Two sticks of ram The product is a pair of 1GB DDR2 memory modules from the brand ProMOS. These 1RX8 PC2 5300U-555-12-D0 modules have a total capacity of 1GB, with each module providing 1GB of memory. They are designed for use with DDR2 SDRAM technology and have a bus speed of PC2-5300 (DDR2-667). Perfect for enhancing memory capacity in computers, these RAM sticks are reliable and efficient for improving performance and multitasking capabilities.