Broadcom BCM57840S Quad-Port 10GbE/40GbE SFP+ Ethernet NIC
Brand: Broadcom | Category: Network Equipment
SKU: BCM-BCM57840S | Part #: BCM57840S | MPN: BCM57840S
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About the Broadcom BCM57840S Quad-Port 10GbE/40GbE SFP+ Ethernet NIC
Broadcom BCM57840S Quad-Port 10GbE/40GbE NIC
The BCM57840S provides four SFP+ ports (4× 10GbE or breakout to 1× 40GbE) over a PCIe 3.0 x8 host interface, with RoCEv2 RDMA, FCoE offload, SR-IOV, and full-offload TCP engine. Widely used in high-density virtualisation environments where each adapter multiplexes dozens of virtual functions (VFs) to reduce total NIC count per server while maintaining line-rate performance per VM.
Key Specifications
| Parameter | Value |
|---|---|
| Ports | 4× 10GbE SFP+ or 1× 40GbE |
| Host Interface | PCIe 3.0 x8 |
| RDMA | RoCEv2 (hardware) |
| SR-IOV | Up to 128 VFs total |
| Offload | FCoE, iSCSI, TOE, TSO, LRO |
| Power | <25W full load |
Technical Specifications
| Brand | Broadcom |
| Category | Network Equipment |
| SKU | BCM-BCM57840S |
| Part Number | BCM57840S |
| Condition | New |
| Manufacturer Part Number | BCM57840S |
| Port Count | 4 × SFP+ |
| Ethernet Speed | 10GbE or 40GbE (Breakout) |
| Interface Type | PCIe 3.0 x8 |
| Form Factor | Network Interface Card (NIC) |
| Data Transfer Rate | Up to 40 Gbps aggregate |
| RDMA Support | RoCEv2 |
| Offload Features | FCoE, TCP Full-Offload |
| Virtualization Support | SR-IOV with Multiple Virtual Functions |
| Target Applications | High-Density Virtualization Environments |