Samsung 64GB DDR4 2133 Mbps Server Memory Module

The Samsung M393A8K40B21-CRB is a 64GB DDR4 Registered DIMM server memory module that gives data-center administrators a reliable way to expand capacity without compromising efficiency. Operating at 2133 Mbps and drawing just 1.2 volts, it supplies the bandwidth modern processors need while helping keep power and cooling demands in check.

Built around a 4R x4 layout, the module uses a 288-pin form factor that fits standard DDR4 server sockets. A dedicated register manages clock, command, and control signals before they reach the memory controller, maintaining clean signal integrity even when multiple DIMMs populate the same channel.

Reliability is reinforced by on-board error correction. An 8-bit parity scheme detects and corrects common memory errors on the fly, protecting critical workloads such as virtualization clusters, transactional databases, and in-memory analytics from unexpected crashes or data corruption.

The design is flexible enough to accommodate both x4 and x8 DRAM organizations and supports up to two DIMMs per channel, making it straightforward to scale memory footprints in dual-socket or quad-socket servers. This adaptability helps extend the life of existing hardware investments and simplifies phased upgrades.

Whether you are consolidating virtual machines on a VMware host, accelerating queries on a SQL server, or expanding a high-performance computing node, this Samsung module delivers the capacity, stability, and energy efficiency that keep services responsive and users productive.

Highlights:

• 64GB DDR4 Registered DIMM
• 2133 Mbps data rate
• 4R x4 layout with integrated register
• 1.2 volt operating voltage
• Error correction with 8-bit parity
• Supports x4 and x8 DRAM organizations
• Compatible with up to two DIMMs per channel
• 288-pin form factor