Synology D4EC-2666-16G 16GB (16GB x 1) DDR4-2666 PC4-21300 1.2V DDR4 SDRAM UDIMM Unbuffered ECC CL19 NAS RAM Memory Module

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| Interface Types: | DDR4 DIMM 288pin |
| Form Factor: | DDR4 UDIMM |
| Electrical Interface: | PC4-21300 |
| RAM: | 16GB |
| Voltage: | 1.2V |
Description
Synology D4EC-2666-16G 16GB (16GB x 1) DDR4-2666 PC4-21300 1.2V DDR4 SDRAM UDIMM Unbuffered ECC CL19 NAS RAM Memory Module - Brand New
Synology D4EC-2666-16G 16GB (16GB x 1) DDR4-2666 PC4-21300 1.2V DDR4 SDRAM UDIMM Unbuffered ECC CL19 NAS RAM Memory Module - Brand New
Synology D4EC-2666-16G – Key Features
16 GB capacity — single DIMM for expanding system memory.
DDR4-2666 MHz (PC4-21300) — modern high-speed memory standard.
ECC (Error-Correcting Code) — detects and corrects memory errors to improve data integrity and system stability.
Unbuffered (UDIMM) form factor — standard non-registered module.
288-pin desktop/server DIMM — fits into supported NAS and server motherboards.
1.2 V operating voltage — consistent with standard DDR4 power.
Ideal for NAS / home server use — enhances memory capacity for multitasking, caching, and running apps.
Improves reliability — ECC helps reduce crashes and data corruption in always-on systems.
Compatible with the following Synology Units:
SA series:SA3400D, SA3200D
UC series:UC3400, UC3200
21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+
19 series:RS1619xs+
18 series:RS3618xs, RS2818RP+, RS2418RP+, RS2418+
17 series:RS4017xs+, RS3617xs+, RS3617RPxs
Compatibility
| Series | Compatible Models |
|---|---|
| SA series |
|
| UC series |
|
| 21 series |
|
| 19 series |
|
| 18 series |
|
| 17 series |
|
Specifications
| Brand | Synology |
|---|---|
| Manufacturer Part # (MPN) | D4EC-2666-16G |
| Capacity | 16GB |
| Memory Type | DDR4 ECC Unbuffered DIMM (UDIMM) |
| Speed | DDR4-2666 (PC4-21300) |
| Form Factor | 288-pin DIMM |
| ECC Support | Yes (ECC) |
| Buffered / Registered | No (Unbuffered / Unregistered) |
| Voltage | 1.2V |
| EAN | 4711174723751 |
| Warranty | 5 Years |
ROHS Compliant
Weight: 0.5 lb
Warranty: 1 Year DiscTech
Condition
The product is brand new.
Warranty
1 Year DiscTech Warranty




