Samsung 4GB DDR3 240-Pin SDRAM ECC Registered Server Memory Model

The Samsung M393B5170FH0-CH9 is a server memory module that provides 4 GB of DDR3 capacity at 1333 MHz. Built in a 240-pin Registered DIMM format, it installs easily into server boards that accept DDR3 RDIMMs.

As an ECC Registered DIMM, it includes an on-board register that buffers command and address signals before they reach the memory controller. This arrangement lowers electrical strain on the controller and helps large memory configurations remain stable. The module also uses eight-bit parity for automatic error detection and correction, shielding data against the bit errors that can cause crashes or corrupted files.

The design supports two operating voltages, 1.5 V and 1.35 V. That flexibility lets administrators balance performance with power efficiency, an advantage when you run multiple nodes in a rack or a home lab that needs to stay quiet and cool. Its 2R × 4 organization works with platforms that accept x4 and x8 chips and supports up to two ranks per module in dual-DIMM per channel layouts.

Choose this module when you are outfitting file servers, virtualization hosts, or database machines that must run around the clock without unplanned downtime. It also fits small business servers that share applications or act as domain controllers, as well as development environments where frequent builds place a steady load on memory. Whether you are refreshing older hardware or expanding capacity in a system that still relies on DDR3, this module delivers the reliability Samsung is known for.

Highlights:

• 4 GB DDR3 Registered DIMM that includes ECC protection
• 1333 MHz data rate delivers stable throughput
• 240-pin form factor fits servers that use DDR3 RDIMM slots
• Operates at either 1.5 V or 1.35 V to support energy-saving modes
• 2R × 4 layout works with controllers that expect x4 or x8 chips