24-ch TTL Digital I/O Universal PCI Card
24CH TTL DIGITAL I/O LOW-PROFILE CARD
PCI Express 24DI/O
Universal PCI 24 Bit OPTO-22 Compatible Digital I/O Board
PC/104plus 48 Bit OPTO-22 Compatible Digital I/O Board
PCI 24 Bit OPTO-22 Compatible Digital I/O Board
