The HMT42GL7BMR4A-H9D7 is a DDR3 registered ECC memory module manufactured by Hynix Semiconductor. It's specifically designed for servers and high-performance workstations where data integrity and system stability are critical. The registered design includes a register between the DRAM modules and the system's memory controller, which alleviates stress on the controller and supports larger memory capacities and improved stability, especially in multi-module configurations.

Applications:

• Servers
• High-end workstations
• Virtualization platforms
• Data centers

Features:

• DDR3 Technology
• Registered ECC DIMM (RDIMM)
• Module Size: 16GB (1 x 16GB)
• Module Rank: 2Rx4
• Speed: PC3-12800 (DDR3-1600)
• CAS Latency: CL11
• Voltage: 1.35V (Low Voltage)
• 240-Pin DIMM

Benefits:

• Increased System Reliability: The registered design improves signal integrity and reduces the load on the memory controller, resulting in a more robust and stable system, particularly when using multiple modules.
• Enhanced Data Integrity: ECC (Error-Correcting Code) functionality detects and corrects single-bit errors, preventing data corruption and ensuring data accuracy. This is crucial for mission-critical applications.
• Improved Performance: DDR3 technology provides fast data transfer rates, which translate to quicker application loading times and overall system responsiveness.
• High Capacity: The 16GB module size allows for large amounts of data to be stored in memory, improving application performance and supporting virtualization.
• Lower Power Consumption: The 1.35V low voltage operation reduces power consumption and heat generation, leading to energy savings and improved system cooling efficiency.

Additional Details:

The HMT42GL7BMR4A-H9D7 conforms to JEDEC standards for DDR3 RDIMMs. The 'H9D7' likely indicates a specific build revision or manufacturing code and might represent minor component or process variations. It is important to consult the system or motherboard documentation to confirm compatibility and ensure optimal performance.

ECC memory is essential for applications where data integrity is paramount, such as financial modeling, scientific research, and database management.