| Product Type | Network Adapter |
| Model | HPE Ethernet 10/25Gb 2-Port 640FLR-SFP28 |
| Manufacturer Part Number | 817749-B21 |
| Form Factor | FlexibleLOM (FLR) |
| Ports | 2 |
| Port Type | SFP28 |
| Data Rate | 10/25 GbE |
| Adapter Throughput | 50 Gbps (aggregate bidirectional) |
| Bus Type | PCI Express 3.0 x8 |
| Power Consumption | Up to 8.5W |
| Weight | 0.09 kg (0.2 lbs) |
HPE Eth 10/25Gb 2P 640FLR-SFP28 Network Adapter

Key Benefits
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- - Offers high-performance 10/25Gb Ethernet speeds for data-intensive environments
- - TAA compliance ensures suitability for governmental or regulated sector deployments
- - Dual-port design supports high availability, load balancing, and optimized throughput
Product Overview
The HPE Eth 10/25Gb 2P 640FLR-SFP28 Adapter (Part #817749-B21) delivers dual-port high-speed connectivity supporting both 10Gb and 25Gb Ethernet, ideal for evolving data center demands. Its FLR form factor enables seamless integration into HPE servers. Originating from Israel and TAA-compliant, it meets U.S. government procurement standards. Built for high-throughput and reliable network performance, this adapter supports load balancing and failover functions critical for virtualization and large-scale data applications.
Specifications
Product Overview
Physical & Environmental
| Dimensions (W x D x H) | 6.89 x 2.68 x 0.62 in (17.5 x 6.8 x 1.58 cm) |
| Operating Temperature Range | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature Range | -40°C to 70°C (-40°F to 158°F) |
| Relative Humidity (Operational) | 10% – 90% non-condensing |
| Relative Humidity (Non-Operational) | 5% – 95% non-condensing |
| Cooling | Passive |
Cloud Management & Licensing
| Remote Management Support | HPE iLO Compatible |
| Driver Support | Windows, Linux, VMware, FreeBSD |
| Virtualization Support | VMware NetQueue, Microsoft VMQ |
| Management Options | HPE Systems Insight Manager, UEFI, CLI |
| Firmware Update Method | Online or Offline via HPE Tools |
Interfaces
| Supported Interface Standards | PCIe 3.0 x8 |
| Number of Ports | 2 |
| Connector Type | SFP28 |
| Maximum Data Transfer Rate per Port | 25 Gbps |
| Network Protocol | 10GbE / 25GbE |
| Supported Cables | Direct Attach Copper (DAC), Optical Fiber (with transceivers) |
| Load Balancing Support | Yes |
| SR-IOV Support | Yes |
Compliance & Origin
| Country of Origin | Israel |
| TAA Compliant | Yes |
| RoHS Compliance | Yes |
| Certifications | FCC Class A, CE, VCCI, BSMI, RCM, UL, CSA |
Advanced Security Features
| Secure Boot Support | Yes |
| UEFI Secure Boot | Yes |
| Hardware Root of Trust | Yes |
| PXE Boot Support | Yes |