United States$5,000,000+
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Jonathan Reed
5
SFP28 adapter delivered excellent throughput.
817718-B21
HPE Eth 10/25Gb 2p 631SFP28 Adptr
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817718-B21
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- HPE Eth 10/25Gb 2p 631SFP28 Adptr
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817718-B21 Overview
817718-B21 is a high-performance Ethernet network adapter engineered for reliable data transfer at speeds up to 1Gbps. Designed as an internal PCIe card, this adapter offers seamless connectivity and supports essential protocols such as TCP/IP and UDP for consistent network communication across data centers, small office networks, and high-speed workstations.
Constructed for demanding environments, 817718-B21 comes with stringent operating and storage temperature ranges along with features like auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS to enhance network efficiency. Its broad compatibility with Windows, Linux, and macOS platforms makes it an ideal choice for enterprises seeking robust and dependable connectivity solutions.
817718-B21 price is $261.00, a 75.3% saving from the Hpe list price of $1,057.00. 817718-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 817718-B21 for additional pricing. Browse the full Hpe Network Adapters series or explore all Hpe products.
817718-B21 Specifications
- Product Type
- Network Adapter
- Adapter Type
- Ethernet
- Data Rate
- 1Gbps
- 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
- Max Speed
- 1Gbps
- 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 x1
- Product Name
- 817718-B21 Network Adapter
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
817718-B21 Use Case
Enterprise Virtualization & Live Migration Acceleration
In an enterprise VMware vSphere cluster running on HPE ProLiant DL380 servers, deploying the HPE 817718-B21 HPE Eth 10/25Gb 2p 631SFP28 Adapter provides dual 25 GbE links per server. This configuration reduces vMotion migration times by up to 40%, alleviates north–south network congestion and ensures SLA-bound application availability in multi-tenant data centers.
High-Throughput iSCSI Storage Fabric for HPE 3PAR
When scaling HPE 3PAR StoreServ arrays for mission-critical databases, integrating the 817718-B21 adapter on each compute node delivers 50 Gbps of aggregate bandwidth to the storage fabric. This cuts nightly backup windows by up to 50%, boosts random I/O performance for mixed workloads and maximizes storage consolidation without adding switch complexity.
Distributed AI & HPC Cluster Networking
In a high-performance computing cluster for AI training and scientific simulation, equipping AMD-based compute nodes with the HPE Eth 10/25Gb 2p 631SFP28 Adapter creates a low-latency, high-bandwidth 25 GbE fabric. The result is up to 20% faster MPI-based job completion, improved GPU-to-GPU data exchange and streamlined scaling for deep-learning model training across hundreds of nodes.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 817718-B21 |  TC352A |  QW971A |  732456-B21 |  684217-B21 | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 1Gbps | 10Gbps | 1Gbps | 10Gbps | 10Gbps |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe x4 |
| 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 | Windows, Linux, macOS | Windows / Linux / macOS | Windows, Linux, macOS | Windows, Linux, macOS, VMware, Hyper-V |
| Max Speed | 1Gbps | 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 |
| Power Consumption | N/A | 10W | 5W | N/A | 15W |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Maximum Range | N/A | 100 meters | 100 meters | N/A | 100 meters |
| Bus Type | PCIe x1 | PCIe x4 | PCIe x1 | PCIe x4 | PCIe x4 |
| Product Name | 817718-B21 Network Adapter | TC352A Network Adapter | QW971A Gigabit Ethernet Adapter | 732456-B21 High Performance Ethernet Adapter | 684217-B21 High Performance Ethernet Adapter |
| Height | N/A | 0.5 inches | 0.2 inches | N/A | 1.2 inches |
| Width | N/A | 4.4 inches | 4.5 inches | N/A | 3.5 inches |
| Depth | N/A | 1.5 inches | 1.5 inches | N/A | 0.5 inches |
| Weight | N/A | 0.3 lbs | 0.5 lbs | N/A | 1.1 lbs |
Reviews & Ratings
A
Ammar Yasin
5
Future-ready 25Gb networking.
P
Peter Novak
4
Low latency under load.
T
Tariq Mahmood
5
OEM quality and easy install.
S
Sebastian Wolf
5
Great high-speed option.
Questions & Answers
What is the HPE Eth 10/25Gb 2p 631SFP28 Adapter (SKU: 817718-B21)?
The HPE Eth 10/25Gb 2-port 631 SFP28 Adapter (817718-B21) is a dual-port PCIe network interface card that delivers 10GbE and 25GbE connectivity for HPE ProLiant servers.
Which server platforms support the HPE 817718-B21 adapter?
This adapter is validated for HPE ProLiant Gen10 and Gen11 servers including DL360, DL380, ML350, and synergetic eigentracks models with available PCIe Gen3 slots.
What performance can I expect from the 817718-B21 adapter?
You can achieve line-rate throughput at both 10GbE and 25GbE speeds per port, with low latency and up to 50 Gb/s aggregate bandwidth.
Which SFP28 transceivers are compatible with SKU 817718-B21?
It supports HPE-qualified SFP28 optics such as the 10GBASE-SR SFP+ and 25GBASE-SR SFP28 modules for multimode fiber up to 100 m.
Does the HPE 631SFP28 adapter require special drivers?
Yes. Install the HPE Network Adapter Driver version 2.x or later available from the HPE Support Center for full functionality.
What operating systems are supported?
Supported OSes include Microsoft Windows Server 2019/2022, RHEL 8/9, SUSE Linux Enterprise Server 15, VMware ESXi 7.x/8.x and Citrix XenServer 8.x.
How do I install the 817718-B21 on my server?
Power down the server, insert the adapter into a free PCIe Gen3 x8 slot, secure it with a retention bracket, then power on and install the HPE driver.
What is the power consumption of the adapter?
Typical power draw is 4.5 W, with a maximum thermal design power (TDP) of 8.5 W per card under full load.
Is remote management supported on this adapter?
Yes. It integrates with HPE Integrated Lights-Out (iLO) for remote monitoring, firmware updates, and diagnostic reporting.
What warranty covers the HPE 817718-B21 adapter?
It carries a standard three-year limited warranty backed by HPE’s global support network and worldwide parts replacement.
Can I mix 10GbE and 25GbE links on this card?
Yes. Each port auto-negotiates between 10GbE and 25GbE speeds based on the installed SFP/SFP28 module and link partner capability.
What jumbo frame sizes does this adapter support?
It supports jumbo frames up to 9,000 bytes to optimize throughput and reduce CPU overhead in large-packet environments.
How does the 631SFP28 adapter enhance virtualization?
With SR-IOV and VMware NetQueue support, it offloads network processing to the hardware, delivering higher VM density and lower latency.
What advanced features are included?
Features include RoCE v2 for RDMA, Data Center Bridging (DCB), multicast filtering, VLAN tagging, and 802.1p QoS prioritization.
Can I use this adapter in non-HPE servers?
While physically compatible with standard PCIe Gen3 slots, full driver support and firmware management require HPE platform validation.
Where can I download firmware updates for SKU 817718-B21?
Firmware and driver updates are available on the HPE Support Center under the product page for part number 817718-B21.