QCAL 16KB Dynamic RAM Expansion Card
This appears to be an early memory expansion board used in the QCAL 700 / AP-13 system. The ribbon cable likely connects to a memory expansion header on the motherboard or another QCAL board.

QCAL 16KB Dynamic RAM Expansion Card
QCAL ROM 6 Custom Interface / Keyboard Encoder Card for QCAL 700 Apple II-Compatible Computer
Short Description:
Rare QCAL-branded expansion card believed to have been used in the QCAL 700 educational/business microcomputer system produced in Edmonton, Alberta during the early 1980s. Features a custom QCAL EPROM ("ROM 6"), MM74C914 keyboard encoder, and multiple TTL logic ICs. Based on the circuitry, this appears to be a custom interface card for keyboard, terminal, or specialized I/O functions rather than a memory or disk controller card. Exact function is unknown and has not been tested.

serial card