RAM PC Memory (22 products)

If you're looking for new RAM, take a look at the wide range of memory we have available. With sizes and speeds available to suit every need and budget, you can be sure to find RAM to improve your build and ensure applications run quickly and smoothly.

Read more about RAM PC Memory

Showing 22 results
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  • 1

Crucial CT4G4DFS6266 4GB DDR4 2666 MHz 288-Pin SR x16 UDIMM

  • 4GB Capacity
  • 2666 MHz Clock Speed
  • PC4-21300
  • 288-Pin UDIMM

£ 18.99  inc. vat

£ 15.82 ex. vat

More Info

Crucial RAM CT8G4DFRA266 8GB DDR4 2666 MHz CL19 Desktop Memory

  • 8GB
  • 2666Mhz DDR4
  • PC Speed = PC4-21300
  • 288 Pin

£ 23.99  inc. vat

£38.31save £14.32

£ 19.99 ex. vat

£31.92save £11.93
More Info

Lexar 16GB DDR4 2666 MT/s UDIMM 288pin

  • Improve your computer’s performance
  • High speed DDR4 memory
  • DDR4 2666 266-Pin
  • Easy to install

£ 44.98  inc. vat

£68.56save £23.58

£ 37.48 ex. vat

£57.13save £19.65
More Info

CORSAIR VENGEANCE LPX 16GB (2x8GB) DDR4 4000 (PC4-32000) C19 Desktop Memory - Black

  • Density: 16GB (2x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

£ 99.68  inc. vat

£124.23save £24.55

£ 83.06 ex. vat

£103.52save £20.46

0% Interest offers available

More Info

Patriot Viper Steel Series DDR4 16GB (2 x 8GB) 4000MHz Memory Kit

  • Gunmetal grey sides with Diamond-Cutting Viper logo
  • Aluminium heat spreader with unique design
  • Tested on the latest Intel platforms and i7 processors

£ 86.01  inc. vat

£106.26save £20.25

£ 71.67 ex. vat

£88.55save £16.88
More Info

Integral 16GB Kit (2 x 8GB) DDR4 2666MHz PC4-21300 1.2V CL19 UDIMM

  • 16GB (2x8GB)
  • DDR4 2666Mhz
  • PC4-21300
  • 288 pin DIMM

£ 72.74  inc. vat

£ 60.61 ex. vat

More Info

Thermaltake TOUGHRAM XG RGB 16GB (2x8GB) DDR4 4000MHz C19 Memory

  • 16GB (2x8GB)
  • DDR4 4000MHz
  • 16.8m colors with a nearly endless lighting effect
  • Support NeonMaker Light Editing Software

£ 141.99  inc. vat

£ 118.32 ex. vat

0% Interest offers available

More Info

Adata Premier 4GB DDR4 2666 UDIMM Memory

  • Capacity: (1 x 4GB)
  • Form Factor: UDIMM
  • Speed: 2666 MHz
  • Lifetime Warranty

£ 22.65  inc. vat

£ 18.87 ex. vat

More Info

Kingston 8GB DDR4 2666Mhz Non ECC Memory RAM

  • Voltage: 1.2V
  • Latency Timing: CL19
  • Speed: 2666MHz (PC4-21300)
  • non-ECC Unbuffered Memory
  • KCP426NS8/8

£ 32.21  inc. vat

£41.49save £9.28

£ 26.84 ex. vat

£34.57save £7.73
More Info

Crucial CT16G4DFRA266 16GB (DDR4, 2666 MT/s, PC4-21300, DIMM, 288-Pin) Memory

  • 16 GB
  • 2666Mhz
  • PC4-21300
  • DIMM, 288-Pin

£ 52.35  inc. vat

£61.56save £9.21

£ 43.62 ex. vat

£51.30save £7.68
More Info

Crucial CT4G4DFS8266 4GB DDR4 2666 UDIMM

  • 4GB DDR4 2666 MT/S PC4-21300 CL19 SR X8 UDIMM 288PIN
  • Limited lifetime warranty

£ 21.92  inc. vat

£ 18.26 ex. vat

More Info

Kingston Value RAM 16GB 2666MHz DDR4 DIMM Memory Module

  • Capacity: 16GB
  • Speed: 2666MHz
  • Factor: DIMM
  • Latency: CL19

£ 57.48  inc. vat

£75.98save £18.50

£ 47.90 ex. vat

£63.31save £15.41
More Info

Viper Steel Series DDR4 16GB (2 x 8GB) 4400MHz Performance Memory Kit - PVS416G440C9K

  • Capacity: 16GB (2 x 8GB)DDR4
  • Base Frequency: PC4-17000 (2133MHz); Up to PC4-35200 (4400MHz) with...
  • Base Timings: 15-15-15-36; Overclock timing with XMP 2.0 enabled...

£ 91.98  inc. vat

£118.37save £26.39

£ 76.65 ex. vat

£98.64save £21.99
More Info

CORSAIR VENGEANCE RGB PRO 16GB (2x8GB) DDR4 4000 (PC4-32000) C19 Desktop memory - Black

  • Density: 16GB (2x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

£ 117.50  inc. vat

£134.98save £17.48

£ 97.91 ex. vat

£112.48save £14.57

0% Interest offers available

More Info

CORSAIR VENGEANCE® LPX 32GB (4 x 8GB) DDR4 DRAM 4000MHz C19 Memory Kit - Black

  • Density: 32GB (4x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

£ 213.20  inc. vat

£251.48save £38.28

£ 177.66 ex. vat

£209.56save £31.90

0% Interest offers available

More Info

Kingston 16GB DDR4 2666Mhz Non ECC Memory RAM

  • DDR4
  • 16GB
  • 2666MHz
  • Lifetime Warranty

£ 65.99  inc. vat

£ 54.99 ex. vat

More Info

Kingston Value RAM 8GB 2666MHz DDR4 Non-ECC CL19 Memory

  • DDR4
  • 8 GB
  • DIMM 288-pin
  • 2666 MHz (PC4-21300)

£ 30.99  inc. vat

£39.99save £9.00

£ 25.82 ex. vat

£33.32save £7.50
More Info

Crucial 8GB DDR4-2666 RDIMM

  • Process data at speeds up to 2933 MT/s
  • 100% component and module tested to mission-critical server...
  • Optimized for the latest Intel Xeon processor product families...

£ 76.98  inc. vat

£ 64.15 ex. vat

More Info

Crucial Ballistix MAX RGB 16GB Kit (2 x 8GB) DDR4-4400 Desktop Gaming Memory (Black)

  • 16GB (8GBx2)
  • 4400MHz DDR4
  • Extended timings - 19-19-19-46
  • Limited Lifetime Warranty

£ 214.98  inc. vat

£ 179.15 ex. vat

0% Interest offers available

More Info

CORSAIR VENGEANCE RGB PRO 32GB (4x8GB) DDR4 4000 (PC4-32000) C19 Desktop memory - Black

  • Density: 32GB (4x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

£ 229.98  inc. vat

£274.98save £45.00

£ 191.65 ex. vat

£229.15save £37.50

0% Interest offers available

More Info

Kingston Valueram 4GB (1X 4GB) DDR4 2666MHZ RAM

  • Voltage: 1.2V
  • Latency Timing: C19
  • Speed: 2666MHz (PC4-21300)
  • 1 x 4GB DIMM Memory

£ 20.49  inc. vat

£22.41save £1.92

£ 17.07 ex. vat

£18.67save £1.60
More Info

Kingston DDR4 - 4 GB - DIMM 288-pin

  • Memory Size: 4 GB
  • Memory Technology: DDR4 SDRAM
  • Memory Speed: 2666 MHz
  • Memory Standard: DDR4-2666/PC4-21300
  • Device Supported: Desktop PC

£ 20.99  inc. vat

£ 17.49 ex. vat

More Info

Crucial CT4G4DFS6266 4GB DDR4 2666 MHz 288-Pin SR x16 UDIMM

  • 4GB Capacity
  • 2666 MHz Clock Speed
  • PC4-21300
  • 288-Pin UDIMM

QuickFind: 899626

Mfr part code: CT4G4DFS6266

£ 18.99  inc. vat

£ 15.82 ex. vat

More Info

Crucial RAM CT8G4DFRA266 8GB DDR4 2666 MHz CL19 Desktop Memory

  • 8GB
  • 2666Mhz DDR4
  • PC Speed = PC4-21300
  • 288 Pin

QuickFind: 1128689

Mfr part code: CT8G4DFRA266

£ 23.99  inc. vat

£38.31save £14.32

£ 19.99 ex. vat

£31.92save £11.93
More Info

Lexar 16GB DDR4 2666 MT/s UDIMM 288pin

  • Improve your computer’s performance
  • High speed DDR4 memory
  • DDR4 2666 266-Pin
  • Easy to install

QuickFind: 1126765

Mfr part code: LD4AU016G-R2666G

£ 44.98  inc. vat

£68.56save £23.58

£ 37.48 ex. vat

£57.13save £19.65
More Info

CORSAIR VENGEANCE LPX 16GB (2x8GB) DDR4 4000 (PC4-32000) C19 Desktop Memory - Black

  • Density: 16GB (2x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

QuickFind: 990254

Mfr part code: CMK16GX4M2K4000C19

£ 99.68  inc. vat

£124.23save £24.55

£ 83.06 ex. vat

£103.52save £20.46

0% Interest offers available

More Info

Patriot Viper Steel Series DDR4 16GB (2 x 8GB) 4000MHz Memory Kit

  • Gunmetal grey sides with Diamond-Cutting Viper logo
  • Aluminium heat spreader with unique design
  • Tested on the latest Intel platforms and i7 processors

QuickFind: 875837

Mfr part code: PVS416G400C9K

£ 86.01  inc. vat

£106.26save £20.25

£ 71.67 ex. vat

£88.55save £16.88
More Info

Integral 16GB Kit (2 x 8GB) DDR4 2666MHz PC4-21300 1.2V CL19 UDIMM

  • 16GB (2x8GB)
  • DDR4 2666Mhz
  • PC4-21300
  • 288 pin DIMM

QuickFind: 1143115

Mfr part code: IN4T8GNELSIK2

£ 72.74  inc. vat

£ 60.61 ex. vat

More Info

Thermaltake TOUGHRAM XG RGB 16GB (2x8GB) DDR4 4000MHz C19 Memory

  • 16GB (2x8GB)
  • DDR4 4000MHz
  • 16.8m colors with a nearly endless lighting effect
  • Support NeonMaker Light Editing Software

QuickFind: 1142735

Mfr part code: R016D408GX2-4000C19A

£ 141.99  inc. vat

£ 118.32 ex. vat

0% Interest offers available

More Info

Adata Premier 4GB DDR4 2666 UDIMM Memory

  • Capacity: (1 x 4GB)
  • Form Factor: UDIMM
  • Speed: 2666 MHz
  • Lifetime Warranty

QuickFind: 855247

Mfr part code: AD4U2666W4G19-S

£ 22.65  inc. vat

£ 18.87 ex. vat

More Info

Kingston 8GB DDR4 2666Mhz Non ECC Memory RAM

  • Voltage: 1.2V
  • Latency Timing: CL19
  • Speed: 2666MHz (PC4-21300)
  • non-ECC Unbuffered Memory
  • KCP426NS8/8

QuickFind: 823294

Mfr part code: KCP426NS8/8

£ 32.21  inc. vat

£41.49save £9.28

£ 26.84 ex. vat

£34.57save £7.73
More Info

Crucial CT16G4DFRA266 16GB (DDR4, 2666 MT/s, PC4-21300, DIMM, 288-Pin) Memory

  • 16 GB
  • 2666Mhz
  • PC4-21300
  • DIMM, 288-Pin

QuickFind: 1128219

Mfr part code: CT16G4DFRA266

£ 52.35  inc. vat

£61.56save £9.21

£ 43.62 ex. vat

£51.30save £7.68
More Info

Crucial CT4G4DFS8266 4GB DDR4 2666 UDIMM

  • 4GB DDR4 2666 MT/S PC4-21300 CL19 SR X8 UDIMM 288PIN
  • Limited lifetime warranty

QuickFind: 882333

Mfr part code: CT4G4DFS8266

£ 21.92  inc. vat

£ 18.26 ex. vat

More Info

Kingston Value RAM 16GB 2666MHz DDR4 DIMM Memory Module

  • Capacity: 16GB
  • Speed: 2666MHz
  • Factor: DIMM
  • Latency: CL19

QuickFind: 797215

Mfr part code: KVR26N19D8/16

£ 57.48  inc. vat

£75.98save £18.50

£ 47.90 ex. vat

£63.31save £15.41
More Info

Viper Steel Series DDR4 16GB (2 x 8GB) 4400MHz Performance Memory Kit - PVS416G440C9K

  • Capacity: 16GB (2 x 8GB)DDR4
  • Base Frequency: PC4-17000 (2133MHz); Up to PC4-35200 (4400MHz) with...
  • Base Timings: 15-15-15-36; Overclock timing with XMP 2.0 enabled...

QuickFind: 900763

Mfr part code: PVS416G440C9K

£ 91.98  inc. vat

£118.37save £26.39

£ 76.65 ex. vat

£98.64save £21.99
More Info

CORSAIR VENGEANCE RGB PRO 16GB (2x8GB) DDR4 4000 (PC4-32000) C19 Desktop memory - Black

  • Density: 16GB (2x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

QuickFind: 990269

Mfr part code: CMW16GX4M2K4000C19

£ 117.50  inc. vat

£134.98save £17.48

£ 97.91 ex. vat

£112.48save £14.57

0% Interest offers available

More Info

CORSAIR VENGEANCE® LPX 32GB (4 x 8GB) DDR4 DRAM 4000MHz C19 Memory Kit - Black

  • Density: 32GB (4x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

QuickFind: 990266

Mfr part code: CMK32GX4M4K4000C19

£ 213.20  inc. vat

£251.48save £38.28

£ 177.66 ex. vat

£209.56save £31.90

0% Interest offers available

More Info

Kingston 16GB DDR4 2666Mhz Non ECC Memory RAM

  • DDR4
  • 16GB
  • 2666MHz
  • Lifetime Warranty

QuickFind: 823293

Mfr part code: KCP426ND8/16

£ 65.99  inc. vat

£ 54.99 ex. vat

More Info

Kingston Value RAM 8GB 2666MHz DDR4 Non-ECC CL19 Memory

  • DDR4
  • 8 GB
  • DIMM 288-pin
  • 2666 MHz (PC4-21300)

QuickFind: 797220

Mfr part code: KVR26N19S8/8

£ 30.99  inc. vat

£39.99save £9.00

£ 25.82 ex. vat

£33.32save £7.50
More Info

Crucial 8GB DDR4-2666 RDIMM

  • Process data at speeds up to 2933 MT/s
  • 100% component and module tested to mission-critical server...
  • Optimized for the latest Intel Xeon processor product families...

QuickFind: 769556

Mfr part code: CT8G4RFD8266

£ 76.98  inc. vat

£ 64.15 ex. vat

More Info

Crucial Ballistix MAX RGB 16GB Kit (2 x 8GB) DDR4-4400 Desktop Gaming Memory (Black)

  • 16GB (8GBx2)
  • 4400MHz DDR4
  • Extended timings - 19-19-19-46
  • Limited Lifetime Warranty

QuickFind: 1143954

Mfr part code: BLM2K8G44C19U4BL

£ 214.98  inc. vat

£ 179.15 ex. vat

0% Interest offers available

More Info

CORSAIR VENGEANCE RGB PRO 32GB (4x8GB) DDR4 4000 (PC4-32000) C19 Desktop memory - Black

  • Density: 32GB (4x8GB)
  • Speed: 4000MHz
  • Tested Latency: 19-23-23-45
  • Intel XMP 2.0

QuickFind: 990272

Mfr part code: CMW32GX4M4K4000C19

£ 229.98  inc. vat

£274.98save £45.00

£ 191.65 ex. vat

£229.15save £37.50

0% Interest offers available

More Info

Kingston Valueram 4GB (1X 4GB) DDR4 2666MHZ RAM

  • Voltage: 1.2V
  • Latency Timing: C19
  • Speed: 2666MHz (PC4-21300)
  • 1 x 4GB DIMM Memory

QuickFind: 963872

Mfr part code: KVR26N19S6/4

£ 20.49  inc. vat

£22.41save £1.92

£ 17.07 ex. vat

£18.67save £1.60
More Info

Kingston DDR4 - 4 GB - DIMM 288-pin

  • Memory Size: 4 GB
  • Memory Technology: DDR4 SDRAM
  • Memory Speed: 2666 MHz
  • Memory Standard: DDR4-2666/PC4-21300
  • Device Supported: Desktop PC

QuickFind: 909515

Mfr part code: KCP426NS6/4

£ 20.99  inc. vat

£ 17.49 ex. vat

More Info
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Desktop PC memory stores the programmes and applications that are running on a computer, including the operating system. Referred to as RAM (Random Access Memory), it's installed in the PC as modules typically in banks of 4 or 8GB. Generally speaking, the more memory a computer has, the more easily it can cope with multitasking.

Shopping for PC Memory?

When shopping for new RAM it's important to remember that size isn't everything. More RAM will allow you to multi-task or use larger applications more easily, however RAM is also graded on speed. Higher DDR certifications typically run more quickly, with the exact speed measured in MHz. It's important to check you're buying RAM that is compatible with your build. The DDR version used of your new RAM must match the version supported by your motherboard, otherwise you won't be able to install it. Your motherboard will also have a maximum amount of RAM supported - double check you have enough free slots before buying an extra stick of RAM.

What is DDR4 memory?

DDR4 RAM is the latest generation of Double Data Rate memory. That means that DDR4 RAM runs at higher speeds than older generations - but the capacity is still the most important factor when it comes to your memory needs. DDR4 RAM improves the 'clock speed' from the previous generation, which is the speed at which it can read and write data.

If you need to get a little more performance out of your gaming PC, upgrading to DDR4 RAM (as long as your machine is compatible!) might be a good way to go about it, compared to the high costs of a new graphics card or processor.

What is RAM in a computer?

RAM stands for Random Access Memory, a form of volatile memory that stores information temporarily. It doesn't store files the way that your hard drive does - this memory can be retrieved from your system's RAM, which is much quicker than reading data from the hard drive. Once an application no longer requires this information, or once the system is shut down, this information is discarded and the RAM can be reused.

What does RAM do?

RAM is essentially a form of high-speed, short-term memory for your system - it temporarily stores all of the data it thinks your computer might need in that moment or the near future. This means when an application or user requires this data, the system can retrieve it more quickly. Modern operating systems often pre-cache applications and data in unused RAM to improve system responsiveness.

How much RAM do I need?

The more programs or processes you're running, the more RAM you need. So if you're just typing an essay in Microsoft Word, for example, a computer with low RAM might be able to handle that - but if you're simultaneously streaming music, browsing the internet with a few tabs open, watching a quick video clip on a news site, editing a document and running a sweep with antivirus software, your system needs more memory to handle all of those processes at once, and to let you multitask and switch between them.

Modern desktop PCs, laptops, tablets and even phones might have somewhere from 4GB up to 32GB of RAM. For reference, Windows 10 takes 2GB of RAM just to run, so you'll almost certainly need more. But it's still worth remembering that as much as having more RAM is better, at a certain point, adding more RAM to your PC won't make it go any faster.

8GB is fine for basic multitasking and casual users, and can handle a little bit of gaming, but if you want to use your PC or laptop for something a bit more intensive, you'll want to move up. 16GB of RAM is great for Windows and Mac users, and good for gaming, but serious gamers will want to be looking at 32GB upwards in order to get great performance without freezing or lagging. If you're a professional who needs to edit huge image files or video, then you might want to go even higher, past 64GB up to a whopping 128GB.

What is ROM and RAM in computer?

The essential difference between ROM and RAM is their core purpose - RAM is intended for temporary storage in order to speed up computing processes, and therefore needs power to retain information.

ROM, including hard drives and SSDs, is non-volatile, meaning these formats store data over the long-term. Read Only Memory is necessary for storing important files, programs, and the operating system when they are not in use, so that these can be restored at a later date.