Samsung M391B5273CH0-YH9 4GB DDR3-1333/PC3-10600 UDIMM 240-Pin CL9 Dual Rank x8 Unbuffered Memory Module. Empower your data center with Samsung M391B5273CH0-YH9 server memory, designed for performance and efficiency. With 4GB, it supports large-scale virtualization, analytics, and cloud workloads. It is certified to meet the DDR3-1333/PC3-10600 and provides reliable interoperability with leading server brands. The UDIMM format includes error correction features to ensure smooth uptime. Running at 1333MHz, it makes your systems respond quicker during heavy data operations.