Epson Connect-It and other NIC Network Interface Cards for TM Series Printers
Epson offers flexibility and connectivity options with their Connect-It family of interface cards. With these interface cards you can quickly change a serial printer to a parallel printer, or a parallel to USB just by removing two screws and plugging in the new card.
All popular interfaces: serial, parallel, USB, Ethernet and wireless
Unplug the old card and plug in the new - no need to open case