Detailed Specifications
HPE 657787-B21 B22HP Fabric Extender
Overview
The HPE 657787-B21 is a fabric-extender module designed for blade-server enclosures, offering 16 internal down-links to server blades and 8 external uplink ports to a parent switch fabric. It enables network consolidation at the server-edge by logically extending the parent switch's fabric into the enclosure, simplifying management and reducing edge switch count. Typically deployed in high-density blade-server racks, the unit supports Ethernet, FCoE and data-centre bridging protocols, fitting into modular rack-mount infrastructures. The module is compatible with certain blade-server chassis and integrates with existing management frameworks for unified operation of blade I/O and network fabrics.
Key Features
16 internal down-links to server blades
8 external uplink ports (10 Gb SFP+ form-factor)
Logical extension of parent switch fabric into blade enclosure
Supports Ethernet, FCoE and data-centre bridging (DCB) features
Enables reduction of separate access-switch layers at server-edge
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 657787-B21 |
| Product Type | Fabric Extender Module |
| Internal Host Links | 16 internal links (1/10 Gb each) |
| External Uplink Ports | 8 × 10 Gb SFP+ ports |
| Supported Protocols | Ethernet, Fibre Channel over Ethernet (FCoE), Data Centre Bridging (DCB) |
| Deployment Form Factor | Blade-server enclosure module |
| Compatibility | Blade enclosure systems supporting module |
| Typical Power Consumption | Approx. 70 W |
| Dimensions (H × W × D) | Approx. 1.1 in × 10.5 in × 3.7 in |
| Weight | Approx. 2.8 lbs |
| Operating Temperature | 10 °C to 40 °C |
| Humidity Range | 10% to 95% non-condensing |
| RoHS/WEEE Compliance | Yes |
| Use Case | Server-chassis I/O consolidation, data-centre blade racks |
