Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM Memory Module

The Samsung M321R2GA3BB6-CQK is a DDR5 ECC Registered DIMM with a 16 GB capacity that expands memory in enterprise servers and workstations. Operating at 4800 MHz under the PC5 38400 standard, it supplies the bandwidth needed for virtualization hosts, database engines, and other workload-intensive environments.

Built on the JEDEC DDR5 specification, this module uses a 288-pin layout and runs at just 1.1 volts, helping to reduce overall power draw and heat inside dense racks. An onboard register coordinates clock, command, and control signals, while integrated 8-bit parity detects and corrects single-bit errors before they affect data integrity. Its single-rank 1Rx8 design pairs well with two-DIMM-per-channel configurations on 4th Gen Intel Xeon and AMD EPYC boards, allowing full population of memory channels without sacrificing stability.

Installation is straightforward: seat the module in an open DDR5 RDIMM slot, power up, and the system firmware automatically recognises the added capacity. Because this is a registered ECC module, it is intended for servers and professional workstations that demand continuous uptime and cannot be used in consumer desktop or laptop motherboards.

Whether you are scaling a virtual machine cluster, accelerating in-memory analytics, or giving a file server more headroom, the Samsung M321R2GA3BB6-CQK delivers the speed, capacity, and reliability that keep critical systems running smoothly.

• 16 GB DDR5 ECC Registered DIMM designed for servers and professional workstations
• 4800 MHz operating speed that meets the PC5 38400 standard
• Single-rank 1Rx8 configuration suited to two-DIMM-per-channel layouts
• 288-pin form factor operating at 1.1 V for improved energy efficiency
• Compatible with 4th Gen Intel Xeon and AMD EPYC platforms that require DDR5 RDIMM
• Not intended for consumer desktop or laptop systems