Oce OP33 Reference Manual page 345

Card to be used
Card readout method
Magnetic card reading direction
Store/replay
Power source
Dimensions (H x W x D)
Weight
8
8-8 Specifications
Magnetic type card, Optical type card
Magnetic/Optical readout
Inserting Direction
Replay
From main unit
1-1/4" x 3-1/2" x 4 (32mm x 88mm x 100mm)
Approx. 10.4 oz (295g)