Do you mean USB keychain memory 'sticks'?
They are available in sizes of 4 GB to 64 GB quite readily, and 128 and 256 GB sizes are available from some vendors
There are many memory sticks available to us these day. Many people like to get the ones that hold a smaller amount of gigabytes, but there are many more options available to us. The largest memory stick available right now holds 256 gigabytes.
It can take a Memory Stick Micro, but not Max Duo like regular PSPs. Currently therefore you will be able to have 32GB total storage space, using the largest Memory Stick Micro available.
To find a USB memory stick in the shape of cartoon characters, Go to Amazon. Type "cartoon character USB memory stick in the search box. They have the largest selection available.
The largest RAM upgrade is 4GB on a single stick of memory.
The largest "stock" memory card on Toshiba branded computers is 2 Terra Bytes aka 2000 gigabytes. It is important to remember that hard drive (memory) space tends to vary but will always meet the minimum requirements set out by the manufacturer (for example a 2tb hard drive with 2158 gigabytes of space).
The largest Memory Stick card you can use in your Sony Cybershot DSC P71 is 256MB http://www.mymemory.co.uk/compatible-memory/Digital_Cameras/Sony/Sony_Cybershot_DSC_P71
It is possible to purchase 4GB memory stick pro duos from Amazon. There are different brands of memory stick available such as Sony, Lexar and Sandisk.
There are not many options available for one to purchase a used 4GB Memory Stick as these are very reasonably priced to purchase new. If one is wanting to purchase a used memory stick there are a few options available on the Amazon website.
Page 21 of the owners manual indicates the 4GB is the larges stick that the camera can use. However I believe it is talking about the CF memory stick not the Sony memory stick. I purchased a 4G Sony memory stick and the camera refused to recognize it. I do have a 2G Sony stick in the camera that works just fine. I also have a 2G CF stick that has no problem with the camera.
yesnobecoz with a memory stick pro duoyou get 2 memory stick pros
get a memory stick get a memory stick
u need a memory stick