From Liliputing:
Buffalo has been selling 32GB and 64GB solid state disks that you can use to replace the low capacity disks that come with netbooks like the Asus Eee PC 901 for a while. Now the company is going a step further by offering a USB enclosure for its line of Eee PC 901 SSDs.
The idea is that you can plug in the USB module and copy an image of your internal SSD to the new module before swapping it out. When you’re done, you can keep your old 16GB SSD as extra storage by sticking it into the enclosure.
If you’re interested, you can check it out here.