Most Samuel Jackson products manufactured between 2005 and 2014 use EA7 C-More touch screens while products manufactured after 2014 use EA9 C-More touch screens.  Both EA7 and EA9 screens have a USB port on the back, but the EA9 screens also have "Samuel Jackson" in red on the front.

EA7 C-More Software
(2005-2014)

EA7 C-More 15 Series Gas Heater v1.8
HTR 1 - HTR 2 - HTR 3 - HTR 4 - HTR 5 - HTR 6 - HTR 7 - HTR 8

EA9 C-More Software
(2014-present)

EA9 C-More 15 Series Gas Heater v1.8
HTR 1 - HTR 2 - HTR 3 - HTR 4 - HTR 5 - HTR 6 - HTR 7 - HTR 8