Detailed Specifications
HPE 879491-001 Ethernet InfiniBand 40/50 Gb 2-Port 547FLR-QSFP Adapter
Overview
The HPE 879491-001 is a high-bandwidth network adapter engineered for demanding server environments such as HPC, AI compute clusters or storage-fabric nodes. It features two QSFP-type ports supporting either 40 Gb/s or 50 Gb/s link speeds, enabling extremely high throughput for inter-rack or server-to-server connectivity. The adapter installs in the dedicated 547 FLR slot of supported server platforms, preserving standard PCIe expansion slots. Advanced offload features and low-latency architecture make it suited for both InfiniBand and Ethernet fabrics. With support for dual high-speed uplinks and flexible media, it enables direct server interconnect or uplink to aggregation switches in data-centre topologies.
Key Features
Two QSFP ports supporting 40 Gb/s or 50 Gb/s link speeds
547 FLR form-factor designed for blade/mezzanine installation
Suitable for both Ethernet and InfiniBand fabrics
High-throughput adapter for server compute or storage fabrics
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 879491-001 |
| Product Type | Ethernet/InfiniBand 40/50 Gb 2-Port 547FLR-QSFP Adapter |
| Port Count | 2 |
| Supported Link Speeds | 40 Gb/s and 50 Gb/s per port |
| Port Type | QSFP |
| Form Factor | 547 FLR (server-mezzanine slot) |
| Host Interface | Mezzanine/FLR server slot (equivalent to PCIe host link) |
| Typical Dimensions (W×D×H) | ~7.0″ × ~8.5″ × ~1.0″ |
| Typical Weight | ~1 lb |
| Media Support | Optical QSFP or passive copper breakout cables |
| Use Case | High-density interconnect in compute/storage servers |
| Fabric Protocols | Ethernet and InfiniBand fabrics |
| Compatible Platforms | HPE servers with 547FLR slot support |
| Expansion Slot Conserving | Yes |
