Types

• 8GB memory cards usually come in a variety such as SD cards, MiniSD cards, Compact Flash, xD-Picture cards and PCMCIA.
  
  

Cost

• 8GB memory cards can cost from twenty dollars to $85, depending on the type of card you want.
  
  

Significance

• Having a memory card that is at least 8GB can be very handy when you want to store a lot of data.