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Product Code: RMHO-8996
MPN #: D4ECSO-2666-16G
Product Condition: New
Running out of memory on your Synology NAS can slow backups, stall virtual machines and cause data errors - a frustrating bottleneck for any small business or home office. The Synology D4ECSO-2666-16G 16GB/2666MHz ECC SO-DIMM 260-pin Ram Module is a high-quality DDR4 memory upgrade that restores speed and reliability, letting you keep your files safe and your workflows smooth.
You gain instant performance lift, so daily tasks finish faster and you experience fewer interruptions. The ECC technology continuously checks and corrects errors, giving you peace of mind that critical data stays intact. Its unbuffered design works seamlessly with existing Synology systems, avoiding complex configuration. The 16GB capacity provides enough headroom for multiple applications, extending the life of your device without costly replacements.
Upgrade your NAS for smoother file transfers and quicker backup windows.
Boost virtual machine performance when running multiple guest OSes.
Enhance surveillance storage handling for high-resolution video streams.
Support intensive database applications without lag.
Improve overall system responsiveness during heavy multi-user access.
Many buyers worry about compatibility, fearing that a generic stick might not work with their Synology NAS or could void the warranty. Others are unsure whether the extra cost of ECC memory is justified for everyday use. These concerns often lead to hesitation or the purchase of the wrong part.
The Synology D4ECSO-2666-16G 16GB/2666MHz ECC SO-DIMM 260-pin Ram Module removes that doubt. It is an OEM-approved, system-specific upgrade that matches the exact specifications required by Synology devices. With ECC error-checking, the module safeguards your data while delivering the 2666 MHz speed you need for demanding tasks, making it a reliable, future-proof investment for any Synology user.
| Miscellaneous | |
| Miscellaneous / OEM Manufacturer Equivalent Part Number | Synology D4ECSO-2666-16G |
| Header | |
| Header / Product Line | Synology |
| Header / Packaged Quantity | 1 |
| Memory | |
| Memory / Form Factor | SO-DIMM 260-pin |
| Memory / Data Integrity Check | ECC |
| Memory / Technology | DDR4 SDRAM |
| Memory / Speed | 2666 MT/s (PC4-21300) |
| Memory / Type | DRAM memory module |
| Memory / Features | Unbuffered |
| General | |
| General / Capacity | 16 GB |
| General / Upgrade Type | System specific |
| General / OEM Manufacturer Equivalent Part Number | Synology D4ECSO-2666-16G |
| RAM | |
| RAM / Form Factor | SO-DIMM 260-pin |
| RAM / Registered or Buffered | Unbuffered |
| RAM / Product Type | Memory module |
| RAM / Upgrade Type | System specific |
| RAM / Type | DRAM |
| RAM / Memory Specification Compliance | PC4-21300 |
| RAM / Data Integrity Check | ECC |
| RAM / Technology | DDR4 SDRAM |
| RAM / Storage Capacity | 16GB |
| Summary Details | |
| Component for | PC/Server |
| Internal memory | 16 GB |
| Memory layout (modules x size) | 1 x 16 GB |
| Internal memory type | DDR4 |
| Memory clock speed | 2666 MHz |
| Memory form factor | 260-pin SO-DIMM |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)