The ASUS PEI-10G/82599-2S is designed to take advantage of high-performance 10Gb/s connectivity technology to meet the need for faster rates of data transmission. Through the PEI-10G/82599-2S Ethernet adapter, users are able to enable fiber solution over SFP+ LR optical module and SFP+ SR optical module, or to enable copper solution over direct attach passive twin-ax cable. This flexibility is ideal for different distances and network architecture requirements. Controller Intel® 82599ES Data Transfer Rate 10Gbps Ethernet Connection Ports Dual Port, SFP+ Host Interface PCIe 2.0 x8 Module Type SFP+ SR/LR Optical Module AOC (Active Optical Cable) DAC (Direct Attached Copper) Jumbo Frame Yes (15.5 KBytes) RDMA No Boot Support Pre-eXecution Environment (PXE) iSCSI boot FCoE boot Form Factor Low-profile Card Dimensions 4.72 x 1.77 Inch Features Wake-on-LAN (WOL)