How many ports are available on the HPE InfiniBand FDR Ethernet 547FLR-QSFP adapter?

The adapter provides two QSFP ports that operate as dual-function InfiniBand or Ethernet interfaces. The ports are defined in the specifications as 50 Gb Ethernet or InfiniBand FDR QSFP x 2, and as 2x QSFP dual-function InfiniBand or Ethernet. This gives each server two high-bandwidth wired links for fabric connectivity.

What is the host interface for the HPE 879482-B21 adapter?

The HPE 879482-B21 uses a PCI Express 3.0 x8 host interface. It is aligned with the PCIe 3.0 specification and implemented as a plug-in card in a FlexibleLOM form factor. This interface provides the necessary bandwidth to support the adapter’s 40 and 50 Gb per second Ethernet and 56 Gb per second FDR InfiniBand capabilities.

Which technology platform is the HPE 879482-B21 based on?

According to the specifications, the HPE InfiniBand FDR Ethernet 40/50Gb 2-port 547FLR-QSFP Adapter 879482-B21 is based on Mellanox ConnectX-5 technology. This defines the underlying controller silicon and feature set, aligning the adapter with other ConnectX-5 based network solutions for interoperability and driver support considerations.

What type of connectivity does the HPE 879482-B21 provide?

The adapter delivers wired connectivity using QSFP interfaces. It is described as using 2 x 50 Gb Ethernet or InfiniBand FDR QSFP ports and wired connectivity technology. This makes it suitable for environments that depend on cabled high-speed links for consistent performance and structured cabling using QSFP-based transceivers or cables.

879482-B21 - HPE 879482-B21 40/50Gb 2-port QSFP Network adapter

Name: HPE 879482-B21 40/50Gb 2-port QSFP Network adapter
Brand: HPE
SKU: 879482-B21
Price: 162 USD
Availability: InStock

879482-B21 - HPE 879482-B21 40/50Gb 2-port QSFP Network adapter | US IT Hardware

Product overview

The HPE InfiniBand FDR Ethernet 40/50Gb 2-port 547FLR-QSFP Adapter 879482-B21 is a dual-port network adapter designed to deliver high-bandwidth connectivity for demanding environments. It supports both 56 Gb per second FDR InfiniBand and 40 or 50 Gb per second Ethernet protocols, providing flexibility for different fabric deployments. The adapter uses two QSFP dual-function InfiniBand or Ethernet ports and connects via a PCI Express 3.0 x8 interface. Based on Mellanox ConnectX-5 technology, it is built in a FlexibleLOM form factor for integration into compatible HPE systems. With wired connectivity, support for 40 and 50 Gigabit Ethernet, and FDR InfiniBand link support, this adapter is suited to high-performance and bandwidth-intensive workloads that require reliable, low-latency interconnects between servers and switches.

Supports 56Gb FDR InfiniBand and 40/50Gb Ethernet
Dual QSFP ports with dual InfiniBand or Ethernet function
PCI Express 3.0 x8 host interface connectivity
FlexibleLOM plug-in card form factor for HPE servers
Wired high-bandwidth connectivity via QSFP interfaces
Based on Mellanox ConnectX-5 adapter technology

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	879482-B21
Brand	HPE
Condition	Refurbished
Model	547FLR-QSFP
Part Class	Dual function InfiniBand/Ethernet adapter based on Mellanox ConnectX-3 Pro
Technology	Mellanox ConnectX-3 Pro
Form Factor	FlexibleLOM
Adapter Type	InfiniBand FDR / Ethernet
Product Line	HPE InfiniBand Options for HPE ProLiant and Apollo Servers
Product Type	2-port network adapter
Supported Protocols	InfiniBand FDR; Ethernet 40GbE; Ethernet 50GbE

Best for

High-performance computing
Suitable for high-performance computing clusters that require 56 Gb per second FDR InfiniBand or 40 and 50 Gb per second Ethernet connectivity over dual QSFP ports.
Data center fabrics
Fits data center environments needing dual 40 or 50 Gb per second Ethernet ports on a PCIe 3.0 x8 FlexibleLOM adapter to support high-bandwidth server interconnects.
Mixed InfiniBand and Ethernet networks
Supports 56 Gb per second FDR InfiniBand and 40 or 50 Gb per second Ethernet protocols, enabling deployment in infrastructures that combine InfiniBand and Ethernet fabrics.
HPE FlexibleLOM server integration
Designed in a FlexibleLOM form factor with PCIe 3.0 x8 interface, making it appropriate for HPE servers that support FlexibleLOM network adapters.
QSFP-based connectivity
Provides two QSFP dual-function InfiniBand or Ethernet ports, useful where standardized QSFP interfaces are required for high-speed wired links.

Bandwidth	40/50 Gb/s
Data Transfer Rate	40/50 Gbps

Port Type	Dual-port QSFP
Host Interface	PCI Express 3.0 x8
Interface Type	QSFP
Number of Ports	2 ports
Network Technology	50GBASE-X
Total Number of Ports	2

HPE 879482-B21 40/50Gb 2-port QSFP Network adapter

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