The CT51264BC1339.16F.D is a DDR3 memory module from Crucial, designed to meet the demands of users seeking both high performance and reliability from their computing systems. This module operates at 1066MHz (PC3-8500), providing a robust platform for various computing tasks, from everyday applications to more demanding software environments. Featuring DDR3-1066 512Mx64 UDIMM specifications, it boasts a total capacity of 4GB, suitable for enhancing the multitasking capabilities and overall responsiveness of a wide range of desktop systems. The 240-pin layout is standard for DDR3 memory, ensuring compatibility with the majority of DDR3-supported motherboards currently available. As with all Crucial memory products, quality and reliability are paramount, offering users peace of mind that their system upgrade will deliver the expected performance boost. Suitable for a variety of users, from professionals needing reliable memory for workstations to enthusiasts looking to optimize their desktop setups, this module represents a smart investment in system performance.