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10/25Gb adapter delivered high throughput.
817750-B21
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HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adptr
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817750-B21
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- HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adptr
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- List Price:
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817750-B21 Overview
817750-B21 is a high-performance Ethernet adapter designed as an internal PCIe card, delivering reliable 1Gbps data rates for efficient network connectivity. It supports key protocols such as TCP/IP and UDP, making it well-suited for small office networks, high-speed workstations, and data centers where robust and stable connections are a necessity.
The 817750-B21 adapter offers advanced features including auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS support to optimize network performance. With compatibility across Windows, Linux, macOS, VMware, and Hyper-V environments, this Ethernet adapter ensures seamless integration into various network infrastructures while maintaining optimal power consumption, operating, and storage temperature specifications.
817750-B21 price is $249.27, a 44% saving from the Hpe list price of $445.12. 817750-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 817750-B21 for additional pricing. Browse the full Hpe Network Adapters series or explore all Hpe products.
817750-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, VMware, Hyper-V
- Max Speed
- 1Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- 5W
- Connector Type
- RJ-45
- Maximum Range
- 100 meters
- Bus Type
- PCIe x1
- Product Name
- 817750-B21 Ethernet Adapter
- Height
- 1.2 inches
- Width
- 3.0 inches
- Depth
- 0.9 inches
- Weight
- 0.2 lbs
817750-B21 Use Case
Enterprise Server Virtualization with 817750-B21 HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adapter
In a high-density VMware or Hyper-V cluster, IT architects deploy the 817750-B21 HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adptr to deliver dual 10/25Gb ports directly into blade and rack servers. This configuration: • Eliminates network bottlenecks for dozens of VMs per host • Scales VM-to-VM east-west traffic by up to 2.5× • Reduces per-VM networking costs through port consolidation Outcome: Dramatically improved VM density, predictable low latency, and up to 30% TCO savings.
High-Performance Computing & Big Data Analytics Acceleration
Research labs and data warehouses integrate the 817750-B21 HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adptr into compute nodes feeding HPE 3PAR or Nimble storage arrays via 25GbE fabric. This setup: • Boosts parallel data ingestion rates by 40% • Lowers map-reduce job completion times by 25% • Enables seamless RDMA over Converged Ethernet (RoCE) for HPC messaging Outcome: Fast-track scientific simulations and real-time analytics with sustained multi-Gb throughput and sub-10 µs latencies.
Multi-Tenant Cloud & Service Provider Networking
Cloud providers and telco edge environments leverage the 817750-B21 HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adptr for secure, flexible tenant isolation across shared spine-leaf topologies. Key benefits include: • Dedicated 25Gb bandwidth slices per tenant • Hardware-offloaded VXLAN & NVGRE overlay support • 99.999% SLA-grade resilience with hot-swap FLR form-factor Outcome: Simplified provisioning, granular QoS control, and guaranteed performance SLAs for diverse tenants on a single, converged fabric.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 817750-B21 |  879383-B21 |  718904-B21 |  817746-B21 |  TC352A | |
|---|---|---|---|---|---|
| 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 |
| Supported Protocols | TCP/IP, UDP | TCP/IP / UDP / iSCSI | TCP/IP, UDP | TCP/IP, UDP | TCP/IP, UDP, iSCSI, NFS |
| 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 | Windows, Linux, macOS |
| 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 | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 5W | 6W | 3.5W | 5W | 10W |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Maximum Range | 100 meters | 100 meters | 100 meters | 100 meters | 100 meters |
| Bus Type | PCIe x1 | PCIe x4 | PCIe x1 | PCIe x4 | PCIe x4 |
| Product Name | 817750-B21 Ethernet Adapter | 879383-B21 High-Performance Ethernet Adapter | 718904-B21 Gigabit Ethernet Adapter | 817746-B21 High Performance Ethernet Adapter | TC352A Network Adapter |
| Height | 1.2 inches | 0.7 inches | 0.4 inches | 0.7 inches | 0.5 inches |
| Width | 3.0 inches | 3.0 inches | 4.3 inches | 3.5 inches | 4.4 inches |
| Depth | 0.9 inches | 0.5 inches | 1.5 inches | 1.5 inches | 1.5 inches |
| Weight | 0.2 lbs | 0.3 lbs | 0.2 lbs | 0.5 lbs | 0.3 lbs |
Reviews & Ratings
O
Owais Siddiq
4
OEM adapter installed cleanly.
J
Jonas Berg
5
Low latency performance.
C
Chris Young
5
Great network upgrade.
L
Luis Moreno
5
Dependable enterprise NIC.
Questions & Answers
What is the HPE Eth 10/25Gb2p 640FLR-SFP28 FIO Adapter (SKU 817750-B21) and what does it do?
The HPE 817750-B21 is a dual-port 10/25 Gb FlexLOM network adapter for HPE ProLiant servers. It delivers high-throughput, low-latency Ethernet connectivity optimized for virtualization and storage-intensive workloads.
Which HPE servers support the 817750-B21 FlexLOM adapter?
The 817750-B21 is supported on HPE ProLiant Gen10 and Gen11 servers with a FlexLOM slot, including DL380, DL360, ML350 and compatible rack and tower models. Refer to HPE QuickSpecs for full compatibility details.
What are the primary performance features of the 10/25 Gb 2-port adapter?
It provides up to 25 Gbps per port, advanced congestion management, SR-IOV, low CPU overhead and hardware offloads. These features accelerate virtualized and cloud workloads with enhanced Quality of Service (QoS).
Which SFP28 transceivers are compatible with the 817750-B21?
Compatible optics include HPE SFP28 25 GbE SR, LR and 10 GbE SFP+ SR, LR transceivers. Always use HPE-certified modules to ensure interoperability, optimal performance and warranty compliance.