Synology SODIMM Non-ECC RAM DDR4 4GB (D4NS01-4G)
699% dearer per GB than the average 4GB DDR4 kit we track.
Specification
| Capacity | 4GB |
| Generation | DDR4 |
| Form factor | SO-DIMM |
| ECC | Non-ECC |
| Buffered | Unbuffered |
| For | Laptop |
| Brand | Synology |
| ASIN | B0F8HVXW96 |
Price history
Typical price (median) 90-day £328.58 12-month £148.80 12-month low £74.05 All-time low £69.85 (2025-07-07)
Dear for the market Today’s price is 118% above this kit’s typical price for the past year, and it has been cheaper than this for 91% of that year (last on 16 Sep 2026). At £81.26/GB it is dear against the £8.22/GB typical for DDR4 today. Why medians, not averages ›
30-day avg £326.4590-day avg £323.83180-day avg £274.30 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £6.38best £/GB | £25.51 | 4GB | Karmatech | Laptop | DDR4 | SO-DIMM 3200MHz | Unbuffered | |
| £6.66 | £26.62 | 4GB | Karmatech | Laptop | DDR4 | SO-DIMM 3200MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2133MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Mac | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Mac | DDR4 | SO-DIMM 2666MHz | Unbuffered |
About this kit
- 5-year warranty
- Built and designed for maximum performance and reliability in Synology devices
- Applied Models: 25 series DS425+
- Please check Synology website for compatible models
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.
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