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872726-B21
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- HPE IB EDR/EN 100Gb 2p 841QSFP28 Adptr
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Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
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Refund or restock, your call.
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30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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872726-B21 Overview
872726-B21 is a high-performance SAN storage system designed for demanding enterprise environments. It features 12 drive bays that support mixed drive types including SATA HDD, SAS HDD, SATA SSD, and NVMe SSD, delivering a total storage capacity of up to 512 TB while supporting RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 for robust data protection and performance.
872726-B21 is powered by an Intel Xeon processor with 8 cores and comes with 16 GB of pre-installed DDR4 memory that can be expanded up to 32 GB. The system offers interfaces including USB 3.1, 10GbE network ports supplemented by 2 LAN ports, and provides expansion support. It is equipped with active cooling and redundant power supplies rated at 350W, making it ideal for SMB backup, enterprise data centers, virtualization, and media servers.
What is the price of 872726-B21?
Pricing for 872726-B21 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for 872726-B21.
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872726-B21 Specifications
| Product Type | Storage System |
| Storage Type | SAN |
| Form Factor | Rackmount |
| Bay Count | 12-bay |
| Supported Drive Types | Mixed |
| Hot-Swap Support | Yes |
| Max Supported Capacity | 512 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| CPU Type | Intel Xeon |
| CPU Cores | 8 |
| Installed RAM | 16 GB |
| Max RAM Capacity | 32 GB |
| RAM Type | DDR4 |
| Network Ports | 10GbE |
| LAN Ports | 2 |
| USB Ports | USB 3.1 |
| Expansion Support | Yes |
| Cooling | Active |
| Power Supply | Redundant |
| Power Supply Wattage | 350W |
| Operating System | Custom OS |
| Snapshot Support | Yes |
| Cloud Sync Support | Yes |
| Virtualization Ready | Yes |
| ISCSI Support | Yes |
| Surveillance Support | No |
| Use Case | Enterprise Data Center |
| Product Name | 872726-B21 Enterprise Storage Server |
| Height | 3.5 inches |
| Width | 17.5 inches |
| Depth | 28.0 inches |
| Weight | 32 lbs |
872726-B21 Use Case
HPC Cluster Acceleration in Scientific Research
A national research lab deploys the 872726-B21 HPE IB EDR/EN 100Gb 2-port 841QSFP28 adapter to interconnect 500+ compute nodes running fluid dynamics simulations. By leveraging RDMA over Converged Ethernet (RoCE) and end-to-end EDR bandwidth, latency drops below 500 ns and aggregate throughput exceeds 80 GB/s. Outcome: simulation runtimes shrink by 40%, enabling faster model iterations and more accurate scientific insights.
Ultra-Low-Latency Financial Trading Networks
A high-frequency trading firm integrates the 872726-B21 adapter into its order-matching engines and market data feed handlers. With sub-microsecond latency and lossless congestion control, the firm executes trades in under 200 ns round-trip time. Outcome: improved quote response, reduced slippage by 30 %, and a measurable boost in trade profitability while maintaining regulatory audit compliance.
Distributed AI/ML Training in Enterprise Data Centers
A global enterprise deploys the 872726-B21 HPE IB EDR/EN 100Gb adapter across GPU-accelerated servers for parameter-server and collective-communication workloads. High-density QSFP28 ports and adaptive congestion management deliver sustained 100 Gbps per link. Outcome: end-to-end model convergence times drop by 50% for large-scale transformer training, accelerating time-to-production for AI-driven analytics and decision support.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Bay Count | 12-bay | 36-bay | 12-bay | 12-bay | 12-bay |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Active | Redundant Fan | Redundant Fan |
| CPU Cores | 8 | 8 | 8 | 8 | 8 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| Depth | 28 inches | 28 inches | 28.0 inches | 28.7 inches | 28 inches |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Height | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Installed RAM | 32 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| LAN Ports | 4 | 4 | 2 | 2 | 4 |
| Max RAM Capacity | 128 GB | 64 GB | 32 GB | 128 GB | 64 GB |
| Max Supported Capacity | 512 TB | 512 TB | 512 TB | 256 TB | 192 TB |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| Operating System | Custom OS | Custom OS | Custom OS | Custom OS | Custom OS |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 750W | 350W | 350W | 750W | 500W |
| Product Name | BB877A Enterprise SAN Storage System | BB881A Storage Appliance | 872726-B21 Enterprise Storage Server | BB926A Enterprise Storage System | 867331-B21 Enterprise Storage Array |
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| RAM Type | ECC DDR4 | DDR4 | DDR4 | ECC DDR4 | ECC DDR4 |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Storage Type | SAN | SAN | SAN | SAN | SAN |
| Supported Drive Types | Mixed | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed | Mixed | Mixed |
| Surveillance Support | No | No | No | No | No |
| USB Ports | USB 3.2 | USB 3.0 | USB 3.1 | USB 3.2 | USB 3.0 |
| Use Case | Enterprise Data Center | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| Weight | 45 lbs | 45 lbs | 32 lbs | 32 lbs | 45 lbs |
| Width | 17 inches | 17 inches | 17.5 inches | 17.3 inches | 17.5 inches |
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Questions & Answers
Q
What is the HPE IB EDR/EN 100Gb 2p 841QSFP28 Adapter (SKU: 872726-B21)?
A
The HPE IB EDR/EN 100Gb 2-port 841QSFP28 Adapter is a dual-port network card that delivers 100 Gbps InfiniBand EDR and Ethernet connectivity via QSFP28 interfaces for HPE ProLiant and Apollo servers.
Q
Which network protocols are supported by the HPE 872726-B21 adapter?
A
This adapter supports InfiniBand Enhanced Data Rate (EDR) at 100 Gbps and Ethernet standards up to 100 GbE, enabling unified fabric deployments for HPC and data-center applications.
Q
What throughput and latency can I expect from this 100Gb QSFP28 adapter?
A
The HPE 872726-B21 adapter delivers line-rate 100 Gbps throughput per port with sub-microsecond latency for InfiniBand EDR, ensuring high-performance, low-latency data transfers.
Q
Which servers and platforms are compatible with the HPE IB EDR/EN 100Gb adapter?
A
This adapter is validated for HPE ProLiant Gen9/Gen10 DL and Apollo server families, as well as select HPE Synergy compute modules with available PCIe 3.0 x16 slots.
Q
What type of connectors and cables are required for the 841QSFP28 Adapter?
A
The adapter features two QSFP28 ports compatible with passive and active QSFP28 copper or optical cables certified for InfiniBand EDR and 100 GbE Ethernet.
Q
Does the HPE 872726-B21 adapter support RDMA over Converged Ethernet (RoCE)?
A
Yes, this adapter supports RDMA over Converged Ethernet (RoCE v2) for ultra-low latency and CPU-efficient data access in cloud and virtualization environments.
Q
How do I install the HPE IB EDR/EN 100Gb Adapter in my server?
A
Power down the server, insert the adapter into an available PCIe 3.0 x16 slot, secure it with the screw bracket, and update firmware via HPE Service Pack for ProLiant (SPP).
Q
Which operating systems are supported by the HPE 872726-B21 network adapter?
A
This adapter is supported on Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, and major InfiniBand software stacks.
Q
Is the HPE IB EDR/EN 100Gb adapter hot-pluggable?
A
No, this adapter requires a server shutdown for safe insertion or removal, as it occupies a PCIe slot and lacks hot-swap capability.
Q
What is the typical power consumption of the HPE 100Gb QSFP28 adapter?
A
The adapter consumes approximately 12 W per port under standard loads and up to 20 W peak, subject to link speed and cable type.
Q
What management and diagnostics tools are available for the 872726-B21 adapter?
A
HPE provides management via HPE OneView, iLO, and command-line utilities like ibstat and ethtool for link monitoring, firmware updates, and performance tuning.
Q
Does the HPE IB EDR/EN adapter support link aggregation?
A
Yes, the adapter supports IEEE 802.3ad Link Aggregation Control Protocol (LACP) for Ethernet and InfiniBand port trunking to increase bandwidth and redundancy.
Q
What environmental conditions does the HPE 872726-B21 adapter require?
A
Operating temperature range is 0 °C to 55 °C with relative humidity from 10 % to 85 % non-condensing, compliant with RoHS and WEEE regulations.
Q
What warranty coverage does HPE offer for the 100Gb QSFP28 adapter?
A
HPE backs the adapter with a standard three-year limited warranty, including hardware replacement and 24×7 support for critical failures.
Q
Can I use this adapter in a converged fabric environment?
A
Yes, the adapter’s unified InfiniBand and Ethernet functionality simplifies converged fabric deployments for HPC, virtualization, and enterprise data centers.
Q
What are the primary use cases for the HPE IB EDR/EN 100Gb 2-port adapter?
A
Key use cases include high-performance computing clusters, virtualization farms, AI/ML workloads, storage fabrics, and low-latency financial trading platforms.
