--- product_id: 170382539 title: "Synology SODIMM Non-ECC RAM DDR4-2666 4GB (D4NESO-2666-4G)" brand: "synology" price: "¥82919" currency: JPY in_stock: true url: https://www.desertcart.jp/products/170382539-synology-sodimm-non-ecc-ram-ddr4-2666-4gb-d4neso-2666 store_origin: JP region: Japan --- # 2666 MHz high-speed DDR4 4GB SO-DIMM DDR4 capacity 5-year Synology warranty Synology SODIMM Non-ECC RAM DDR4-2666 4GB (D4NESO-2666-4G) **Brand:** synology **Price:** ¥82919 **Availability:** ✅ In Stock ## Summary > ⚡ Power your Synology NAS with speed and stability — upgrade like a pro! ## Quick Answers - **What is this?** Synology SODIMM Non-ECC RAM DDR4-2666 4GB (D4NESO-2666-4G) by synology - **How much does it cost?** ¥82919 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/170382539-synology-sodimm-non-ecc-ram-ddr4-2666-4gb-d4neso-2666) ## Best For - synology enthusiasts ## Why This Product - Trusted synology brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Avoid Downtime & Instability:** Authentic modules prevent boot failures and system crashes—don’t risk it with generic RAM - • **Reliable Non-ECC DDR4 Memory:** Unbuffered SO-DIMM designed to maximize performance without compromising stability - • **Optimized for Synology Servers:** Guaranteed compatibility with RS and DS series models for seamless upgrades - • **High-Speed 2666 MHz Data Transfer:** Boost your NAS responsiveness and multitasking with fast memory throughput - • **Peace of Mind with 5-Year Warranty:** Synology backs your investment with industry-leading support and reliability ## Overview The Synology SODIMM Non-ECC DDR4-2666 4GB RAM module is engineered specifically for Synology NAS devices, ensuring optimal compatibility and performance. With a fast 2666 MHz data rate, unbuffered SO-DIMM form factor, and backed by a 5-year warranty, this memory upgrade enhances system responsiveness and reliability while preventing instability issues common with non-authentic modules. ## Description Always select authentic Synology memory modules for optimum compatibility and reliability. Installation of non-Synology memory modules can lead to system instability or boot failures. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information on memory upgrade limitations, visit Synology website. ## Features - DDR4 non-ECC unbuffered SO-DIMM - Applied Models: RS820RP+, RS820+, DS2419+, DS1819+, DS1618+, DVA3219 - System ram type: ddr4_sdram - Applied Models:20 series:RS820RP+, DS920+, DS720+, DS420+, DS220+,19 series:DS2419+, DS1819+,18 series:DS1618+ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X5MMGWG | | Additional Features | Built and designed for maximum performance and reliability in Synology devices | | Best Sellers Rank | #785 in Computer Memory | | Brand | Synology | | Column Address Strobe Latency | CL19 Nanoseconds | | Compatible Devices | Server | | Customer Reviews | 4.8 4.8 out of 5 stars (1,210) | | Data Transfer Rate | 2666 MHz | | Form Factor | SO-DIMM | | Global Trade Identification Number | 00846504003662, 04711174723669 | | Item Weight | 0.02 Kilograms | | Manufacturer | Synology | | Memory Form Factor | SODIMM | | Memory Generation | DDR4 | | Memory Speed | 3200 MT/s | | Mfr Part Number | D4NESO-2666-4G | | Model Name | D4NESO-2666-4G | | Model Number | D4NESO-2666-4G | | Number of Pins | 260 | | RAM Memory Technology | DDR4 | | RAM Size | 4 GB | | UPC | 846504003662 | | Unit Count | 1.0 Count | | Voltage | 1.2 Volts | | Warranty Description | 5 Years | ## Product Details - **Brand:** Synology - **Compatible Devices:** Server - **Computer Memory Size:** 4 GB - **Memory Speed:** 3200 MT/s - **RAM Memory Technology:** DDR4 ## Images ![Synology SODIMM Non-ECC RAM DDR4-2666 4GB (D4NESO-2666-4G) - Image 1](https://m.media-amazon.com/images/I/612ZzLNDauL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Any reason why one can't use a crucial or samsung ram which is same speed for a fraction of the price?** A: SAMSUNG M471A1K43CB1-CTD 8GB DDR4 will work and not give warnings. Also, it's double the memory for half the price. **Q: Just wondering why this is $90 when you can buy an equivalent piece for $30 elsewhere?** A: I use cheaper modules and they work fine **Q: Compatible with DS2419+?** A: For the price of Synology Branded memory and the fallout for having gotten it wrong, do not trust this type of Q/A to some random stranger off of amazon. Open Synology's official documentation about what memory is supported in what system and go off of that. **Q: Is this a synology oem part (d4neso-2666-4g) or is this an off-brand?** A: It’s Synology branded RAM ## Frequently Bought Together - Synology SODIMM Non-ECC RAM DDR4-2666 4GB (D4NESO-2666-4G) - Synology 2-Bay DiskStation DS224+ (Diskless) - Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/170382539-synology-sodimm-non-ecc-ram-ddr4-2666-4gb-d4neso-2666](https://www.desertcart.jp/products/170382539-synology-sodimm-non-ecc-ram-ddr4-2666-4gb-d4neso-2666) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-21*