This product is either discontinued or we cannot get that from suppliers.
Asus PCE-AC88, Interface PCI Express, 4 x R SMA Antenna, Frequency 2.4 GHz / 5 GHz, Modulation 1024QAM, O/S Windows® 10 86x64, Windows 7 86x64.
ASUS PCE-AC88 is a dual-band AC3100 4x4 Wi-Fi PCI Express® (PCIe®) adapter for desktop PCs. Its NitroQAM™ (1024-QAM) technology delivers combined wireless speeds of up to 2100Mbps on the 5GHz band and 1000Mbps.