ASUS PCE-AC88 is a dual-band AC3100 4x 4 Wi-Fi PCI Express (PCIe) adapter for desktop PCs. Its Nitro QAM (1024-QAM) technology delivers combined wireless speeds of up to 2100 Mbps on the 5 G Hz band & 1000 Mbps on the 2.4 G Hz band — 60% faster than 3x 3 adapters, ensuring smooth streaming & low-latency online gaming 1. It’s the first 4x 4 802.11ac PCIe adapter on the market, giving you enhanced Wi-Fi reception & — when paired with a 4x 4 router — the full performance potential of 4x 4 Wi-Fi!