The Broadcom BCM957504-P425G is a quad-port 25 Gb/s PCI Express 4.0 x 16 network interface card that supports SFP28/SFP+ optical modules & copper direct-attach cables. The card uses the Broadcom BCM57504 100 Gb E MAC controller with an integrated quad-channel 25 Gb E SFI transceiver. Quad-port media interface SFP28/SFP+ optical transceiver or copper direct-attach cable Broad SAFE technology x 16 PCI Express 4.0 compliant Function-Level Reset (FLR) support Tru Flow flow processing engine Tunnel-aware stateless offloads RDMA over Converged Ethernet Advanced congestion avoidance Multiqueue, Net Queue, & VMQ IPv 4 & IPv 6 offloads Large send offload (LSO) Large receive offload (LRO) TCP segmentation offload (TSO)