NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM Compatible with Synology D4ES01-16G NAS Memory
66% dearer per GB than the average 16GB DDR4 kit we track.
Specification
| Capacity | 16GB |
| Generation | DDR4 |
| Speed | 2666MHz |
| Form factor | SO-DIMM |
| ECC | ECC |
| Buffered | Unbuffered |
| For | Server |
| Brand | NEMIX RAM |
| ASIN | B0CGKS9BLD |
Price history
Typical price (median) 90-day £152.50 12-month £140.87 12-month low £45.85 All-time low £45.85 (2025-10-07)
Dear for the market Today’s price is 68% above this kit’s typical price for the past year, and it has been cheaper than this for 63% of that year (last on 25 May 2026). At £14.82/GB it is dear against the £8.22/GB typical for DDR4 today. Why medians, not averages ›
30-day avg £151.2390-day avg £152.56180-day avg £151.34 (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▼ 8% | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £4.98 | £79.61▼ 17% | 16GB | OLOy | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.00 | £79.99 | 16GB | motoeagle | Laptop | DDR4 | SO-DIMM 2400MHz | Non-ECCUnbuffered | |
 | £5.13 | £82.00 | 16GB | SK Hynix | Laptop | DDR4 | SO-DIMM 2666MHz | Unbuffered | |
 | £5.16 | £82.52▼ 46% | 16GB | TEAMGROUP | Laptop | DDR4 | SO-DIMM | Unbuffered | |
 | £5.31 | £84.95 | 16GB | Integral | Mac | DDR4 | SO-DIMM 2400MHz | Unbuffered |
About this kit
- EXACT-MATCH UPGRADE — 16GB (1X16GB) DDR4-2666 (PC4-21300), 2Rx8, 1.2V, CL19, 260-pin SODIMM. The memory your Synology or compatible NAS needs, matched to your unit so it's recognized in full and runs reliably.
- VERIFIED FITMENT — Direct replacement for D4ES01-16G. The 260-pin SODIMM form factor for NAS units and compact systems that take laptop-style memory — not a desktop DIMM. Check your unit's supported memory and capacity before ordering.
- REAL-WORLD SPEEDUP — More memory means smoother multitasking and more headroom for apps, containers, and concurrent connections — steadier performance when your NAS is under load.
- CHECK YOUR CONFIG — NAS memory support varies by model. Check your unit's compatibility list and supported capacity in the manual or maker's spec page before purchase.
- LIFETIME SUPPORT — Backed by a lifetime replacement warranty and free US-based technical support.
NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM Compatible with Synology D4ES01-16G NAS Memory
As an Amazon Associate we earn from qualifying purchases. Price and availability shown are as of the last update and may change on Amazon.