For a list of all currently documented Freescale (NXP) SoC's with specifications, see Freescale.
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
For a list of all currently documented STMicro chipsets with specifications, see STMicro.
The Chumby Classic has two external USB 2.0 ports and (per the FCC test report) one internal USB 1.1 port for the wireless module.
FCC filing board (old Ironforge revision)
"with love, -bunnie", the Chumby logo, "Ironforge V1."???, and "MADE IN U.S.A." is silkscreened on the main board in the FCC photos.
"Copyright (C)2006,2007", "Chumby Industries", "Some Rights Reserved, see", "http://www.chumby.com/legal/developer", and "Ironforge Daughtercard v1.2" is silkscreened on the daughtercard.
- "KW5301" and "V1.3" is silkscreened on the wireless module.
- KW5301 googlery yields KASDA as a possible manufacturer, however,
- the FCC test report indicates the module was manufactured by TP-LINK
Newer board (via pictures on madox.net)
"with love, -bunnie", the Chumby logo, "Ironforge v1.7", and
"SETEC ASTRONOMY" is silkscreened on the mainboard.