... on certain Dell Precision workstations.

(even though this only gets mentioned in the last sentence of the article.)

[link|http://www.canoe.ca/MoneyNewsTechnology/jul18_dellannounces-dow.html|
Dell announces plans to enter market for networking products ]
AUSTIN, Texas -- Dell Computer Corp. (Quote) announced plans to enter the market for low-cost network switches, as it moves to expand outside its traditional personal-computer turf.
....
Separately, Dell said it has installed Red Hat Linux 7.1 on all Dell PowerEdge servers and on certain Dell Precision workstations.

[link|http://www.dell.com/us/en/bsd/topics/linux_linuxhome.htm"|Dell's Linux Site]

Buy a Dell System with Linux Factory Installed
For well over a year Dell has positioned Linux as a Tier One operating system - available on our entire line of award-winning PowerEdge Servers, PowerApp Internet Appliance Servers, select Precision Workstations, Dimension Desktops, and Latitude and Inspiron Notebooks. Dell's One Source Alliance with Red Hat, our community involvement and our unique ability to deliver Linux-based systems, solutions and services reflect our commitment to the Open Source movement.

[link|http://www.dell.com/linux|Linux redirect link?]