Synology RAM DDR4 ECC SO-DIMM 8GB (D4ES01-8G)

£652.91 £81.61/GB

751% dearer per GB than the average 8GB DDR4 kit we track.

Server DDR4 ECC Unbuffered

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Specification

Price history

Typical price (median) 90-day £459.00 12-month £369.99 12-month low £149.60 All-time low £146.33 (2025-07-13)

Dear for the market Today’s price is 76% above this kit’s typical price for the past year, and it has been cheaper than this for 75% of that year (last on 22 Jun 2026). At £81.61/GB it is dear against the £8.22/GB typical for DDR4 today. Why medians, not averages ›

30-day avg £459.0090-day avg £464.01180-day avg £420.02 (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	HYNIX SK 8GB 1RX8 DDR4 SO-DIMM PC4-21300 2666MHZ Memory Module HMA81GS6JJR8N-VKBuy📈★★★★½341
	£5.38	£43.00	8GB	SK Hynix	Laptop	DDR4	SO-DIMM 2666MHz	Unbuffered	SK Hynix 8GB 2666MHz HMA81GS6JJR8N-VK Sodimm Memory ModuleBuy📈★★★★½269
	£5.62	£44.99	8GB	SK Hynix	Laptop	DDR4	SO-DIMM 2666MHz	Unbuffered	937236-852 / M471A1K43CB1-CTD GNRC-SODIMM 8GB 2666MHz 1.2v DDR4Buy📈★★★★☆1
	£6.00	£48.00	8GB	GLOBAL MEMORY	Laptop	DDR4	SO-DIMM 2133MHz	Unbuffered	8GB DDR4 2133MHz PC4-17000 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKSBuy📈★★½☆☆6
	£6.00	£48.00	8GB	GLOBAL MEMORY	Laptop	DDR4	SO-DIMM 2400MHz	Unbuffered	8GB DDR4 2400MHz PC4-19200 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKSBuy📈★★★★★2
	£6.00	£48.00	8GB	GLOBAL MEMORY	Mac	DDR4	SO-DIMM 2400MHz	Unbuffered	8GB DDR4 2400MHz PC4-19200 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH INTEL 27" RETINA 5K IMAC (2017)Buy📈★★★★½4

About this kit

• DDR4 ECC Unbuffered SODIMM
• System ram type: ddr4_sdram
• Memory storage capacity: 8.0

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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