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D4EC-2666-16G
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16GB RAM UNBUFF ECC ECC DIMM DDR4-2666 260PIN 1.2V
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Name:
D4EC-2666-16G
- Description:
- 16GB RAM UNBUFF ECC ECC DIMM DDR4-2666 260PIN 1.2V
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Synology
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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D4EC-2666-16G Overview
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.
D4EC-2666-16G price is is available on request. Get immediate quote.
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D4EC-2666-16G Specifications
- Product Type
- Computer Memory
- Brand
- Synology
- Memory Type
- DDR4
- Capacity
- 16 GB
- Compatible Platforms
- Desktop / Server
- Compatible Systems
- Rack Server
- Form Factor
- UDIMM
- Kit Configuration
- Single Channel
- Speed
- 2666 MHz
- Reliability Rating
- High Reliability
- CAS Latency (CL)
- CL19
- Voltage
- 1.2V
- ECC Support
- Yes
- Registered/Buffered
- Unbuffered
- XMP Support
- No
- RGB Lighting
- No
- Heatsink / Heatspreader
- No
- Intel Platform Support
- Intel Xeon Scalable
- AMD Platform Support
- AMD EPYC
- Use Case
- Server
- Product Name
- D4EC-2666-16G DDR4 ECC UDIMM
- Height
- 1.18 inches
- Width
- 5.28 inches
- Depth
- 0.13 inches
- Weight
- 0.15 lbs
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Product Comparison Table 
| 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 |
| 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 |
| 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 |
| 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 |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Archer Quinn
4
Consistent 16GB ECC memory performance. This module provides the high-level data integrity required for our enterprise server systems.
V
Veda Gray
4
Reliable throughput and perfect compatibility. It effectively handles our server workloads with professional-grade efficiency and complete stability.
H
Holden Craft
4
Exceptional build quality and dependable 2666MHz speed. A critical component for maintaining high uptime in our data center.
T
Tessa Lane
4
Robust ECC RAM with excellent mechanical stability. It ensures consistent performance for our mission-critical applications and storage.
W
Wilder Smith
5
Top-tier reliability for professional servers. This memory module significantly improves our system's overall multitasking and data processing.
Questions & Answers
What does SKU D4EC-2666-16G represent?
SKU D4EC-2666-16G identifies a 16 GB DDR4-2666 unbuffered ECC UDIMM with 260 pins operating at 1.2 V.
What is ECC in 16 GB DDR4-2666 RAM?
ECC (Error-Correcting Code) automatically detects and corrects single-bit memory errors to improve data integrity and system stability.
Is this module unbuffered or registered?
This module is unbuffered (UDIMM), meaning it connects directly to the memory controller for lower latency in workstations and servers.
Which motherboards support 16 GB DDR4-2666 ECC UDIMM?
Motherboards with DDR4 ECC UDIMM slots and chipset support—typically Intel Xeon or AMD EPYC platforms—are compatible.
How do I install the DDR4-2666 ECC module?
Power off the system, align the notch, press the module into the DIMM slot until the latches click, then power on.
What performance benefits does DDR4-2666 provide?
DDR4-2666 offers 21 333 MT/s throughput, delivering improved data bandwidth and responsiveness for memory-intensive applications.
Can I mix ECC and non-ECC RAM modules?
Mixing ECC and non-ECC modules is not recommended; the system will default to non-ECC mode and lose error-correction features.
What voltage does this DDR4 memory require?
This DDR4-2666 ECC UDIMM operates at a standard voltage of 1.2 V for optimized power efficiency and thermal performance.
Will the module run at lower speeds if needed?
Yes, it can auto-negotiate to lower JEDEC speeds (e.g., 2133 MT/s) if the motherboard or CPU does not support 2666 MT/s.
What latency timings should I expect?
Typical latency for DDR4-2666 ECC UDIMM is CL19-19-19 at 1.2 V, balancing speed and stability in server environments.
Does this ECC DIMM require any BIOS settings?
Most platforms auto-detect ECC modules; if necessary, enable ECC support in the BIOS under memory or advanced chipset settings.
How do I verify the module’s ECC functionality?
Use system diagnostics tools or BIOS memory tests that report ECC error detection and correction status during POST.
What operating systems support ECC memory?
Modern server and workstation OSs—such as Windows Server, Linux distributions, and VMware ESXi—fully support ECC memory.
What warranty covers this 16 GB ECC DIMM?
The module is backed by a limited lifetime warranty against defects in materials and workmanship.
How many DIMMs can I install per channel?
Most dual- or quad-channel configurations support one or two UDIMMs per channel; consult your motherboard manual for optimal population.
Is heat spreader required for this unbuffered ECC module?
No heat spreader is required; this unbuffered ECC UDIMM is designed for standard server airflow and thermal conditions.