BytecRAM 8GB D4ES03-8G Replacement for Synology DS925+ DDR4-2666 SODIMM ECC
112% dearer per GB than the average 8GB DDR4 kit we track.
Specification
| Capacity | 8GB |
| Generation | DDR4 |
| Speed | 2666MHz |
| Form factor | SO-DIMM |
| ECC | ECC |
| Buffered | Unbuffered |
| For | Server |
| Brand | BytecRAM |
| ASIN | B0FQTYW7Z1 |
Price history
Typical price (median) 90-day £158.53 12-month £179.10 12-month low £139.27 All-time low £139.27 (2026-09-08)
Dear for the market Today’s price is 9% below this kit’s typical price for the past year, and it has been cheaper than this for 9% of that year (last on 13 Sep 2026). At £20.32/GB it is dear against the £8.22/GB typical for DDR4 today. Why medians, not averages ›
30-day avg £147.2890-day avg £161.11180-day avg £182.32 (averages are pulled up by price spikes; the medians above are the better guide)
Cheaper per GB in the same spec
Same generation, capacity and form factor as this kit, ranked by £/GB. See all ›
| £/GB | Price | Capacity | Manufacturer | For | Type | Form Factor | ECC / Buffered | Description | |
|---|---|---|---|---|---|---|---|---|---|
 | £5.31best £/GB | £42.49▼ 28% | 8GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.38 | £43.00 | 8GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.62 | £44.99 | 8GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £6.00 | £48.00 | 8GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2133MHz | Unbuffered | |
 | £6.00 | £48.00 | 8GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
| £6.00 | £48.00 | 8GB | GLOBAL MEMORY | Mac | DDR4 | SO-DIMM 2400MHz | Unbuffered |
About this kit
- High-Speed Performance: Unleash lightning-fast speeds with this BytecRAM memory module.
- Compatibility: Designed for seamless integration with Network Attached Storage systems supporting and using this generation of RAM.
- Increased Capacity: Boost your NAS' memory capacity for smoother multitasking and resource-intensive applications.
- Easy Installation: Plug-and-play RAM design allows for hassle-free memory upgrades in compatible systems.
At BytecRAM, we specialize in high-performance SDRAM modules designed to elevate your original computer's capabilities. Whether you're upgrading your desktop, laptop, or building a custom PC, our range of OEM components, including UDIMM, SODIMM, and PC3, PC4, and PC5 sticks, offers the perfect solution for boosting your system's speed and efficiency. Our products are compatible with a variety of motherboards, ensuring seamless integration and reliable performance. Whether you're enhancing your network or need a top-tier disk for storage, BytecRAM provides only the best components for your setup. We offer computer cards, modules, and chips designed to meet the demands of today's most powerful systems. Trust BytecRAM for all your computer component needs and experience the difference of high-quality, performance-driven products that help you get the most out of your PC or notebook.
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