Cisco AIR-LAP1510AG-A-K9

Overview
"Side B" and "AP : 20-100850-000 REV1" is silkscreened on the main component side of the board in the FCC photos. "Side A", "CAS01.00A", "S/N: 81-100850-00[ ]" is silkscreened on the back of the board.
 * Similar if not identical to the Airespace 1250 (AS-1250-ABG-EXT), again Wistron NeWeb is the presumed manufacturer

The RAM chip appears to be a MT48LC4M32B2. The Flash is likely 4MB like the Airespace 1250.

Per the FCC test report, this device is the...
 * AIR-LAP1510AG-A-K9
 * in the US
 * AIR-LAP1510AG-N-K9
 * in Canada, Australia, New Zealand, Mexico, and Taiwan