Removable memory in a DSL modem?

[mbl42]

Hope I posted this in the right place, sorry if I didn't...

I have an old DSL modem that I cracked open today, and found that it had a removable RAM stick. I was wondering if anyone knew why and if it is usable in any older Macs. Thanks.

Photo 1 (http://www.flickr.com/photos/mxlews/155190926/in/photostream/)
Photo 2 (http://www.flickr.com/photos/mxlews/155190925/in/photostream/)

[macEfan]

looks like a 72 pin ram chip. Its probally around 8mb, but it could be less. 72 pin ram works in the 6100/7100/8100 macs, the centris/quadra product lines, and some peformas...