This is all I could find about my modem :-(, I use Norton system works 2005.
RCA DCM425 DIGITAL CABLE MODEM (RCA DCM425) Details
Binding: Electronics
Brand: RCA
EAN: 0034909940075
Feature: Certified for DOCSIS 1
Label: RCA
Manufacturer: RCA
Model: 425
Modem Description: Cable modem
Publisher: RCA
Studio: RCA

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RCA DCM425 DIGITAL CABLE MODEM (RCA DCM425) Features
Certified for DOCSIS 1
Bridges between a USB & Ethernet port
16 upstream flows allow tiered data services & support more efficient telephony
traffic prioritization schemes
Integrated Broadcom Propane™ technology enables connection of more Internet users without addi