DETAILS: This desktop memory is compatible with most PCs.Double Data Rate (DDR) SDRAM memory is a product built upon the foundation of older PC100/PC133 memory technology. DDR SDRAM memory can do two operations per clock cycle, unlike SDRAM memory which only supports one operation per the computer's clock cycle. By having DDR technology, you are doubling the memory bandwidth over the corresponding single-data-rate SDRAM.Give your computer a boost by adding more memory! Product Description: Memory Upgrades memory - 1 GB - DIMM 184-pin - DDR Storage Capacity: 1 GB Upgrade Type: Generic Technology: DDR SDRAM Form Factor: DIMM 184-pin Memory Speed: 333 MHz ( PC2700 ) Manufacturer Warranty: Limited lifetime warranty UPC: 0821455001899