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872725-B21
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HP INFINIBAND EDR 100GB 1PORT 841QSFP28 ADAPTER
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Name:
872725-B21
- Description:
- HP INFINIBAND EDR 100GB 1PORT 841QSFP28 ADAPTER
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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872725-B21 Overview
872725-B21 is a high-performance Ethernet adapter built for data centers, high-speed workstations, and advanced gaming setups. This internal PCIe card delivers a robust 10Gbps data rate via its PCIe interface, ensuring rapid network connectivity and low latency performance while supporting industry-standard protocols such as TCP/IP and UDP for seamless integration with enterprise and consumer environments.
Engineered for reliability and scalability, the 872725-B21 offers features like auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS to optimize network traffic and performance under varying operational loads. Its design, featuring a standard RJ-45 connector and compatibility with Windows, Linux, macOS, VMware, and Hyper-V, makes it the ideal choice for mission-critical applications in dynamic network setups.
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872725-B21 Specifications
- Product Type
- Network Adapter
- Brand
- Hpe
- Adapter Type
- Ethernet
- Data Rate
- 10Gbps
- Connection Interface
- PCIe
- Supported Protocols
- TCP/IP, UDP
- 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, VMware, Hyper-V
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Connector Type
- RJ-45
- Bus Type
- PCIe x4
- Product Name
- 872725-B21 High-Performance Ethernet Network Adapter
872725-B21 Use Case
HPC Seismic Processing Cluster Interconnect
In an oil & gas exploration firm’s HPC environment, the 872725-B21 HP InfiniBand EDR 100 Gbps 1-port QSFP28 adapter links hundreds of compute nodes for seismic data analysis. By providing sub-microsecond latency and 100 Gbps RDMA throughput, it accelerates FFT and migration workloads by 35%, enabling geoscientists to deliver reservoir insights 2× faster with higher accuracy.
AI/ML Deep Learning Training Fabric
A financial services data center deploys the 872725-B21 adapter across its GPU-accelerated cluster to stream 10 TB+ datasets in real time. Leveraging InfiniBand EDR’s zero-copy RDMA, large-scale model training jobs see a 30% reduction in epoch time, boosting iteration speed and improving predictive accuracy for credit-risk and fraud-detection algorithms.
Ultra-Low-Latency Trading Platform Networking
A global equities trading firm integrates the 872725-B21 HP InfiniBand EDR adapter into its matching-engine servers to process market data feeds and order executions. With deterministic sub-microsecond latency and 100 Gbps bandwidth, the platform achieves a 25% improvement in order-execution speed, delivering a measurable edge in high-frequency trading performance.
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Product Comparison Table 
| 872725-B21 |  867707-B21 |  B9F53A |  700752-B21 |  Q6M15A | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Converged | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10Gbps | 1Gbps | 10Gbps | 10Gbps |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe |
| Supported Protocols | TCP/IP, UDP | TCP/IP, UDP, iSCSI, NFS | TCP/IP, UDP | TCP/IP, UDP, iSCSI, NFS | TCP/IP, UDP |
| Form Factor | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Windows, Linux, macOS, VMware, Hyper-V | Windows, Linux, macOS | Windows, Linux, macOS | Windows, Linux, macOS, VMware, Hyper-V | Windows, Linux, macOS |
| Max Speed | 10Gbps | 10Gbps | 1Gbps | 10Gbps | 10Gbps |
| 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 |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Bus Type | PCIe x4 | PCIe x4 | PCIe x1 | PCIe x4 | PCIe x4 |
| Product Name | 872725-B21 High-Performance Ethernet Network Adapter | 867707-B21 High-Performance Converged Network Adapter | B9F53A High-Performance Ethernet Adapter | 700752-B21 10G Ethernet Network Adapter | Q6M15A 10Gbps PCIe Ethernet Adapter |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
R
Ryan Cooper
4
EDR InfiniBand adapter provided massive bandwidth.
S
Sami Ullah
4
Ideal for HPC environments.
V
Victor Chen
4
Very low latency performance.
Z
Zubair Ahmed
5
Rock solid under compute loads.
F
Florian Meier
4
Excellent high-speed interconnect.
Questions & Answers
What is the HP InfiniBand EDR 100Gb 1-port 841QSFP28 Adapter (SKU: 872725-B21)?
The HP InfiniBand EDR 100Gb 1-port 841QSFP28 Adapter (SKU: 872725-B21) is a high-performance Host Channel Adapter (HCA) that delivers 100 Gb/s bidirectional throughput over a single QSFP28 port for HPC, AI, and data-center applications.
Which interface does the HP InfiniBand EDR 100Gb adapter use?
It uses a PCI Express 3.0 x16 host interface to provide maximum bandwidth and low CPU overhead.
What data transfer speeds does the adapter support?
The adapter supports InfiniBand EDR speeds up to 100 Gb/s bidirectionally, enabling ultra-low-latency and high-throughput connectivity.
What connector type and cable standards are supported?
It features a QSFP28 port compatible with InfiniBand EDR passive copper cables up to 5 m and optical transceivers for distances up to 100 m.
Is the adapter backward compatible with earlier InfiniBand generations?
Yes, it is backward compatible with FDR (56 Gb/s) and QDR (40 Gb/s) InfiniBand standards.
Does the adapter support RDMA and RoCE?
Yes, the adapter provides native RDMA over InfiniBand and RoCE v1/v2 support for zero-copy, kernel-bypass data transfers.
Which operating systems and drivers are supported?
Certified drivers and firmware are available for HPE Linux, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Microsoft Windows Server, and VMware ESXi.
What is the typical latency of the InfiniBand EDR adapter?
The adapter delivers typical end-to-end latency under 1.5 microseconds for small-message transfers.
Can I deploy this adapter in virtualized environments?
Yes, it supports SR-IOV and VMware VMDirectPath I/O for direct device assignment in virtualized servers.
What are the power consumption and thermal specifications?
Maximum power consumption is 13 W, and the adapter operates in ambient inlet temperatures up to 45 °C.
How do I install the HP InfiniBand EDR adapter?
Install it in a PCIe x16 slot, secure the bracket, then deploy the latest drivers and firmware via HPE Service Pack for ProLiant (SPP).
What management and monitoring tools are available?
Use HPE OneView and the OpenFabrics Enterprise Distribution (OFED) toolset for comprehensive configuration and performance monitoring.
What warranty coverage does HP provide?
The adapter is backed by a one-year limited hardware warranty, with optional extensions via HPE Care Pack services.
What are the typical use cases for this adapter?
Ideal use cases include HPC clusters, AI/ML model training, high-performance storage networks, and low-latency database acceleration.
Which HPE servers are validated for this adapter?
This adapter is validated on HPE ProLiant DL and ML servers, Apollo systems, Synergy compute modules, and HPE Cray supercomputers.
What form factor and slot requirements does the adapter have?
It is a full-height, half-length PCIe card requiring one x16 slot; a low-profile bracket is included for 1U/2U chassis.
Can I mix this adapter with third-party InfiniBand switches?
Yes, it interoperates with any InfiniBand EDR-compliant switch or switch module from leading vendors.