade within the enclosure and an external network device such as a switch, router or hub. It delivers sixteen internal 1Gb downlinks and sixteen external 1Gb RJ-45 copper uplinks, providing a 1:1 non-switched, non-blocking path between the server and the network. It is ideal for datacenters with existing network infrastructure and ensures wire-speed performance without switching delays. The module is designed to fit into a single I/O bay of the c-Class enclosure and should be installed in pairs to provide redundant uplink paths. Management is unmanaged, with status, power, and temperature monitored via the Onboard Administrator, and it supports I2C communications for iLO. Performance is Full Duplex 1G Ethernet only with a 1:1 non-blocking architecture.
| Blade Type | Single Bay |
|---|---|
| Management | Unmanaged; Status via Onboard Administrator |
| Media Type | Copper RJ-45 |
| Redundancy | Full Redundancy When Installed in Pairs |
| Performance | Full Duplex 1Gbps (no auto-negotiation) |
| Architecture | 1:1 Non-Blocking |
| External Ports | 16x 1Gb RJ-45 Uplinks |
| Internal Ports | 16x 1Gb Downlinks |
| Ethernet LAN data rates | 10, 100, 1000 Mbit/s |
| Warranty | Varies by seller (e.g., 1 Year DiscTech) |
| Weight | 299 g or 0.66 lb |
| Dimensions | 7.5 x 1.1 x 10.5 in (W x D x H) |
The HP 406740-B21 is a 1Gb Ethernet Pass-Thru Module designed for the HP BladeSystem c-Class enclosure, providing direct, unmanaged, wire-speed connectivity between server blades and external switches via 16 RJ-45 ports. It features a 1:1 non-blocking architecture and requires installation in pairs for redundancy.
Yes, this HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem (406740-B21) is 100% genuine HP/HPE hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the 406740-B21.