HPE 817720-B21

535FLR-T Dual-Port 10 Gb Network Adapter

The HPE  817720-B21 535FLR-T is a high-performance 10 Gb Ethernet adapter designed for HPE ProLiant servers.  Employing a FlexibleLOM (FLR-T) form factor, this adapter delivers two 10 Gb RJ-45 (Base-T) ports over copper cabling—providing up to 40 Gb/s full-duplex bandwidth. Powered by the Broadcom BCM57416 chipset, it supports advanced features such as Single Root I/O Virtualization (SR-IOV), Function-Level Reset (FLR), Secure Boot, Network Partitioning (NPAR), and tunnel offloads for VXLAN/NVGRE. Optimized for virtualization-rich and I/O-intensive environments, it integrates seamlessly with HPE sea of sensors thermal management and offers both performance and scalability.

Features

Built to leverage modern networking needs, the 535FLR-T adapter uses dual RJ-45 ports for flexible deployment over standard CAT 6A cabling up to 100 m. The use of Broadcom BCM57416 ensures line-rate delivery across both ports, delivering up to 40 Gb/s of bi-directional Ethernet bandwidth. Its FlexibleLOM form factor enables easy, tool-free upgradeability on supported HPE ProLiant Gen10 servers without consuming PCIe slots. The adapter taps into PCIe 3.0 x8 bus for high throughput and stability.  Advanced features such as SR-IOV enhance virtualization performance by enabling multiple virtual NICs with low latency, while NPAR allows bandwidth segmentation. Security features like Secure Boot and FLR enhance maintainability and reliability. Thermal efficiency is managed through HPE Sea of Sensors technology—optimizing cooling and minimizing noise and power usage in dense server deployments. The adapter’s support for VXLAN/NVGRE offloading accelerates encapsulation performance in overlay networks, crucial for large-scale virtualized environments. 

Advanced Options

The HPE 817720-B21 is engineered for low-latency and high-bandwidth data transfer across virtualized, cloud, and enterprise workloads. Its BCM57416 foundation ensures efficient delivery at 40 Gb/s, while technologies like SR-IOV and NPAR reduce CPU burden and enhance overall system throughput. FLR support enables smoother failovers and module resets without affecting system availability. Tunnel Offload for VXLAN and NVGRE is crucial in overlay-based data center fabrics—this adapter accelerates these operations to maintain high network performance in virtual environments.