The Linksys MAX-STREAM AC600 Wi-Fi Micro USB Adapter upgrades Windows-based PCs to Next-Gen AC Wi-Fi and makes it MU-MIMO (Multi-user, multiple-input, multiple-output) ready, allowing the Wi-Fi router to communicate with multiple devices simultaneously at a faster and more efficient way. In our household alone, we have seven devices connected at any one time, which often results in slow loading and buffering.