Synology RAM DDR4 ECC Unbuffered SODIMM 16GB (D4ES01-16G) Black
1505% dearer per GB than the average 16GB DDR4 kit we track.
Specification
| Capacity | 16GB |
| Generation | DDR4 |
| Form factor | SO-DIMM |
| ECC | ECC |
| Buffered | Unbuffered |
| For | Server |
| Brand | Synology |
| ASIN | B09JNR33G6 |
Price history
Typical price (median) 90-day £732.88 12-month £684.43 12-month low £287.72 All-time low £287.72 (2026-01-29)
Dear for the market Today’s price is 221% above this kit’s typical price for the past year, and it has been cheaper than this for 100% of that year (last on 8 Sep 2026). At £137.46/GB it is dear against the £6.69/GB typical for DDR4 today. Why medians, not averages ›
30-day avg £766.1690-day avg £830.80180-day avg £1,072.16 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £4.94best £/GB | £79.00▼ 15% | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £5.00 | £79.99 | 16GB | motoeagle | Laptop | DDR4 | SO-DIMM 2400MHz | Non-ECCUnbuffered | |
 | £5.00 | £80.00 | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.26 | £84.09▼ 12% | 16GB | Integral | Mac | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2133MHz | Unbuffered | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered |
About this kit
- 5-year warranty
- Built and designed for maximum performance and reliability in Synology devices
- 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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