UMAX (MaxGate) UGate-Plus v2

(via archive.org)

A SerComm board P/N ("4900C500B") is silkscreened on one particular unit's board. Additionally, a date code of 9947 is etched onto the back of the board.
 * From the date code on this board, it's presumed to be the v2 unit.

A label affixed to the bottom of the board reads "C500F4 1.1".

thiggins review of the device on Practically Networked (dated 1999-04-01)
 * and the spec page on PN

This device has a 10Mbit WAN port and 100Mbit LAN port.

Additional external links

 * Review on CCPlace
 * Enter below to win a UMAX Ugate! @ CableModemInfo.com
 * The screenshot notes the MAC as starting with 00:C0:02 (SerComm).