This product is either discontinued or we cannot get that from suppliers.
Asus PCE-AC68 Dual-band Wireless Ac1900 Pci-e Adapter, Standards: IEEE 802.11ac, IEEE 802.11a/b/g/n, Wireless: AC1900 ultimate AC performance: 600+1300Mbps, Security: 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, Interface: PCI Express, Frequency Band: 2.4 GHz / 5 GHz, 3 x R SMA Antenna.
The ASUS PCE-AC68 is a new 802.11ac Wi-Fi PCI Express adapter which upgrades your desktop from tangle-some Ethernet cables to carefree industry-leading 802.11ac at up to 1.3Gbps.