8255-8254 Card 
The 8255 I/O card is a programmable peripheral interface for PC/XT, PC/AT, 80386, 80486 or compatible. The interface card contains 8254 (8253) chip and 8255 chips, the 8254 chip provides programmable interval timer/counter function, and the 8255 chips provide programmable input/output functions.

8255-8254 - 192 Card 
The multiple 8255 I/O card is a programmable peripheral interface for PC/XT, PC/AT or compatibles. The interface card provides 192 parallel input output (PIO) programmable line, and six independent 16 bits counter/clock.

8255-8254 Lab Card 
The interface adapter contains 8254 chip and 8255 chips, the 8254 (8253) chip provides programmable interval timer/counter functions and the 8255 chips provide programmable input/output functions. There are two type of cards, one contains many plated through-holes at the adapter for laboratory development and another is typical 8255/8254 adapter.

TTL-I/O Card 
The TTL input/output card is a programmable I/O interface for PC/XT, PC/AT, or compatible computer.
It provides total 64 I/O lines for inputting /outputting TTL digital signal.

Relay/Opto Relop-8 
Digital I/0 card - support 8 SPDT Relay  and  8 opto-isolated input channels

Relay/Opto Relop-16 
Digital I/0 card - support 16 SPDT Relay  and  16 opto-isolated input channels

Relay/Opto external IC8
Up to 4 external modules can be connected to a TTL base card IC8G I/O over DB-25 rounding cord.

A/D-D/A 12Bit LC
without S+H  12 bits A/D-D/A card is a high precision data conversion system for PC/XT, PC/AT, or compatible computer. It contains one 12 bits digital to analog channel (setting jumper 2 for selecting unipolar or bipolar) and sixteen 12 bits analog to digital channels (setting jumper 3 for selecting unipolar or bipolar).

A/D-D/A Super 12Bit  without S+H 
Super 12 bits A/D-D/A card is a high precision data conversion system for PC/XT, PC/AT, or compatible computer. It contains two 12 bits digital to analog channels with unipolar or bipolar format and sixteen / eight 12 bits (single-ended / differential) analog to digital channels conversion with unipolar or bipolar format