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CAS-NASBOX-D4EU01-4G

Synology 4GB DDR4 ECC ECC unbuffered DIMM V1.0 RAM module

Synology - Synology 4GB DDR4 ECC ECC unbuffered DIMM V1.0 RAM module, Compatible with --> 21 Series : RS2821rp+ / RS2421rp+ / RS2421+ NAS uniys
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Prices, images and descriptions are for reference purposes only & may change without prior notice. PLEASE RELY ON ABOVE DESCRIPTIONS AND NOT ON IMAGES. CAS-NASBOX-D4EU01-4G Synology 4GB DDR4 ECC ECC unbuffered DIMM V1.0 RAM module is available from Laptop Direct and it is sold as new from our NAS - Accessories for NAS units range of products. For reference purposes, the price of R1730 is valid 2026-10-06, and while stocks last, may be valid until . The price displayed is a guide for reference purposes only, and may change without prior notice. Reference prices are an invitation for potential buyers to make an offer to purchase, which we may reject without reason. A quote with final pricing is sent before a purchase can be made. T&C's apply. E&OE. Laptop Direct. You are looking at products found in the NAS - Accessories for NAS units category.
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Specification for the entire series

Important information: Kindly note that specifications differ between models. Features, options and accessories displayed below this paragraph are not included with this product unless it has been specified in the above description.


Please remember these important points when reading the information below this paragraph: Operating systems cannot be removed or changed, monitors are not included with computers, free Anti-virus and Office Software are trial versions or may have limited features and an additional license needs to be purchased to activate the full product.

CAS-NASBOX-D4EU01-4G

Synology 4GB DDR4 ECC ECC unbuffered DIMM V1.0 RAM module

Synology 4GB DDR4 ECC ECC unbuffered DIMM V1.0 RAM module, Compatible with --> 21 Series : RS2821rp+ / RS2421rp+ / RS2421+ NAS uniys

Overview Summary:

Upgrade your Synology NAS with this reliable 4GB DDR4 ECC unbuffered RAM module, engineered for seamless compatibility with RS2421+, RS2421RP+, and RS2821RP+ systems. Designed to enhance system stability and data integrity, ECC technology helps detect and correct memory errors, making it ideal for business-critical storage environments.

Whether you're expanding your NAS capabilities or improving multitasking performance, this Synology-certified memory module ensures smooth operation and long-term reliability. Shop now and give your NAS the performance boost it needs for demanding workloads.

What tier does this fall into?

Entry-level enterprise reliability

What is this best for?

NAS memory upgrade, data storage systems, server performance improvement, business file management, multitasking enhancement

Overview:

Reliable 4GB DDR4 ECC Memory for Synology NAS Systems
The Synology 4GB DDR4 ECC unbuffered DIMM is designed to provide stable and efficient performance for compatible NAS environments. Built with error correction capability, it helps maintain data accuracy while supporting smooth system operations. This module is well suited for users looking to maintain consistent performance in business or professional storage setups without overextending system resources.

Description:

This 4GB DDR4 ECC memory module delivers dependable performance for Synology NAS units by reducing the risk of data corruption through built-in error correction. It supports improved system responsiveness during everyday tasks such as file sharing, backups, and light virtualization. Designed for compatibility and stability, it is an effective solution for maintaining reliable NAS performance in professional environments.

Features:

Technical Summary and Key Details
This module is engineered for systems that require consistent uptime and data protection. Its ECC functionality plays a critical role in preventing memory-related errors that could impact operations.

Important details include:

  • Memory type: DDR4 ECC unbuffered DIMM
  • Capacity: 4GB
  • EAN: 4711174724048
  • Form factor: UDIMM
  • Part number: CAS-NASBOX-D4EU01-4G

Compatibility with Synology NAS Models
This memory module is validated for select Synology 21 series rackmount systems, ensuring seamless integration and reliable operation within supported environments.

Supported models include:

  • RS2821RP+
  • RS2421RP+
  • RS2421+

When installed in compatible systems, it helps maintain stable performance for essential NAS functions such as file access, backup processes, and multi-user environments.

Practical Upgrade for Stable NAS Operation
For users running workloads that demand reliability over raw capacity, this 4GB ECC module provides a balanced upgrade path. It is particularly useful in environments where data integrity is critical, offering peace of mind through consistent error correction and dependable system behavior.

The CAS-NASBOX-D4EU01-4G module integrates easily into supported devices, making it a straightforward choice for maintaining or restoring optimal NAS performance.



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