Synology 16GB Ecc DDR4 Dram Module For RAM Module For RS2418(RP)+, RS2818RP+, RS3618xs, RS3617xs+, RS3617RPxs, RS4017xs+, RS1619xs+, UC3200 D4EC-2666-16G
SKU
372921
Brand
MPN
D4EC-2666-16G
Warranty
Standard Manufacturer's Warranty
Availability
In stock
$2,504.00
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for RS2418(RP)+, RS2818RP+, RS3618xs, RS3617xs+, RS3617RPxs, RS4017xs+, RS1619xs+, UC3200
RAM module for RS2418(RP)+, RS2818RP+, RS3618xs, RS3617xs+, RS3617RPxs, RS4017xs+, RS1619xs+, UC3200
| SKU | D4EC-2666-16G |
|---|---|
| UPC | 846504003754 |
| ASIN | B08BV2GDVN |
| Rank | Dual Rank (2Rx8) |
| Brand | Synology |
| Model | D4EC-2666-16G |
| Notes | Multiple sellers list this part as the OEM Synology module D4EC-2666-16G; third-party vendors also sell compatible/rebranded modules with matching specs. Ensure firmware/DSM compatibility for your specific Synology NAS model before installation. |
| Voltage | 1.2 V |
| Capacity | 16 GB |
| Warranty | Synology: limited 5-year warranty (reported) Arch Memory (rebranded units): limited lifetime replacement warranty (reported) Other vendor-reported terms: 90 days (some resellers) or 30-day money-back guarantees (seller-specific) |
| Bus Speed | 2666 MHz (2666 MT/s) |
| PC Rating | PC4-21300 |
| Pin Count | 288 |
| CAS Latency | 19 (CL19) |
| Description | 16GB DDR4-2666 (PC4-21300) ECC unbuffered UDIMM designed for Synology NAS systems. Single 16GB module (1 x 16GB) operating at 2666 MT/s with 1.2V, CL19 timing and Dual Rank (2Rx8) organization. Provides ECC error correction for improved data integrity and is offered by Synology as model D4EC-2666-16G (also sold by third-party brands such as Arch Memory and Axiom). Compatible with a range of Synology NAS and controller units (see Compatibility). Install notes observed in vendor documentation: some NAS models require DSM/firmware version checks (for example RS4017xs+ requires DSM 6.2.2-24922-6 or later) and some sellers advise installing memory modules in pairs and using specific slots. Warranty terms vary by vendor/manufacturer (see Warranty). |
| Form Factor | 288-pin UDIMM (288-pin DIMM) |
| Item Weight | 2.08 ounces (approx. 0.13 lb / 59 g) |
| Memory Type | DDR4-2666 / PC4-21300 |
| Manufacturer | Synology |
| Compatibility | SA3200D SA3400D UC3200 UC3400 RS4021xs+ RS3621xs+ RS3621RPxs RS2821RP+ RS2421RP+ RS2421+ RS1619xs+ RS3618xs RS2818RP+ RS2418RP+ RS2418+ RS4017xs+ RS3617xs+ RS3617RPxs |
| Product Title | Synology D4EC-2666-16G 16GB DDR4-2666 ECC UDIMM (288-pin) |
| TAA Compliant | Yes (reported by at least one vendor) |
| Package Weight | 0.13 lb (as reported by some vendors) |
| Memory Standard | DDR4-2666 |
| Country of Origin | Taiwan |
| Memory Technology | DDR4 |
| Number of Modules | 1 x 16 GB |
| Signal Processing | Unbuffered |
| Buffered/Registered | Unbuffered (UDIMM) |
| Compatibility Notes | Some NAS models require specific DSM/firmware versions (example: RS4017xs+ requires DSM 6.2.2-24922-6 or later). Some vendors/sellers recommend installing modules in pairs and using specific slots (follow vendor install guide). |
| Error Correction (ECC) | Yes |
| Manufacturer Part Number | D4EC-2666-16G |
| Item Dimensions (L x W x H) | 5.19 x 0.06 x 1.19 inches |
| Alternate Brands / Rebrands Observed | Arch Memory (compatible/rebranded units) Axiom (compatible/rebranded units) |
Synology 16GB ECC DDR4 DRAM MODULE for RAM module for RS2418(RP)+, RS2818RP+, RS3618xs, RS3617xs+, RS3617RPxs, RS4017xs+, RS1619xs+, UC3200
