Arris SURFboard W31

Overview
P/N: WR00ZAE31TB

"WAVE RUNNER 11AX M[AIN BOARD]", "PWB:ARCT05381 RevB", and
 * "30-NOV-2017" are silkscreened on the board in the FCC photos.

The tagline comes from this list of UL Certified products from Arris
 * The 2.4GHz radio doubles as a receive-only 1x1:1 5GHz radio


 * Arris SURFboard on UL Product Spec


 * A variant called W30 is mentioned with the C2PC request documents at the FCC.

The difference is the W31 has a matte black colored bottom while the W30's bottom is silver.