Quantenna QBox610

"QHS610_R2_QSKU", "Quantenna Communications", and Plotech PCB text appears to be silkscreened on the board in the FCC photos.

QHS610 Product Page Product Brief

All four antennas are noted as being ETHERTRONICS 1001017's in the FCC test report.

Possibly used PSUs
The power supply shown in the FCC external photos is a Sunny Computer Technology Co., Ltd. SYS1428-1812-W2.