Crucial RAM CT4G4SFS824A 4GB DDR4 2400MHz CL17 Laptop Memory

£33.50 £8.38/GB

18% cheaper per GB than the average 4GB DDR4 kit we track.

▼ 13% below 90-day median Laptop DDR4 Non-ECC Unbuffered

★ 4.7/5 · 6,120 reviews on Amazon

Buy on Amazon.co.uk

Specification

Price history

Typical price (median) 90-day £38.64 12-month £40.00 12-month low £18.61 All-time low £1.71 (2019-03-27)

Genuine drop Today’s price is 16% below this kit’s typical price for the past year, and it has been cheaper than this for 36% of that year (last on 4 Sep 2026). Why medians, not averages ›

30-day avg £36.2190-day avg £40.80180-day avg £48.53 (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
	£6.38best £/GB	£25.51	4GB	Karmatech	Laptop	DDR4	SO-DIMM 3200MHz	Unbuffered	KARMATECH DDR4 SODIMM RAM (Refurbished) - 4GB/8GB/16GB/32GB - 2400/2666/3200 MHz (2666 MHz, Green, 4GB)Buy📈★☆☆☆☆1
	£6.66	£26.62	4GB	Karmatech	Laptop	DDR4	SO-DIMM 3200MHz	Unbuffered	KARMATECH DDR4 SODIMM RAM (Refurbished) - 4GB/8GB/16GB/32GB - 2400/2666/3200 MHz (2400 MHz, Green, 4GB)Buy📈-
	£7.50	£30.00	4GB	GLOBAL MEMORY	Laptop	DDR4	SO-DIMM 2133MHz	Unbuffered	4GB DDR4 2133MHz PC4-17000 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKSBuy📈★★★☆☆2
	£7.50	£30.00	4GB	GLOBAL MEMORY	Laptop	DDR4	SO-DIMM 2400MHz	Unbuffered	4GB DDR4 2400MHz PC4-19200 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKSBuy📈★★★★★1
	£7.50	£30.00	4GB	GLOBAL MEMORY	Mac	DDR4	SO-DIMM 2400MHz	Unbuffered	4GB DDR4 2400MHz PC4-19200 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH INTEL 27" RETINA 5K IMAC (2017)Buy📈★★★★★1
	£7.50	£30.00	4GB	GLOBAL MEMORY	Mac	DDR4	SO-DIMM 2666MHz	Unbuffered	4GB DDR4 2666MHz PC4-21300 260-PIN SODIMM MEMORY RAM COMPATIBLE WITH 27" RETINA 5K IMAC (2019/2020)Buy📈★★★★☆2

About this kit

• Improve your system's responsiveness, run apps faster and multitask with ease
• Install with ease; no computer skills required. How-to guides available at Crucial
• Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool
• Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise
• ECC Type=Non-ECC, Form Factor=SODIMM, Pin Count=260-pin, PC Speed=PC4-19200, Voltage=1.2V, Rank and Configuration=1Rx8

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