Lenovo SN30L21989 2x Ports 40GbE Ethernet Mezz Network Adapter
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$398.00
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General Information
Interfaces/Ports
Technical Information
Miscellaneous
Storage Capacity
The Lenovo SN30L21989 is a mezzanine-form-factor dual-port 40 GbE Ethernet adapter based on Mellanox’s ConnectX‑3 technology, specifically designed for Lenovo ThinkSystem servers (like the SN550 and SN850). It provides two 40 Gb/s ports—each capable of operating at 10 GbE or 40 GbE—over QSFP+ interfaces via the OCP/ML2 mezzanine slot architecture. This adapter supports jumbo frames, VLAN tagging, LACP link aggregation, flow control, iSCSI and RoCE offloading, and delivers ultra-low latency suitable for storage fabrics, virtualization, or high-performance clusters. Often found refurbished with a limited warranty, it remains a reliable solution for legacy data center systems.
