Memory Cards

understanding how they work.

Compact Flash type I - Digital film
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A very small removable mass storage device that relies on flash memory technology, a storage technology that does not require a battery to retain data indefinitely. CompactFlash cards can support 3.3V and 5V operation and can switch between the two, in contrast to other small-form factor flash memory cards that can only operate at one voltage. There are two types of CompactFlash cards to accommodate different capacities: Type I cards are 3.3mm thick while Type II cards are 5.5mm thick.


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Compact Flash Type II -------------------- Compact Flash Type I
 • CF type I - 36.4 x 42.8 x 3.3mm
• CF type II - 36.4 x 42.8 x 5.0mm

What is the difference between both types?

Type I is thinner and uses solid state memory.. Type II or Microdrive is like a very small disk drive. Type II uses more power and drains the camera power faster.