Crucial CT16G4RFD4266 16 GB DDR4 2666 MT/s (PC4-21300) CL19 DR x 4 ECC Registered DIMM 288-Pin Memory

£152.23 £9.51/GB

13% dearer per GB than the average 16GB DDR4 kit we track.

▼ 16% below 90-day median Server DDR4 ECC Buffered

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Specification

Price history

Typical price (median) 90-day £180.27 12-month £183.93 12-month low £114.32 All-time low £42.92 (2024-10-09)

Genuine drop Today’s price is 17% below this kit’s typical price for the past year, and it has been cheaper than this for 22% of that year (last on 28 Nov 2025). Why medians, not averages ›

30-day avg £154.2590-day avg £177.40180-day avg £201.92 (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
	£4.75best £/GB	£75.94	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📈-
	£5.18	£82.95	16GB	Integral	Mac	DDR4	DIMM 2400MHz	-	Integral 16GB DDR4 RAM 2400MHz PC4-19200 DIMM Desktop/Computer Memory ModuleBuy📈-
	£5.25	£83.99	16GB	Timetec	Desktop	DDR4	DIMM 2133MHz	Non-ECCUnbuffered	Timetec 16GB DDR4 2133MHz (PC4-2133P) PC4-17000 UDIMM Desktop RAM – 288-Pin 1.2V CL15 Non-ECC Unbuffered DIMM Memory Module UpgradeBuy📈-
	£5.31	£84.99	16GB	Timetec	Desktop	DDR4	DIMM 2400MHz	Non-ECCUnbuffered	Timetec 16GB DDR4 2400MHz (PC4-2400T) PC4-19200 UDIMM Desktop RAM – 288-Pin 1.2V CL17 Non-ECC Unbuffered DIMM Memory Module UpgradeBuy📈-
	£5.31	£84.99	16GB	Timetec	Desktop	DDR4	DIMM 2666MHz	Non-ECCUnbuffered	Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 UDIMM Desktop RAM – 288-Pin 1.2V CL19 Non-ECC Unbuffered DIMM Memory Module UpgradeBuy📈-
	£5.31	£84.99▼ 11%	16GB (2x8GB)	Integral	Mac	DDR4	DIMM 2400MHz	-	Integral 16GB (2X 8GB) DDR4 RAM 2400MHz PC4-19200 DIMM Desktop/Computer Memory Module KitBuy📈-

About this kit

• Process data at speeds up to 2933 MT/s
• 100 percent component and module tested to mission-critical server standards
• Optimised for the latest Intel Xeon processor product families
• Compatible with OEM servers and warranties
• Backed by the Reliance program

Product Description Buying new servers is expensive. Getting more out of your current infrastructure isn’t. By maximising a server’s installed memory capacity with Crucial RDIMMs, you can quickly and affordably make your network faster and more efficient. Get more out of your IT budget with Crucial RDIMMs, which speed up server applications and allow you to run more virtual machines, all while increasing overall system reliability with ECC parity. Designed for leading platforms, compatible with OEM systems and warranties, Crucial RDIMMs make it easy to maximize server deployments by maximising memory capacity. Manufacturer's Description MK1U8 Box Contains Crucial CT16G4RFD4266 16GB DDR4-2666 RDIMM

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