Siemens SS2105

"MADE IN TAIWAN" and "52-000028-00" is silkscreened on the board of one production model SS2105.
 * A date code of 0134 (Aug. 2001) is etched onto the bottom of this board.

Probable included PSU(s)
The power supply included with this switch (or at least some) seems to be an unbranded AD41-1200500DU.