Buffalo WMR-433

Overview
"WRTT-305ACN_V00", "ESK-H09-8100R RoHS", and a date code
 * of 1403 is silkscreened on the board in the FCC photos.

Like other RTL8881xx SoCs, this device is using the 8 MiB RAM integrated
 * into the SoC. The Flash may be rather low (<= 4 MiB, possibly 2 MiB).

Per the FCC EUT's MAC label, a DC:FB:02 OUI is presumed
 * to be used by at least some devices.

Additional specs, per the FCC manual

 * 11ac connectivity for transfer speeds up to 433Mbps
 * 11n support with speeds up to 150Mbps
 * Dimensions: 45 mm x 45 mm x 15 mm
 * Weight: 19 g