2 layers73.9 × 73.2 mmSkyFaxME-IRL/SkyFaxFax and data modems built around Skyworks's ISOModem chips.98 parts13
4 layers29.7 × 29 mmLineSimME-IRL/SkyFaxFax and data modems built around Skyworks's ISOModem chips.7 parts13
2 layers18 × 14.2 mmSoundCardME-IRL/SkyFaxFax and data modems built around Skyworks's ISOModem chips.26 parts13