1. High-Performance IntelXL710-QDA22 Controller Powered by the original Intel XL710 (Fortville) series chipset, this adapter offers industry-leading stability and driver compatibility. It is optimized for server virtualization, cloud service providers, and high-performance computing (HPC) environments. 2. 40Gbps Ultra-High Bandwidth Connectivity Unlock elite network performance with dual 40Gbps QSFP+ ports. Delivering a total theoretical bandwidth of up to 80Gbps, this card is designed to handle massive data traffic, high-frequency trading, and ultra-high-definition video streaming without bottlenecks. 3. Dual QSFP+ Ports for Maximum Density Equipped with two professional QSFP+ (Quad Small Form-factor Pluggable Plus) interfaces. This standard supports 40G QSFP+ optical modules, DAC (Direct Attach Copper) cables, and AOC (Active Optical Cables), providing versatile and scalable connectivity for dense network architectures. 4. Efficient PCIe 3.0 x8 Bus Interface Engineered with a PCI Express v3.0 x8 interface, the card provides 8GT/s per lane, ensuring sufficient throughput to support dual 40Gbps line-rate performance. It is physically compatible with PCIe x8 and x16 slots. 5. Advanced Cooling for 24/7 Enterprise Reliability Features a specialized oversized black aluminum alloy heatsink that ensures the XL710 controller remains at optimal operating temperatures. This robust passive cooling design guarantees stable, full-load operation 24/7 in high-density server racks. 6. Broad Compatibility & OS Support Designed for seamless integration into professional infrastructures. Fully compatible with Windows Server, Linux (RHEL/CentOS/Ubuntu), VMware ESXi, and Proxmox. Both Full-Height and Half-Height (Low Profile) brackets are included to fit any chassis size.