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Name:
D4EC-2666-8G
- Description:
- D4EC-2666-8G - 4 GB - 1 x 4 GB - DDR4 - 2666 MHz - 288-pin DIMM
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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D4EC-2666-8G Overview
D4EC-2666-8G provides DDR4 memory in a UDIMM form factor with a speed of 2666 MHz and a CAS latency of CL19. This 8 GB module is engineered for data integrity with ECC support, operating at a standard voltage of 1.2V in an unbuffered configuration, making it ideal for single-channel deployments in desktop and server applications.
D4EC-2666-8G is designed for mission-critical server and workstation builds where reliability and performance are paramount. With no RGB lighting or heatspreader, it seamlessly supports Intel Xeon Scalable and AMD EPYC platforms, ensuring robust operation in environments that demand consistent, high-quality memory performance.
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Explore more options from Computer Memory & Ram or explore other Synology products.
D4EC-2666-8G Specifications
| Product Type | Computer Memory |
| Memory Type | DDR4 |
| Capacity | 8 GB |
| Compatible Platforms | Desktop / Laptop / Server |
| Compatible Systems | Rack Server / Tower Server |
| Form Factor | UDIMM |
| Kit Configuration | Single Channel |
| Speed | 2666 MHz |
| Operating Temperature | N/A |
| Reliability Rating | Standard |
| 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-2666-8G |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| AMD Platform Support | N/A | N/A | AMD EPYC | N/A | AMD EPYC |
| Capacity | 4 GB | 4 GB | 16 GB | 4 GB | 8 GB |
| CAS Latency (CL) | CL11 | CL11 | CL19 | CL19 | CL19 |
| Compatible Platforms | Desktop | Desktop | Server | Desktop | Desktop / Laptop / Server |
| Compatible Systems | N/A | Workstation | Rack Server | N/A | Rack Server / Tower Server |
| Depth | 0.5 inches | 0.13 inches | N/A | 0.3 inches | N/A |
| ECC Support | No | No | Yes | No | Yes |
| Form Factor | UDIMM | UDIMM | RDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | Yes | No | No | Yes | No |
| Height | 1.2 inches | 1.18 inches | N/A | 1.4 inches | N/A |
| Intel Platform Support | N/A | N/A | Intel Xeon Scalable | N/A | Intel Xeon Scalable |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Memory Type | DDR3 | DDR3 | DDR4 | DDR4 | DDR4 |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Product Name | D3NS1866L-4G | RAM1600DDR3-4GB | D4RD-2666-16G | D4NESO-2666-4G | D4EC-2666-8G |
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Registered/Buffered | Unbuffered | Unbuffered | Registered | Unbuffered | Unbuffered |
| Reliability Rating | Standard | Standard | High Reliability | Standard | Standard |
| RGB Lighting | No | No | No | No | No |
| Speed | 1866 MHz | 1600 MHz | 2666 MHz | 2666 MHz | 2666 MHz |
| Use Case | Gaming / Workstation | General Use | Server | Gaming | Server |
| Voltage | 1.35V | 1.5V | 1.2V | 1.2V | 1.2V |
| Weight | 0.25 lbs | 0.08 lbs | N/A | 0.22 lbs | N/A |
| Width | 5.3 inches | 5.3 inches | N/A | 5.3 inches | N/A |
| XMP Support | Intel XMP 2.0 | No | No | Intel XMP 2.0 | No |
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Questions & Answers
Q
What are the main specifications of the D4EC-2666-8G 4GB DDR4-2666 RAM?
A
The D4EC-2666-8G is a single 4 GB DDR4 module running at 2666 MHz, featuring a 288-pin DIMM form factor, CL19 latency, and 1.2 V operating voltage for desktop systems.
Q
Is the D4EC-2666-8G compatible with my motherboard?
A
This module is compatible with any x86 desktop motherboard that supports DDR4 2666 MHz UDIMM memory and offers 288-pin DIMM slots. Check your motherboard’s QVL for full assurance.
Q
How do I install the D4EC-2666-8G DDR4 module?
A
Power off your PC, open the case, align the notch with the motherboard slot, insert the 288-pin DIMM at a 45° angle, press down until the latches click, then close the case.
Q
What performance gains can I expect from DDR4-2666 over DDR3?
A
Upgrading to DDR4-2666 delivers up to 25% higher bandwidth and improved power efficiency compared to DDR3, reducing load times and enhancing multitasking in modern applications.
Q
Can I mix the D4EC-2666-8G with other RAM modules?
A
You can mix brands if the modules share DDR4 type, speed (2666 MHz), voltage (1.2 V), and similar timings. For best results, use identical modules in dual-channel pairs.
Q
What is the CAS latency of the D4EC-2666-8G?
A
The module operates at CAS latency CL19, offering a balanced latency-to-bandwidth ratio for smooth desktop performance and quick data access.
Q
What voltage does the D4EC-2666-8G require?
A
This DDR4 module runs at a standard 1.2 V, delivering lower power consumption and heat compared to previous-generation memory.
Q
Is the D4EC-2666-8G suitable for gaming PCs?
A
Yes. With 2666 MHz frequency and CL19 latency, this 4 GB module enhances frame rates and load times in most modern games when paired with a compatible CPU and GPU.
Q
Does this RAM support Intel XMP or AMD EXPO profiles?
A
The D4EC-2666-8G supports standard JEDEC timings at 2666 MHz. It does not include proprietary XMP or EXPO overclocking profiles.
Q
What warranty covers the D4EC-2666-8G?
A
This RAM module comes with a limited lifetime warranty covering defects in materials and workmanship under normal use.
Q
How do I troubleshoot if the D4EC-2666-8G isn’t recognized?
A
Reseat the module, test a different slot, update BIOS, verify BIOS detects DDR4-2666 memory, and ensure no bent pins. Contact support if issues persist.
Q
What is the expected lifespan of the D4EC-2666-8G module?
A
Designed for continuous operation, the module offers a mean time between failures (MTBF) exceeding 1 million hours under normal desktop conditions.
Q
Can I use the D4EC-2666-8G in a laptop?
A
No. This is a 288-pin DIMM designed for desktops. Laptops require SO-DIMM modules with 260 or 262 pins.
Q
Will the 288-pin DIMM fit in mini-ITX cases?
A
Yes. As long as your mini-ITX motherboard includes a standard 288-pin DDR4 slot, the module will fit any case that accommodates your motherboard and heatsink.
Q
How can I verify my system supports 2666 MHz RAM?
A
Check your motherboard’s specifications or BIOS memory settings. Look for DDR4 frequency listings or supported JEDEC profiles for 2666 MHz.
Q
Where is the D4EC-2666-8G manufactured?
A
This DDR4 module is manufactured in our ISO-certified facilities, ensuring strict quality control and adherence to global electronics standards.
