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Reliable 16GB RDIMM for enterprise servers. The ECC functionality ensures high data integrity for our mission-critical apps.
D4RD-2666-16G
16GB RDIMM ECC RAM DDR4-2666
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Name:
D4RD-2666-16G
- Description:
- 16GB RDIMM ECC RAM DDR4-2666
- Rating:
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- Brand:
- Synology
- Condition:
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D4RD-2666-16G Overview
D4RD-2666-16G is a DDR4 Registered DIMM engineered for high-performance server environments, delivering a speed of 2666 MHz with a CAS latency of CL19 and operating at 1.2V. This 16GB single module features ECC support and registered buffering, ensuring robust error correction and enhanced reliability for mission-critical applications.
D4RD-2666-16G is primarily compatible with server platforms, including rack server installations, and supports leading Intel Xeon Scalable and AMD EPYC systems. With no integrated heatspreader or RGB lighting, it is optimized for data center and enterprise server builds where stability and dependable performance are paramount.
D4RD-2666-16G price is is available on request. Get immediate quote.
Request bulk order quote for D4RD-2666-16G for additional pricing. Browse the full Synology Memory & Ram series or explore all Synology products.
D4RD-2666-16G Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 16 GB
- Compatible Platforms
- Server
- Compatible Systems
- Rack Server
- Form Factor
- RDIMM
- Kit Configuration
- Single Channel
- Speed
- 2666 MHz
- Operating Temperature
- N/A
- Reliability Rating
- High Reliability
- CAS Latency (CL)
- CL19
- Voltage
- 1.2V
- ECC Support
- Yes
- Registered/Buffered
- Registered
- 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
- D4RD-2666-16G
- 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
 D4RD-2666-16G |  RAMEC1600DDR3-4GBX2 |  D4RD-2666-32G |  D3NS1866L-4G |  RAM1600DDR3L-8GBX2 | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR3 | DDR4 | DDR3 | DDR3 |
| Capacity | 16 GB | 8 GB | 32 GB | 4 GB | 8 GB |
| Compatible Platforms | Server | Desktop | Desktop / Laptop / Server | Desktop | Desktop |
| Compatible Systems | Rack Server | N/A | Rack Server | N/A | N/A |
| Form Factor | RDIMM | UDIMM | RDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Dual Channel | Single Channel | Single Channel | Dual Channel |
| Speed | 2666 MHz | 1600 MHz | 2666 MHz | 1866 MHz | 1600 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | High Reliability | Standard | High Reliability | Standard | Standard |
| CAS Latency (CL) | CL19 | CL11 | CL19 | CL11 | CL11 |
| Voltage | 1.2V | 1.5V | 1.2V | 1.35V | 1.35V |
| ECC Support | Yes | No | Yes | No | No |
| Registered/Buffered | Registered | Unbuffered | Registered | Unbuffered | Unbuffered |
| XMP Support | No | No | No | Intel XMP 2.0 | No |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | No | No | Yes | Yes | Yes |
| Intel Platform Support | Intel Xeon Scalable | N/A | Intel Xeon Scalable | N/A | N/A |
| AMD Platform Support | AMD EPYC | N/A | AMD EPYC | N/A | N/A |
| Use Case | Server | Gaming | Server | Gaming / Workstation | Gaming |
| Product Name | D4RD-2666-16G | RAMEC1600DDR3-4GBX2 | D4RD-2666-32G | D3NS1866L-4G | RAM1600DDR3L-8GBX2 |
| Height | N/A | N/A | 1.2 inches | 1.2 inches | N/A |
| Width | N/A | N/A | 5.3 inches | 5.3 inches | N/A |
| Depth | N/A | N/A | 0.3 inches | 0.5 inches | N/A |
| Weight | N/A | N/A | 0.3 lbs | 0.25 lbs | N/A |
Reviews & Ratings
I
Ivy Sinclair
4
Consistent 2666MHz speed and perfect compatibility. This module provides the professional stability required for our server workloads.
R
Roman Pierce
5
Exceptional build quality and dependable throughput. A trustworthy choice for maintaining high performance in our data center.
S
Sloane Hunter
3
Robust ECC memory with excellent mechanical stability. It effectively handles our data-intensive tasks with high efficiency and reliability.
T
Tobias Grant
4
Top-tier reliability for professional servers. This RDIMM significantly improves our system's overall data processing and multitasking capabilities.
Questions & Answers
What is the capacity and speed of the D4RD-2666-16G module?
The D4RD-2666-16G is a 16 GB DDR4 RDIMM ECC memory module rated at 2666 MT/s for high-performance server applications.
Is the D4RD-2666-16G compatible with my server motherboard?
This module is compatible with any DDR4 RDIMM ECC–capable motherboard that supports 2666 MT/s speeds and registered ECC memory.
What does ECC support mean for this RAM?
ECC (Error-Correcting Code) automatically detects and corrects single-bit memory errors, improving system reliability and uptime in critical environments.
Can I mix the D4RD-2666-16G with non-ECC or UDIMM modules?
No, mixing RDIMM ECC modules with non-ECC UDIMMs is not recommended and may cause system instability or prevent booting.