Upgrade or expand a desktop computer/server's USB connectivity by adding four external USB Type-A ports - USB card features 4x independent controllers which allow for full 5Gbps performance per port simultaneously - USB PCIe expansion card with internal SATA and LP4 power; 5V 2A (10W) per port - USB expansion card works with Windows/macOS/Linux; Compatible with all hardware platforms including Intel/AMD/Apple Silicon - PCI Express 2.0 x4; Standard profile bracket pre-installed.