Vantec UGT-MH304

GO2.0 USB 2.0 MiniHub
 * 4x USB 2.0 Ports Hi-Speed Hub
 * Product page

"Y-S0036 REV4.1" and "2005-08-04 JACKSON" is silkscreened on the board.
 * The Cypress hub IC package is marked with "CY7C65640A-", "LFXC 0519",
 * "E 04 KOR", "CYP 620479", and a square (at the bottom).
 * The hub is using all STONE capacitors.

The hub is presumed to have been manufactured in China.

The power cord included with the device may be an unbranded
 * PA-213-50 (100-240VAC ~ 50/60Hz, 0.3A -> 5VDC 2.2A).