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732456-B21
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- HPE FlexFbr 10Gb 2P 556FLR-SFP+FIO Adptr
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732456-B21
HPE FlexFbr 10Gb 2P 556FLR-SFP+FIO Adptr
$313.61
$225.80
21 in Global Warehouse
$225.80
28% off
TRUSTED, TRIED, PROVEN
732456-B21 Overview
732456-B21 is a high-performance Ethernet adapter engineered for data centers and high-speed workstations. It delivers a reliable 10Gbps data rate via a PCIe connection interface, and it is fully compatible with major operating systems such as Windows, Linux, and macOS while supporting critical network protocols including TCP/IP, UDP, iSCSI, and NFS.
This internal PCIe card is designed to meet the demands of both enterprise and small office networks, featuring support for auto-negotiation, Wake-on-LAN, jumbo frames, and QoS. Its robust build quality and optimized performance make it ideal for environments that require high-speed and dependable network connectivity.
What is the price of 732456-B21?
Lowest price of 732456-B21 is $ 225.80. Shop now! Get further exclusive discounts with bulk quotation on 732456-B21
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732456-B21 Specifications
| Product Type | Network Adapter |
| Adapter Type | Ethernet |
| Data Rate | 10Gbps |
| Connection Interface | PCIe |
| Supported Protocols | TCP/IP, UDP, iSCSI, NFS |
| Form Factor | Internal PCIe Card |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Windows, Linux, macOS |
| Max Speed | 10Gbps |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | N/A |
| Connector Type | RJ-45 |
| Maximum Range | N/A |
| Bus Type | PCIe x4 |
| Product Name | 732456-B21 High Performance Ethernet Adapter |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
732456-B21 Use Case
Virtualized Data Center Network Consolidation
In large-scale VMware ESXi clusters hosting multi-tenant workloads, the 732456-B21 HPE FlexFabric 10Gb 2-port 556FLR-SFP+ adapter consolidates traffic across two 10GbE SFP+ uplinks. This reduces physical switch port consumption by up to 40%, lowers VM network latency by 20%, and simplifies network management, delivering seamless VM mobility and scalable bandwidth in enterprise data centers.
High-Performance Compute Cluster Interconnect
For HPC environments running MPI-based simulations, the 732456-B21 adapter provides dual 10Gb SFP+ fabric ports for low-latency, high-throughput node interconnect. By enabling sub-1µs latency and hardware-offloaded packet handling, it boosts parallel compute performance by 25% and ensures deterministic data transfer for time-sensitive scientific workloads.
Accelerated SAN Connectivity for Mission-Critical Databases
In enterprise SAN deployments with HPE 3PAR storage arrays powering high-transaction SQL databases, the 732456-B21 adapter delivers Fibre Channel over Ethernet (FCoE) on dual 10Gb links. This drives a 1.5× increase in IOPS, cuts storage latency by 30%, and leverages hardware offload for secure, resilient data transport—optimizing database throughput and uptime.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Bus Type | PCIe x4 | PCIe x4 | PCIe x4 | PCIe x4 | PCIe x4 |
| Compatibility | Windows, Linux, macOS | Windows, Linux, macOS | Windows / Linux / macOS | Windows, Linux, macOS | Windows, Linux, macOS |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Data Rate | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Depth | N/A | N/A | 0.5 inches | 1.2 inches | N/A |
| Form Factor | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card |
| Height | N/A | N/A | 0.7 inches | 0.5 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Maximum Range | N/A | N/A | 100 meters | N/A | 100 meters |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | N/A | 6W | 15W | 5W |
| Product Name | 700760-B21 High Performance Network Adapter | 732456-B21 High Performance Ethernet Adapter | 879383-B21 High-Performance Ethernet Adapter | 867328-B21 High Performance Ethernet Adapter | Q6M15A 10Gbps PCIe Ethernet Adapter |
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Supported Protocols | TCP/IP, UDP | TCP/IP, UDP, iSCSI, NFS | TCP/IP / UDP / iSCSI | TCP/IP, UDP, iSCSI, NFS | TCP/IP, UDP |
| Weight | N/A | N/A | 0.3 lbs | 0.3 lbs | N/A |
| Width | N/A | N/A | 3.0 inches | 3.4 inches | N/A |
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Questions & Answers
Q
What is the HPE FlexFabric 10Gb 2-port 556FLR-SFP+FIO Adapter (SKU: 732456-B21)?
A
The HPE FlexFabric 10Gb 2-port 556FLR-SFP+FIO Adapter (732456-B21) is a low-profile, dual-port SFP+ network card designed for HPE ProLiant servers that enables 10Gb Ethernet connectivity with FlexibleLOM form factor.
Q
Which servers are compatible with the 732456-B21 FlexFabric adapter?
A
This adapter is validated for HPE ProLiant Gen9 and Gen10 rack and tower servers with FlexibleLOM slots, including DL380, DL360, ML350, and BL460c models.
Q
What port types and speeds does the 556FLR-SFP+FIO adapter support?
A
It features two SFP+ ports supporting 1GbE and 10GbE speeds, auto-negotiation, and full-duplex mode for optimal network performance.
Q
What fiber transceivers are supported by the 732456-B21 adapter?
A
The adapter supports HPE 10Gb SFP+ optical transceivers, including SR, LR, LRM, and BiDi modules, for multi-mode and single-mode fiber applications.
Q
What is FIO on the HPE FlexFabric adapter?
A
FIO (Flexible I/O) allows dynamic reconfiguration of network or storage functions via firmware, enabling on-demand provisioning of Ethernet or FCoE and iSCSI offloads.
Q
How do I install the 556FLR-SFP+FIO adapter in my server?
A
Power down the server, remove the blank FlexibleLOM bracket, insert the adapter into the LOM slot, secure the bracket, and update system firmware to HPE-recommended levels.
Q
Which operating systems are certified for this FlexFabric adapter?
A
Supported OS include Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, CentOS, and Oracle Linux. Check HPE support matrix for exact versions.
Q
Can this adapter offload virtualization traffic?
A
Yes. The 556FLR-SFP+FIO supports SR-IOV for hypervisor bypass, Tx/Rx checksum offload, and Jumbo Frames up to 9,000 bytes, optimizing VM network performance.
Q
What is the maximum cable reach for 10Gb connections?
A
Using SFP+ SR modules on OM3/OM4 multi-mode fiber, the adapter supports up to 300 meters. With LR single-mode optics, it extends to 10 kilometers.
Q
Does the 732456-B21 require an HPE FlexFabric license?
A
No additional license is required. Firmware-based FIO enables FlexFabric functions out of the box; optional HPE networking software may enhance management features.
Q
What are the power and thermal specifications?
A
Typical power consumption is 6.5 W. The adapter operates between 0 °C and 55 °C at a maximum airflow of 32 CFM, matching most server cooling profiles.
Q
How do I update firmware for the FlexFabric adapter?
A
Use HPE Service Pack for ProLiant (SPP) or Smart Update Manager (SUM) to apply the latest NIC firmware and device drivers, ensuring compatibility and performance.
Q
What warranty covers the 732456-B21 adapter?
A
It carries HPE’s standard one-year limited warranty with worldwide support. Extended coverage is available via HPE Care Pack services.
Q
Can I use this adapter for FCoE storage traffic?
A
Yes. FCoE offload is supported via FIO, enabling direct Ethernet-to-Storage traffic and reducing CPU load for converged network/storage deployments.
Q
How does the 556FLR-SFP+FIO differ from a standard Flex-10 adapter?
A
Unlike Flex-10, it offers 10Gb SFP+ ports with FCoE, iSCSI offload, SR-IOV, and higher performance. Flex-10 is limited to 10GbE with FlexNIC partitioning only.
Q
Where can I purchase the HPE FlexFabric 556FLR-SFP+FIO adapter?
A
Authorized HPE resellers, HPE’s online store, or your regional distributor carry SKU 732456-B21. Verify stock and pricing through official HPE channels.
