1 <?xml version="1.0"?> 2 <memory-unit> 3 <memory-unit-enum value="(Not selected)" price="0"/> 4 <memory-unit-enum value="PC3200 DDR RAM 256MB" price="500"/> 5 <memory-unit-enum value="PC3200 DDR RAM 512MB" price="800"/> 6 </memory-unit>