Pce-AC66U and AC87U connection speed problem

[binggesoft]

I use PCE-AC66 to connect to the AC87U router! , 2.4G can reach 450mbps, but 5G is less than 1.3gbps. Can only 877.5mbps! Do you know what the network adapter to achieve 1.3gbps 5G?

 

[L&LD]

I use PCE-AC66 to connect to the AC87U router! , 2.4G can reach 450mbps, but 5G is less than 1.3gbps. Can only 877.5mbps! Do you know what the network adapter to achieve 1.3gbps 5G?

PCE-AC68 Dual-band Wireless-AC1900 PCI-E Adapter

 

[sfx2000]

PCE-AC68 Dual-band Wireless-AC1900 PCI-E Adapter

His PCE-AC66 should get 1300 Mbps on 5GHz, just depends on range to the router, and how he's set for antennas - is OP using the antenna base, or have them directly behind the PC?

 

[L&LD]

His PCE-AC66 should get 1300 Mbps on 5GHz, just depends on range to the router, and how he's set for antennas - is OP using the antenna base, or have them directly behind the PC?

Thanks for the correction.