Keyspan USB 4-Port Mini Hub (UHM-4SL)

"USB HUB", "UH154B", "[  ]". "REV", "(C) 2001", "KEYSPAN", "RICHMOND, CA", and "USA" is silkscreened on the component side of the board.
 * "0PB4-0123-A" is silkscreened on the bottom of the board.
 * "UH154B-AKS-31" and "A2LJ064008701AA" is printed on a label affixed to the bottom.
 * Probable Aten model UH-154B / UH-154B-AKS

The model for this device appears to be UHM-4SL.

Review on the gadgeteer
 * Dated 01/02/2002
 * Price noted as $49

Review on ReferenceGuide.com
 * Price again noted as $49

The release of this device is presumed to have been in 2001.

The manufacturer of this device is presumed to be Aten as a similarly named product (UH-154), with essentially the same appearance, was manufactured by the company.