
OWC 32GB (2X16GB) DDR4 RAM Compatible with Synology DiskStation DS723+ and DS923+ NAS System 2666MHz PC4-21300 CL19 ECC Unbuffered SODIMM 2Rx8 1.2V Memory Upgrade
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AI Verdict
This 32GB (2x16GB) DDR4 2666MHz ECC unbuffered SODIMM kit provides a direct, compatible memory upgrade for specific Synology NAS models like the DS723+ and DS923+.
This OWC 32GB DDR4 2666MHz ECC SODIMM kit is a strong fit for its intended purpose, offering verified compatibility with numerous Synology NAS models, including the DS723+ and DS923+. User reports confirm seamless installation and the absence of 'unofficial RAM' warnings, directly addressing common concerns with Synology memory upgrades.
If your Synology NAS supports higher memory capacities or speeds, check your specific model's maximum RAM support and consider kits with 64GB capacity or 3200MHz speed if compatible and beneficial for your workload.
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Pros
- Directly compatible with a broad list of Synology NAS models, including DS723+, DS923+, DS1522+, DS1618+, DS1821+, and many others.
- Users report no 'unofficial RAM' warning messages from Synology DSM after installation.
- Features ECC (Error-Correcting Code) technology to safeguard data integrity.
- Installation is often a straightforward DIY project.
- Backed by a Limited Lifetime Warranty and free tech support from OWC.
- Backward compatible with 2400MHz and 2133MHz memory speeds.
Cons
- The 2666MHz speed, while standard for compatible Synology models, is not the fastest DDR4 available on the market.
- Compatibility is specific to listed Synology NAS models, not a universal DDR4 SODIMM solution.
- Not designed for systems that require higher memory speeds or non-ECC memory.
- No specific complaints found in user reviews regarding product functionality or defects.
Dimension Scores
The 2666MHz PC4-21300 CL19 speed is standard and appropriate for the specified Synology NAS systems, but not a top-tier speed for DDR4 memory generally.
This RAM offers verified and widely reported compatibility with a comprehensive list of Synology NAS models, including the DS723+ and DS923+, without triggering unofficial RAM warnings.
As ECC unbuffered SODIMM designed for NAS systems, this memory is not intended for overclocking, and such functionality is not present or expected.
The inclusion of ECC memory for data integrity, combined with OWC's limited lifetime warranty and free tech support, indicates a high level of reliability for its intended use.
Best For
- Synology DS723+ and DS923+ owners seeking to upgrade to 32GB ECC RAM.
- Users running data-heavy applications or virtual machines on compatible Synology NAS systems.
- Individuals looking to boost multitasking and data processing speed on their Synology NAS.
- Anyone prioritizing data integrity with ECC memory in their NAS environment.
Not Recommended For
- Synology NAS models not explicitly listed in the extensive compatibility list.
- Systems requiring DDR4 memory faster than 2666MHz.
- Users who do not need ECC memory and are looking for a more budget-focused, non-ECC option.
Watch Out For
- No specific recurring complaints or functional pitfalls were identified from user feedback for this particular OWC RAM kit. Users consistently report it working as advertised without issues or Synology warnings.
Full Specifications
| RAM | 32 GB DDR4 |
| ASIN | B0CCF65QG4 |
| Brand | OWC |
| Series | 2C6D42R816GB |
| Voltage | 1.2 Volts |
| Item Weight | 2.08 ounces |
| Manufacturer | Other World Computing |
| Memory Speed | 2666 MHz |
| Item model number | OWC2C6D42R8032P |
| Compatible Devices | SYNOLOGY DS1618+, SYNOLOGY DS1621+, SYNOLOGY DS1819+, SYNOLOGY DS1821+, SYNOLOGY DS923+ |
| Package Dimensions | 6.89 x 5 x 0.55 inches |
| Computer Memory Size | 32 GB |
| Computer Memory Type | DDR4 SDRAM |
| RAM Memory Technology | DDR4 |
What Buyers Say
Users consistently report that this OWC 32GB RAM kit functions exactly as advertised, with multiple confirmations of it working in various Synology NAS models, including the DS1522+ and DS923+. A recurring point of satisfaction is the absence of Synology's 'unofficial RAM' warning messages, which is a common concern for Synology owners. The installation process is described as seamless, allowing users to immediately see the full 32GB capacity recognized by their NAS. The memory upgrade is noted to enhance multitasking and overall system responsiveness for data-intensive applications.
“I was so worried about that stupid Synology RAM warning, but I popped these OWC sticks into my DS923+ and boom, 32GB showing, no warnings, just works. Totally worth it for my Plex server.”
Common Praise
- Works without triggering Synology's 'unofficial RAM' warning messages.
- System immediately recognizes and displays the full 32GB of RAM.
- Installation is easy and straightforward.
- Enhances multitasking and responsiveness for NAS operations.
- Functions perfectly in various compatible Synology models like DS1522+ and DS923+.
- Passes memory tests without stability issues.
Common Complaints
- No specific recurring complaints about the product's functionality, compatibility, or performance were found in user reviews.
Ownership Tips
- Continues to operate without issues over several months of use in compatible Synology NAS units.
- Handles demanding applications like Hyper Backup without problems, indicating stable performance.
- Allows for maximizing the memory capacity of the NAS, enabling more efficient handling of data.
- Provides a noticeable improvement in system responsiveness when running multiple services simultaneously.
Frequently Asked Questions
Is this OWC RAM compatible with my Synology NAS?
Yes, this RAM is compatible with a wide range of Synology NAS models, including DS723+, DS923+, DS1522+, DS1618+, DS1621+, DS1819+, DS1821+, and many others listed in the product specifications.
Will installing this RAM trigger an 'unofficial RAM' warning in Synology DSM?
Users have reported that this OWC RAM kit works without triggering any 'unofficial RAM' warning messages in Synology DSM on compatible devices.
How does upgrading to 32GB RAM impact NAS performance?
Upgrading to 32GB of RAM significantly enhances NAS performance by allowing the system to handle more simultaneous tasks, improve data processing speed, and boost multitasking capabilities for applications like file transfers, backups, and media streaming.
Is the installation process difficult for this memory upgrade?
Installation is generally considered an easy DIY project. OWC also provides an installation video to guide users through the process.
Does this RAM include Error-Correcting Code (ECC)?
Yes, this OWC RAM features ECC (Error-Correcting Code) technology, which helps detect and correct memory errors to ensure data integrity.
Buying Guide
When buying RAM for a NAS, you're not just looking for raw speed; compatibility is king. Your NAS model has specific requirements for memory type (DDR4), form factor (SODIMM), speed (MHz), and whether it needs ECC (Error-Correcting Code) or not. Getting the wrong RAM can lead to boot failures, instability, or annoying 'unofficial RAM' warnings from your NAS's operating system.
Capacity (32GB)
This is how much data your NAS can actively work with. More capacity means your NAS can handle more simultaneous tasks, run more Docker containers or virtual machines, and generally feel snappier, especially with heavy file operations or media streaming.
Type (DDR4 SODIMM)
This defines the generation and physical size of the memory module. DDR4 is the current standard, and SODIMM is the smaller form factor typically used in laptops and compact devices like NAS units. You can't mix DDR3 with DDR4, or DIMM with SODIMM.
Speed (2666MHz)
This is how quickly the RAM can process data. While faster RAM is generally better, your NAS's CPU and motherboard have a maximum supported speed. Installing faster RAM than your NAS supports won't make it run faster; it will just operate at the maximum supported speed or not work at all.
ECC (Error-Correcting Code)
ECC memory can detect and correct common types of internal data corruption. For a NAS, which often stores critical data, ECC provides an extra layer of data integrity, reducing the risk of silent data corruption that could lead to file loss or system instability.
Alternatives
If this kit doesn't fit your needs, search for DDR4 SODIMM RAM with a different capacity (e.g., 16GB or 64GB) or a higher speed if your specific NAS model supports it, always prioritizing ECC if your system requires it for data integrity.



