
Printer Interface Cards
RS485, RS232 interface boards and logical cards for POS printers
24 products
Replacement and add-on interface cards specifically for POS receipt printers — Epson TM-T88 series UB-S01/UB-U05/UB-E04 interface modules, Star IFBD series, Bixolon and Citizen serial/USB/Ethernet add-on cards. When the network port on your printer fails or you need to convert a serial printer to Ethernet, swapping the interface card is faster and cheaper than replacing the whole printer. Each card listing notes which printer model and revision it fits.

TOSHIBA IBM 4820 5LG SUREPOINT TOUCH DISPLAY USB CABLE

TOSHIBA IBM 4610 2CR 2NR Thermal Printer LOGICAL CARD

New
IBM 44D0157 4610-2CR 2NR RS485 Interface Card

IBM 4610 TG4 TI4 POS Printer RS485 RS232 LOGICAL BOARD

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IBM 4610 TG4 TI4 thermal printer RS485 RS232 interface

IBM 4610 TG4,TI4,TG5 RS-485 RS-232 interface board

IBM 4610 TG4,TI4,TX4 POS Printer RS-485 RS-232 Mainboard LOGICAL BOARD

IBM TOSHIBA 1NR Printer Interface Card Serial port RS232

IBM TOSHIBA 4610-2NR 4610-2CR RS232 Interface Card PN 44d0203 44d0158

TOSHIBA IBM 1NR 2NR Printer RS232 serial interface board

TOSHIBA IBM 1NR 2NR POS Printer RS485 Interface Card

New
BIXOLON SRP350 SRP350PLUSII SRP350III SRP350PLUS Printer Mainboard

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BIXOLON SRP350II & SRP350III Thermal Printer Roller

New
IBM 44D0157 4610-2CR 2NR RS485 Interface Card

IBM 4610 TG4 TI4 POS Printer RS485 RS232 LOGICAL BOARD

New
IBM 4610 TG4 TI4 thermal printer RS485 RS232 interface

IBM 4610 TG4,TI4,TG5 RS-485232 interface board

IBM 4610 TG4,TI4,TX4 POS Printer RS-485232 Mainboard LOGICAL BOARD
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IBM POS DISPLAY RS485(42M5633) Cable

IBM Surepos 500 POS Terminal RS232 Male 9P To RJ45 Cat5 2FT Serial Cable PN57P4083

IBM TOSHIBA 1NR Printer Interface Card Serial port RS232

IBM TOSHIBA 4610-2NR 4610-2CR RS232 Interface Card PN 44d0203 44d0158

TOSHIBA IBM 1NR 2NR RS232 serial interface board

TOSHIBA IBM 1NR 2NR RS485 Interface Card
Frequently asked questions
Can I swap a UB-S01 (serial) for a UB-E04 (Ethernet) on the same printer?
Yes — Epson designed the TM-T88 series with interchangeable interface modules. Power down the printer, unscrew the rear panel, swap the card, screw the new card in. The printer auto-detects the new interface on next power-up. Driver-side, install the corresponding Epson driver for the new connectivity.
Do interface cards need to match the printer revision (V, VI, VII)?
Within the same series, generally yes — Epson revised the connector pinout between TM-T88V and TM-T88VI, for instance. Always cross-reference our listing's compatibility note before ordering, and if in doubt, send us the printer's full model number including the revision suffix.
What if my printer has a permanent (non-modular) interface?
Older or budget thermal printers have soldered-on interfaces that aren't field-replaceable. In those cases, a USB-to-serial or Ethernet-to-USB converter externally is the workaround, or a printer replacement is the more reliable path.
Are wireless (WiFi/Bluetooth) interface cards reliable in retail environments?
WiFi cards work well for back-office and small-store deployments. In multi-lane stores with dense 2.4 GHz traffic, hard-wired Ethernet is more reliable. Bluetooth is fine for short-range, single-pairing use (e.g. mobile cashier setups) but doesn't scale to fleet deployments.
