Serial and Parallel I/O Cards

Argosy - PC Card CD-ROM, ethernet, modem, serial, and multimedia cards
B&B Electronics Manufacturing Company - PC Card serial port and parallel port cards
Elan Digital Systems Elan offers a complete range of communications PC and Compact Flash format cards.
EXP Computer, Inc. - PC Card multimedia, modems, accessory, serial, and input devices cards
IOtech, Inc. - PC Card interface cards
Omega Engineering Inc. - PC Card serial adapter, analog input, and digital I/O cards
PC Card International - PC Card combination, network, serial I/O, multimedia, and PCMCIA adapter cards
Pretec - PC Card modem, ethernet, adapter, memory, video, hard drive, serial, and extender cards
Quatech Inc. - PCMCIA drives and data acquisition analog/digital I/O cards
Sealevel Systems, Inc. - PC Card serial I/O cards
Socket Communications - PC Card ethernet, Input/Output cards Synchrotech - PC Card modem, ethernet, sound, memory, multimedia, serial, and storage cards

SCSI Cards

Action Tec - PC Card SCSI card
Adaptec - PC Card SCSI II Host Adapter
Argosy - PCMCIA SCSI adapter
PC Card International - PC Card SCSI cards
RATOC Systems, Inc. - PC Card SCSI cards
Shining Technology, Inc - PC Card SCSI card
Synchrotech - PC Card SCSI cards
Verisys, Inc. - PC Card SCSI bus analyzer