Asus pce ac88 is a dual band ac3100 4x4 wi fi pci express pcie adapter for desktop pcs its nitroqam technology delivers combined wireless speeds of up to 2100mbps on the 5ghz band and 1000mbps on the 24ghz band faster than 3x3 adapters ensuring smooth streaming and low latency online gaming its the first 4x4 80211ac pcie adapter on the market giving you improved wi fi reception and when paired with a 4x4 router the full performance potential of 4x4 wi fi