HPE FlexFabric Dual Port 20Gb 650FLB FIO Network Adapter | 701536-001

The HPE FlexFabric Dual-Port 20 Gb 650FLB FIO Network Adapter (part number 701536‑001) is a high-performance mezzanine adapter for HPE BladeSystem servers. With two 20 GbE internal ports, it delivers up to 40 Gbps of aggregate bandwidth directly within the blade chassis via the FlexibleLOM interface, reducing cabling complexity and maximizing in‑system throughput. Engineered for Gen8 through Gen10 blade platforms, the adapter supports converged fabric use cases—merging Ethernet, FCoE, and iSCSI—allowing workload consolidation while preserving data center efficiency.

Advanced offload capabilities include tunnel offload for VXLAN/NVGRE overlay networking, and RDMA over Converged Ethernet (RoCE), which boost VM migration speed, improve latency, and reduce CPU overhead. The 650FLB dynamically scales to 10 GbE when needed, ensuring compatibility with various interconnect modules. With its low-power consumption (~7.6 W), secure firmware, and full support for modern overlay and storage traffic, the 701536‑001 is an ideal choice for accelerating dense, virtualized, and hybrid-cloud blade environments.