Samsung 8GB DDR4 2666MHz UDIMM ECC 1Rx8

The Samsung 8GB DDR4 2666MHz UDIMM ECC 1Rx8 (M391A1K43DB2-CWE) is a server-grade unbuffered ECC memory module engineered on Samsung's advanced 10nm-class DRAM fabrication process. Operating at a rated speed of DDR4-2666 (PC4-21300) with CL19 latency timings, this single-rank, x8 organization module delivers reliable high-bandwidth memory access for platforms requiring error detection and correction without the added latency overhead of fully buffered or registered designs. The ECC function continuously scrubs and corrects single-bit memory errors in real time, a critical requirement for data integrity in production server and workstation environments.

As a UDIMM form factor, the M391A1K43DB2-CWE is specifically suited to entry-level and mid-range server platforms, professional workstations, and edge computing nodes that support unbuffered ECC memory — a common configuration in Intel Xeon E-series and select AMD EPYC embedded platform designs. The module operates at 1.2V nominal, aligning with DDR4 energy-efficiency standards and contributing to reduced thermal output in dense rack deployments. Samsung's on-die ECC cell architecture further enhances intrinsic reliability at the silicon level before system-level ECC correction is applied.

The M391A1K43DB2-CWE carries Samsung's commercial-grade quality binning and is manufactured to JEDEC DDR4 standards, ensuring broad platform compatibility and long-term supply consistency for lifecycle-managed infrastructure programs.

Ideal for

• Entry-level rack servers running virtualization stacks such as VMware ESXi or Microsoft Hyper-V, where ECC protection prevents silent data corruption across multiple guest workloads
• Professional CAD and EDA workstations requiring unbuffered ECC memory to maintain computational integrity during long-running simulation and rendering jobs
• Edge AI inference nodes and industrial IoT gateways where compact unbuffered ECC modules enable reliable continuous operation in space- and power-constrained deployments
• Network-attached storage (NAS) and software-defined storage appliances on platforms such as TrueNAS or Proxmox, where ECC is essential to protect ZFS write caches and metadata integrity
• Telecommunications and carrier infrastructure servers requiring memory with error correction to meet five-nines availability targets in unattended remote locations
• Enterprise desktop-replacement workstations and thin provisioning servers in regulated industries — finance, healthcare, government — where data fidelity is a compliance requirement

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.