Patriot Signature Premium DDR4 16GB (1x16GB) 2666MHz (PC4-21300) UDIMM W/HEATSHIELD

£263.77 £16.49/GB

81% dearer per GB than the average 16GB DDR4 kit we track.

Desktop DDR4 Non-ECC Unbuffered

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Specification

Price history

Typical price (median) 90-day £189.31 12-month £111.59 12-month low £52.64 All-time low £30.14 (2024-12-29)

Dear for the market Today’s price is 136% above this kit’s typical price for the past year, and it has been cheaper than this for 77% of that year (last on 9 Jun 2026). At £16.49/GB it is dear against the £8.23/GB typical for DDR4 today. Why medians, not averages ›

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
	£4.37best £/GB	£69.90▼ 5%	16GB	Samsung	Server	DDR4	DIMM 2666MHz	ECC	Samsung M393A2K40BB2-CTD Memory Module (16 GB, 1 x 16 GB, DDR4, 2666 MHz, 288-pin DIMM)Buy📈-
	£4.57	£73.05	16GB (2x8GB)	Glowster	Desktop	DDR4	DIMM 3200MHz	-	DDR4 RAM Memory Module 16GB (2x8GB) 3200Mhz, Black, Ideal for Gaming and Performance Improvement in High Performance Computers.Buy📈-
	£5.31	£85.00	16GB	GLOBAL MEMORY	Desktop	DDR4	DIMM 2133MHz	-	16GB DDR4 2133MHz PC4-17000 288-PIN DIMM MEMORY RAM COMPATIBLE WITH PC DESKTOPS/MOTHERBOARDSBuy📈★★★★½9
	£5.31	£85.00	16GB	GLOBAL MEMORY	Desktop	DDR4	DIMM 2400MHz	-	16GB DDR4 2400MHz PC4-19200 288-PIN DIMM MEMORY RAM COMPATIBLE WITH PC DESKTOPS/MOTHERBOARDSBuy📈-
	£5.31	£85.00	16GB	GLOBAL MEMORY	Desktop	DDR4	DIMM 2933MHz	-	16GB DDR4 2933MHz PC4-23400 288-PIN DIMM MEMORY RAM COMPATIBLE WITH PC DESKTOPS/MOTHERBOARDSBuy📈★★★★★2
	£5.31	£85.00	16GB	GLOBAL MEMORY	Desktop	DDR4	DIMM 3200MHz	-	16GB DDR4 3200MHz PC4-25600 288-PIN DIMM MEMORY RAM COMPATIBLE WITH PC DESKTOPS/MOTHERBOARDSBuy📈★★★★★3

About this kit

• Capacity: 16GB (1 x 16GB) DDR4
• Frequency: 2666MHz (PC4-21300)
• (Two) 2 Rank Double-sided module
• Format: NON-ECC Unbuffered DIMM; Pin Out: 288-Pin
• Limited Lifetime Warranty

Patriot’s Signature Premium DDR4 Non-ECC unbuffered memory delivers the quality, reliability and performance expected for today’s mainstream computer needs. This 16GB UDIMM is designed to run at PC4-21300 (2666MHz) at CAS 19 latency timings for better overall system responsiveness when using demanding applications.

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