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A memory upgrade is one of the fastest, easiest, and most affordable ways to immediately improve the performance of your computer. If your PC laptop, desktop, workstation, or Mac system is running slowly, installing more memory takes as little as five minutes and delivers immediate and lasting improvements. Speed up your system, increase responsiveness, multitask with ease, and extend the lifespan of your computer with a reliable desktop memory, laptop memory, or Mac memory upgrade. Learn more in our Memory Information Guide.

174 memory upgrades

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Image for Crucial 2GB DDR3L-1600 UDIMM from Crucial UK GBP Store Organization

Crucial 2GB DDR3L-1600 UDIMM

DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •

£13.19 inc. VAT*

Crucial 2GB DDR3L-1600 UDIMM

DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •

£13.19 inc. VAT*

Crucial 1GB DDR2-667 UDIMM

DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 128MEG X 64 •

£15.59 inc. VAT*
Image for Crucial 1GB DDR2-800 UDIMM from Crucial UK GBP Store Organization

Crucial 1GB DDR2-800 UDIMM

DDR2 PC2-6400 • CL=6 • UNBUFFERED • NON-ECC • DDR2-800 • 1.8V • 128MEG X 64 •

£15.59 inc. VAT*

Crucial 4GB DDR4-2400 UDIMM

DDR4 PC4-19200 • CL=17 • SINGLE RANKED • X8 BASED • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 512MEG X 64 •

£19.19 inc. VAT*

Crucial 4GB DDR4-2666 UDIMM

DDR4 PC4-21300 • CL=19 • SINGLE RANKED • X8 BASED • UNBUFFERED • NON-ECC • DDR4-2666 • 1.2V • 512MEG X 64 •

£19.19 inc. VAT*

Ballistix Sport LT Gray 4GB DDR4-2400 UDIMM

DDR4 PC4-19200 • 16-16-16 • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*

Ballistix Sport LT White 4GB DDR4-2400 UDIMM

DDR4 PC4-19200 • 16-16-16 • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*
Image for Ballistix Sport LT Red 4GB DDR4-2400 UDIMM from Crucial UK GBP Store Organization

Ballistix Sport LT Red 4GB DDR4-2400 UDIMM

DDR4 PC4-19200 • 16-16-16 • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*
Image for Ballistix Sport LT Gray 4GB DDR4-2666 UDIMM from Crucial UK GBP Store Organization

Ballistix Sport LT Gray 4GB DDR4-2666 UDIMM

DDR4 PC4-21300 • 16-18-18 • UNBUFFERED • NON-ECC • DDR4-2666 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*

Ballistix Sport LT White 4GB DDR4-2666 UDIMM

DDR4 PC4-21300 • 16-18-18 • UNBUFFERED • NON-ECC • DDR4-2666 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*
Image for Ballistix Sport LT Red 4GB DDR4-2666 UDIMM from Crucial UK GBP Store Organization

Ballistix Sport LT Red 4GB DDR4-2666 UDIMM

DDR4 PC4-21300 • 16-18-18 • UNBUFFERED • NON-ECC • DDR4-2666 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*
New

Crucial 4GB DDR4-3200 UDIMM

DDR4 PC4-25600 • CL=22 • SINGLE RANKED • X16 BASED • UNBUFFERED • NON-ECC • DDR4-3200 • 1.2V • 512MEG X 64 •

£20.39 inc. VAT*
Image for Crucial 4GB DDR3L-1600 UDIMM from Crucial UK GBP Store Organization

Crucial 4GB DDR3L-1600 UDIMM

DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 512MEG X 64 •

£23.99 inc. VAT*

Crucial 4GB DDR3L-1866 UDIMM

DDR3 PC3-14900 • CL=13 • UNBUFFERED • NON-ECC • DDR3-1866 • 1.35V • 512MEG X 64 •

£23.99 inc. VAT*
Image for Crucial 4GB Kit (2 x 2GB) DDR3L-1600 UDIMM from Crucial UK GBP Store Organization

Crucial 4GB Kit (2 x 2GB) DDR3L-1600 UDIMM

DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •

£25.19 inc. VAT*

Crucial 4GB Kit (2 x 2GB) DDR3L-1600 UDIMM

DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •

£25.19 inc. VAT*

Crucial 2GB DDR2-666 UDIMM

DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 256MEG X 64 •

£27.59 inc. VAT*

Crucial 2GB DDR2-800 UDIMM

DDR2 PC2-6400 • CL=6 • UNBUFFERED • NON-ECC • DDR2-800 • 1.8V • 256MEG X 64 •

£27.59 inc. VAT*

Crucial 1GB DDR-400 UDIMM

DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 128MEG X 64 •

£28.79 inc. VAT*

Crucial 2GB Kit (2 x 1GB) DDR2-666 UDIMM

DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 128MEG X 64 •

£29.99 inc. VAT*

Crucial 2GB Kit (2 x 1GB) DDR2-800 UDIMM

DDR2 PC2-6400 • CL=6 • UNBUFFERED • NON-ECC • DDR2-800 • 1.8V • 128MEG X 64 •

£29.99 inc. VAT*

Crucial 8GB DDR4-2400 UDIMM

DDR4 PC4-19200 • CL=17 • DUAL RANKED • X8 BASED • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 1024MEG X 64 •

£34.79 inc. VAT*

Crucial 8GB DDR4-2400 UDIMM

DDR4 PC4-19200 • CL=17 • SINGLE RANKED • X8 BASED • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 1024MEG X 64 •

£34.79 inc. VAT*

Ballistix Sport LT Gray 8GB DDR4-2400 UDIMM

DDR4 PC4-19200 • 16-16-16 • UNBUFFERED • NON-ECC • DDR4-2400 • 1.2V • 1024MEG X 64 •

£34.79 inc. VAT*