Synology RAM DDR4 ECC Unbuffered SODIMM 16GB (D4ES01-16G) Black
Price not confirmed for 19 days. Amazon has not confirmed this price since 17 Oct 2026 (19 days ago), so check the current price on Amazon. Amazon stopped returning this item through its price feed, so we cannot check it automatically; the £/GB figure and the history below are from the last price we saw.
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 £692.60 12-month low £287.72 All-time low £287.72 (2026-01-29)
12-month low Today’s price is 100% below this kit’s typical price for the past year, and it has been cheaper than this for 97% of that year (last on 8 Sep 2026). Why medians, not averages ›
30-day avg £968.6990-day avg £861.78180-day avg £1,089.59 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £4.88best £/GB | £78.00▼ 9% | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £5.00 | £79.99 | 16GB | motoeagle | Laptop | DDR4 | SO-DIMM 2400MHz | Non-ECCUnbuffered | |
 | £5.12 | £81.97▼ 46% | 16GB | TEAMGROUP | Laptop | DDR4 | SO-DIMM | Unbuffered | |
 | £5.13 | £82.00 | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.15 | £82.46★▼ 35% | 16GB | Adamanta | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.25 | £83.99▼ 23% | 16GB | Crucial | Laptop | DDR4 | SO-DIMM 2400MHz | Non-ECCUnbuffered |
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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