IOGear GUH274

MicroHub - Ultra-Slim 4-Port USB 2.0 Hub

The Cypress hub IC package is marked with "CY7C65640-", "LFXC 0504", "D 04", "CYP 603473", and "KOR".

The ATEN logo and "0PB4-0505-B(R1.1)' is silkscreened on the bottom of the PCB.
 * It would appear the device is an Aten UH275.

A sticker with "ZUH275-A-31" and "ZO5-53001102042AB" on it is also affixed to the bottom of the board.
 * The hub is using two S.Y. capacitors.

The power adapter included with the device is a Deer Computer
 * AD1605CF (100-240VAC 47~63Hz, ~0.8A -> 4.0-5.5VDC 2.6-2.3A).