This pack of four 1 GB DDR2 SDRAM modules from Ramaxel is an excellent choice for adding memory to your desktop computer. With a total capacity of 4 GB and a capacity of 1 GB per module, these modules will provide your computer with a significant boost in performance. The modules are rated at PC2-5300 (DDR2-667) bus speed and were made in Korea, Republic of. They are compatible with a wide range of desktop computers and are perfect for users who need to speed up their computer without breaking the bank. Upgrade your computer's memory today with this pack of four DDR2 SDRAM modules from Ramaxel!