HPE 817721-B21 10GbE SFP+ Network Adapter

What It Is

The HPE 817721-B21 is a FlexibleLOM network adapter model 535FLR-T, providing dual-port 10GbE connectivity for HPE Gen10 server platforms. Designed as a FlexibleLOM (FlexibleLOM) form-factor card, it integrates a Broadcom controller and utilizes a PCIe 3.0 x8 host interface for reliable, high-throughput local area network operations in enterprise data centers.

Technical Details

• Part Number: 817721-B21
• Interface: PCI-E x8
• Output Interfaces: 2 ports
• Connector Type: 2 x RJ-45
• Wi-Fi: No
• Bluetooth: No
• Indicators: Act, Link
• Profile: Full-height (FH/FP); not low-profile
• Length: 250 mm

Configuration & Options

• Adapter is pre-configured with two 10GbE RJ-45 ports for copper cabling.
• FlexibleLOM form factor requires a compatible HPE Gen10 server mezzanine slot.
• No Wi-Fi or Bluetooth modules are included or supported.
• Full-height bracket installed; low-profile bracket not available.
• Designed for use with HPE Gen10 ProLiant servers supporting FlexibleLOM adapters.

Operating Conditions

This adapter is intended for installation in HPE Gen10 rack and tower servers that offer a FlexibleLOM slot. It is suitable for enterprise LAN environments requiring high-bandwidth 10GbE connectivity over twisted-pair copper cabling. The card is optimized for virtualized workloads, database applications, and general data center traffic where dual-port redundancy or increased throughput is needed.