Samsung 8GB 2RX4 DDR3 PC3-12800R 1600 Mbps Server Memory Module

The Samsung M393B1K70QB0-YK0 is a server memory module that supplies 8GB of DDR3 registered capacity and runs at 1600 Mbps. It follows the common 240-pin RDIMM layout, so it installs seamlessly into boards designed for registered DIMMs without needing adapters or firmware tweaks.

The module relies on a 2Rx4 organization with an on-board register that buffers command, clock, and control signals. By easing the electrical load on the memory controller, this design helps maintain signal integrity when every slot is filled and keeps multi-channel configurations stable under heavy traffic.

Built-in 8-bit error-correcting code continually checks each data word and fixes single-bit faults as they occur. That constant protection matters for virtualization hosts, database clusters, and other enterprise services that run around the clock and cannot tolerate silent data corruption or unexpected reboots.

Energy-conscious data centers can take advantage of the module’s dual-voltage support. Running at the standard 1.5 V delivers full performance, while boards that offer a 1.35 V setting can shave power use and heat output without sacrificing speed.

Whether you are expanding an older rack server or balancing capacity across nodes in a cluster, this module offers a straightforward upgrade path for any platform that accepts DDR3 memory in a two-DIMM-per-channel configuration.

Highlights:

• Provides 8GB of DDR3 memory in a registered DIMM form
• 2Rx4 organization steadies signal timing in fully populated channels
• 1600 Mbps data rate aligns with mainstream server platforms
• ECC with 8-bit parity detects and corrects single-bit errors
• Operates at either 1.5 V or 1.35 V for flexible power management
• Standard 240-pin layout enables quick, tool-free installation