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D4EC-2666-16G
16GB RAM UNBUFF ECC ECC DIMM DDR4-2666 260PIN 1.2V
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D4EC-2666-16G is a high-performance DDR4 memory module featuring Error-Correcting Code (ECC) support in a standard UDIMM form factor. Operating at a speed of 2666 MHz with a CAS latency of CL19 and a voltage of 1.2V, this 16 GB module is engineered for high reliability in demanding environments.
Designed for server and workstation builds, D4EC-2666-16G is configured as a single-channel kit without a heatsink or RGB lighting, ensuring compatibility with desktop and rack server platforms. Its unbuffered architecture and robust ECC capability make it ideally suited for data centers and professional applications that require trusted memory performance.
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 D4EC-2666-16G |  D4NESO-2666-4G |  D3NS1866L-4G |  D4NE-2666-4G |  RAMRG2133DDR4-16GB | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR3 | DDR4 | DDR4 |
| Capacity | 16 GB | 4 GB | 4 GB | 4 GB | 16 GB |
| Compatible Platforms | Desktop / Server | Desktop | Desktop | Desktop / Laptop / Server | Desktop |
| Compatible Systems | Rack Server | N/A | N/A | Workstation | N/A |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 2666 MHz | 2666 MHz | 1866 MHz | 2666 MHz | 2133 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | High Reliability | Standard | Standard | Standard | Standard |
| CAS Latency (CL) | CL19 | CL19 | CL11 | CL19 | CL15 |
| Voltage | 1.2V | 1.2V | 1.35V | 1.2V | 1.2V |
| ECC Support | Yes | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | No | Intel XMP 2.0 | Intel XMP 2.0 | No | Intel XMP 2.0 |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | No | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel Xeon Scalable | N/A | N/A | Intel 10th Gen | N/A |
| AMD Platform Support | AMD EPYC | N/A | N/A | AMD Ryzen 3000 | N/A |
| Use Case | Server | Gaming | Gaming / Workstation | General Use | Gaming |
| Product Name | D4EC-2666-16G DDR4 ECC UDIMM | D4NESO-2666-4G | D3NS1866L-4G | D4NE-2666-4G | RAMRG2133DDR4-16GB |
| Height | 1.18 inches | 1.4 inches | 1.2 inches | N/A | 1.2 inches |
| Width | 5.28 inches | 5.3 inches | 5.3 inches | N/A | 5.3 inches |
| Depth | 0.13 inches | 0.3 inches | 0.5 inches | N/A | 0.5 inches |
| Weight | 0.15 lbs | 0.22 lbs | 0.25 lbs | N/A | 0.1 lbs |
Consistent 16GB ECC memory performance. This module provides the high-level data integrity required for our enterprise server systems.
Reliable throughput and perfect compatibility. It effectively handles our server workloads with professional-grade efficiency and complete stability.
Exceptional build quality and dependable 2666MHz speed. A critical component for maintaining high uptime in our data center.
Robust ECC RAM with excellent mechanical stability. It ensures consistent performance for our mission-critical applications and storage.
Top-tier reliability for professional servers. This memory module significantly improves our system's overall multitasking and data processing.
SKU D4EC-2666-16G identifies a 16 GB DDR4-2666 unbuffered ECC UDIMM with 260 pins operating at 1.2 V.
ECC (Error-Correcting Code) automatically detects and corrects single-bit memory errors to improve data integrity and system stability.
This module is unbuffered (UDIMM), meaning it connects directly to the memory controller for lower latency in workstations and servers.
Motherboards with DDR4 ECC UDIMM slots and chipset support—typically Intel Xeon or AMD EPYC platforms—are compatible.