Quick overview from the supplier:
Wi-Fi 6 Dual Band Access Point Grandstream "GWN7660" 1770Mbps, OFDMA, Gbit Ports, PoE, Controller
//
1.77Gbps aggregate wireless throughput and 2x Gigabit Ethernet ports
Dual-band 2x2:2 MUMIMO with DL/UL OFDMA technology
Up to 175-meter coverage range
Supports 256 concurrent Wi-Fi client devices
Advanced QoS to ensure real-time performance of low-latency applications
Anti-hacking secure boot and critical data/control lockdown via digital signatures, unique security certificate/random default password per device
Self-power adaptation upon auto detection of PoE or PoE+
Embedded controller can manage up to 50 local GWN series APs; GWN.Cloud offers unlimited AP management; GWN Manager offers premise based software controller
https://www.grandstream.com/products/networking-solutions/indoor-wifi-access-points/product/gwn7660
