SYNOLOGY 03-43004G101 Ecc Ram Sdram Dimm Memory D4ES04-4G DDR4 4GB 260-PIN

( Brand: Synology ), ( Manufacturer Part Number: 03-43004G101 ), ( Model: D4ES04-4G ), ( Form Factor: So-dimm ), ( Type: Ecc Ram, Ddr4 Sdram ), ( Total Capacity: 4 Gb ), ( Number Of Pins: 260 ), ( Memory Features: Ecc Memory )

Review SYNOLOGY Ecc Ram Ddr4 Sdram So dimm 4gb 260-pin Memory

The **Synology D4ES04-4G (03-43004G101) 4GB ECC DDR4 SDRAM SO-DIMM Memory Module** is a high-performance, enterprise-grade memory solution meticulously engineered to deliver exceptional reliability, speed, and efficiency for Synology NAS systems. Designed with **260-pin SO-DIMM form factor**, this module seamlessly integrates into Synology s advanced storage platforms, including the **DS920 **, **DS1821 **, **RS1221RP **, and other select models, ensuring optimal performance for demanding workloads such as virtualization, database management, media streaming, and large-scale file sharing. Built with **4GB of DDR4 SDRAM**, this module provides ample capacity to handle intensive multi-tasking environments, reducing latency and enhancing overall system responsiveness.

One of the standout features of this memory module is its **ECC (Error-Correcting Code) technology**, which actively detects and corrects single-bit errors in real-time, significantly improving data integrity and preventing costly downtime or data corruption critical for mission-critical applications where uptime and accuracy are non-negotiable. The **DDR4 architecture** ensures faster data transfer rates compared to older DDR3 standards, enabling quicker processing of large datasets, faster application launches, and smoother multitasking performance. With a **low-power design**, this module operates efficiently, contributing to reduced heat generation and extended hardware longevity, which is particularly beneficial for 24/7 NAS deployments.

Synology s rigorous quality control ensures that every **D4ES04-4G** module undergoes stringent testing to meet strict performance benchmarks, including **low latency, high stability, and compatibility with Synology s proprietary firmware**. The module s **unbuffered (UDIMM) configuration** allows for seamless integration with Synology s optimized memory controllers, further enhancing system stability and performance. Whether deployed in a small home office, a mid-sized business environment, or a large-scale data center, this memory module serves as a dependable foundation for high-performance NAS operations, ensuring that users can rely on their storage infrastructure to deliver consistent, high-speed performance without compromise. Ideal for users seeking a balance of capacity, reliability, and efficiency, the **Synology D4ES04-4G** is a premium choice for those who demand nothing less than peak performance from their NAS systems.

### **Pros and Cons of Buying Synology 03-43004G101 (4GB ECC DDR4 SO-DIMM Memory)**

1. **Compatibility with Synology NAS Systems** This is a **Synology-certified** memory module designed specifically for Synology NAS devices (such as the DS420 , DS920 , RS2421RP , etc.). It ensures optimal performance and stability, reducing the risk of compatibility issues that generic RAM might cause.

2. **ECC (Error-Correcting Code) Memory** ECC RAM helps detect and correct single-bit errors, which is crucial for NAS systems where data integrity is paramount. This reduces the likelihood of data corruption, especially in long-term storage or high-availability setups.

3. **DDR4 Technology** DDR4 offers **better power efficiency and higher bandwidth** compared to older DDR3 modules, leading to improved overall system performance, especially in multi-tasking environments like NAS storage.

4. **Low Power Consumption** DDR4 modules generally consume less power than DDR3, which can contribute to lower heat generation and longer lifespan for the NAS hardware.

5. **Reliability for NAS Use** Synology NAS devices are designed for **24/7 operation**, and using Synology-approved memory ensures better longevity and fewer crashes due to memory errors.

6. **Easy Installation** The SO-DIMM form factor is standard for many Synology models, making it straightforward to upgrade or replace existing RAM.

7. **Synology Warranty Support** Since this is an official Synology part, it may be covered under Synology s warranty or support policies, unlike third-party modules that could void warranties.

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1. **Limited Availability & Higher Cost** Synology-certified memory is often **more expensive** than generic DDR4 SO-DIMM modules. It may also be harder to find in stock compared to non-branded alternatives.

2. **Fixed Capacity (4GB)** This module only provides **4GB of RAM**, which may be insufficient for **heavy workloads** (e.g., large-scale file sharing, virtualization, or media transcoding). Users with high-demand NAS setups may need multiple modules (e.g., 8GB or 16GB configurations).

3. **Not Upgradable on All Synology Models** Some older or budget Synology NAS devices (e.g., DS218 ) may **not support this specific module** due to different RAM slot configurations or voltage requirements. Always verify compatibility before purchasing.

4. **Potential Overkill for Basic Use** If your NAS is used primarily for **simple file storage** (e.g., 1-2TB drives, light access), 4GB may be **more than enough**, and upgrading to a higher-capacity module could be unnecessary.

5. **No Future-Proofing for Advanced Features** Some newer Synology models (e.g., DS920 , RS2421RP ) support **higher RAM capacities (up to 32GB)**. If you plan to expand later, you may need to purchase additional modules, which could increase costs.

6. **No Speed or Latency Advantages Over Generic DDR4** Unlike some high-end server RAM, this module does **not** offer significantly higher speeds (e.g., 2400MHz vs. 2133MHz), so performance gains may be minimal unless your NAS supports faster RAM.

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The **Synology 03-43004G101 (4GB ECC DDR4 SO-DIMM)** is a **reliable, certified choice** for users who need **stable, low-error RAM** in a Synology NAS. It is ideal for:

- **Small to medium NAS setups** where data integrity is critical.

- **Users who want Synology s warranty and support coverage.**

- **Those who prefer official parts over generic alternatives.**

- You need **more than 4GB** (consider multiple modules or higher-capacity options).

- Your NAS is **already well-optimized** with existing RAM.

- You re working with **budget constraints** (generic ECC DDR4 may suffice for some models).

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- You own a **Synology NAS that officially supports it** (check Synology s compatibility list).

- You prioritize **data reliability** (ECC is a strong advantage).

- You want **official Synology support** and warranty coverage.

- You need **more than 4GB** (e.g., two 4GB modules for 8GB total).

- Your NAS **doesn t support this specific module** (check Synology s documentation).

- You re on a **tight budget** and can verify that a **generic ECC DDR4 SO-DIMM** (e.g., from Crucial, Kingston) works without issues.

For most **home or small-business NAS users**, this is a **solid, safe choice**, but always **double-check compatibility** before purchasing. If you plan to expand RAM later, purchasing a **higher-capacity module (e.g., 8GB or 16GB)** upfront may be more cost-effective in the long run.

Details:

Synology ECC RAM DDR4 SDRAM SO-DIMM 4GB 260-Pin Memory D4ES04-4G.

part #: 0343004g101 prices

• $375.93-$967.30

specifications servermemor:

• brand: Synology
• mpn: 03-43004g101
• model: D4es04-4g
• form factor: So-dimm
• type: Ecc Ram, Ddr4 Sdram
• total capacity: 4 Gb
• number of pins: 260
• memory features: Ecc Memory

shipping servermemor:

• class: Standard
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage
• cost: $5.29
• transit: 5-11 Days

payments servermemor:

• wallet: Google-pay
• other
• credit card: Discover

returns servermemor:

• policy: No Returns

general servermemor:

• condition: Used
• Enterprise Networking, Servers > Server Components > Server Memory RAM

seller servermemor:

• rating: 100.0%
• # reviews: 148
• city: Newfield, New Jersey

offer servermemor:

• started: April 23, 2026
• options: Ship-to-home
• quantity: 1
• best offers: True
• sold: 0
• availability: In Stock

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