Skip to main content
  • In Stock
  • Sold by Newegg
  • New
  • Combo Deals Only
Brands
Show More
Price
Show More
Speed
Capacity
Show More
BIOS/Performance Profile
CAS Latency
Multi-channel Kit
Recommend Use
Show More
Voltage
Show More
ECC
Sold by
Type
Color
LED Color
All Top Brands
Availability
Condition
Total Capacity
Current Promotion
Useful Links
Customer Ratings
  • Featured Brands

    See Deals from CrucialSee Deals from G.SKILL
Sort By:
View:
8GB 4X70R38787 DDR4 2666 Udimm PC4-21300 RAM Replacement Memory for Lenovo
Quick View
8GB 4X70R38787 DDR4 2666 Udimm PC4-21300 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE8GB2666DTr1b8-MGSpecific1aMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
16GB RAM-16GDR4-LD-2133 DDR4-2133 PC4-17000 288-Pin UDIMM RAM Replacement Memory for Lenovo
Quick View
16GB RAM-16GDR4-LD-2133 DDR4-2133 PC4-17000 288-Pin UDIMM RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: QN16GB2133DTr2b8-TZSpecificMPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
8GB 4X70K09921 DDR4 2400 Udimm PC4-19200 RAM Replacement Memory for Lenovo
Quick View
8GB 4X70K09921 DDR4 2400 Udimm PC4-19200 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE8GB2400DTr1b8-MGSpecificaMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB 4ZC7A08701 DDR4 2666 Udimm PC4-21300 RAM Replacement Memory for Lenovo
Quick View
8GB 4ZC7A08701 DDR4 2666 Udimm PC4-21300 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE8GB2666DTr1b8-MGSpecificaMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
16GB 4X70G88314 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
Quick View
16GB 4X70G88314 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE16GB2133DTr2b8-MGSpecific1aMPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
8GB 3TK87AA 3TK87AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
Quick View
8GB 3TK87AA 3TK87AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2666DTr1b8-MGSpecific2MPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB SNPM0VW4C/8G A9321911 288-Pin DDR4 UDIMM 2400MHz RAM Replacement Memory for Dell
Quick View
8GB SNPM0VW4C/8G A9321911 288-Pin DDR4 UDIMM 2400MHz RAM Replacement Memory for Dell
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: D8GB2400DTr1b8-MGSpecificMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB P1N52AA P1N52AT 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
8GB P1N52AA P1N52AT 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2133DTr1b8-MGSpecific1MPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
8GB 3PL81AA 3PL81AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
Quick View
8GB 3PL81AA 3PL81AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2666DTr1b8-MGSpecific1MPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB Z9H60AT 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
8GB Z9H60AT 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2400DTr1b8-MGSpecific5MPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB 854913-001 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
8GB 854913-001 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2400DTr1b8-MGSpecific7MPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB Z9H60AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
8GB Z9H60AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2400DTr1b8-MGSpecific6MPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB SNPFN6XKC/8G A8058238 288-Pin DDR4 UDIMM RAM Replacement Memory for Dell
Quick View
8GB SNPFN6XKC/8G A8058238 288-Pin DDR4 UDIMM RAM Replacement Memory for Dell
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: D8GB2133DTr2b8-MGSpecificMPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
8GB T0E51AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
8GB T0E51AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP8GB2133DTr1b8-MGSpecific2MPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
16GB 4X71D07932 288-Pin DDR4-3200 PC4-25600 Udimm RAM Replacement Memory for Lenovo
Quick View
16GB 4X71D07932 288-Pin DDR4-3200 PC4-25600 Udimm RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE16GB3200DTr2b8-TZSpecific02MPN/NE
  •  
  • $197.96 
  • $9.99 Shipping
16GB 4X70K09922 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
Quick View
16GB 4X70K09922 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE16GB2133DTr2b8-MGSpecificaMPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
16GB 141H3AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
Quick View
16GB 141H3AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP16GB3200DTr2b8-MGSpecific2MPN/NE
  •  
  • $197.96 
  • $9.99 Shipping
16GB 13L74AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
Quick View
16GB 13L74AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP16GB3200DTr2b8-MGSpecific1MPN/NE
  •  
  • $197.96 
  • $9.99 Shipping
Patriot Signature 1GB DDR2 533 (PC2 4200) Desktop Memory Model PSD21G5332
Quick View
Patriot Signature 1GB DDR2 533 (PC2 4200) Desktop Memory Model PSD21G5332
  • CAS Latency: CL4
  • Voltage: 1.80V
  • Parts: Lifetime limited
  • Labor: Lifetime limited
  • Model #: PSD21G5332
  •  
  • $62.62 
  • $39.99 Shipping
16GB Y3X96AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
16GB Y3X96AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP16GB2133DTr2b8-MGSpecific1MPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
16GB T0E52AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
Quick View
16GB T0E52AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: HP16GB2133DTr2b8-MGSpecific2MPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
16GB SNPV51K2C/16G 288-Pin DDR4 UDIMM 2133MHz RAM Replacement Memory for Dell
Quick View
16GB SNPV51K2C/16G 288-Pin DDR4 UDIMM 2133MHz RAM Replacement Memory for Dell
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: D16GB2133DTr2b8-MGSpecificMPN/NE
  •  
  • $165.70 
  • $9.99 Shipping
ADATA RAM XPG Lancer Blade RGB DDR5 U-DIMM 16GB 6000MHz AX5U6000C4816G-SLABRWH
Quick View
  •  
  • $540.90 
  • Free Shipping
ADATA XPG Lancer RGB Black 32GB DDR5 6000MHz CL30 Single stick Memory RAM U-DIMM AX5U6000C3032G-CLARBK
Quick View
  •  
  • $1,167.90 
  • Free Shipping
Adata XPG Lancer Blade RGB DDR5 16GB U-DIMM 6400MHz AX5U6400C3216G-SLABRBK
Quick View
Adata XPG Lancer Blade RGB DDR5 16GB U-DIMM 6400MHz AX5U6400C3216G-SLABRBK
  • Capacity: 16GB
  • Speed: 6400MHz
  • Model #: 1.AX5U6400C3216G-SLABRBK
  •  
  • $599.90 
  • Free Shipping
2GB 240p PC3-12800 CL11 8c 256x8 DDR3-1600 1Rx8 1.5V UDIMM - CXC
Quick View
  •  
  • $9.91 
  • Free Shipping
ADATA RAM XPG Lancer Neon RGB DDR5 U-DIMM 16GB 6000MHz AX5U6000C3016G-CLANRSG
Quick View
  •  
  • $608.90 
  • Free Shipping
Kingston 1GB KWK007-ELC PC2-5300 (DDR2-667) DDR2 SDRAM 240 Pin Non-ECC Memory
Quick View
  •  
  • $21.63 
  • $39.99 Shipping
MEM DIMM 512MB PC2-5300U NON-ECC
Quick View
SAMSUNG
MEM DIMM 512MB PC2-5300U NON-ECC
  • Model #: M378T6553CZ3-CE6
  •  
  • $59.20 
  • $39.99 Shipping
Samsung - 512MB DIMM - 1Rx8 PC2-3200U
Quick View
SAMSUNG
Samsung - 512MB DIMM - 1Rx8 PC2-3200U
  • Model #: M378T6553BZ0-KCC
  •  
  • $22.77 
  • $39.99 Shipping
Micron MT16JTF1G64AZ-1G6D1 8GB Desktop DIMM DDR3 PC-12800(1600)
Quick View
Micron MT16JTF1G64AZ-1G6D1 8GB Desktop DIMM DDR3 PC-12800(1600)
  • Voltage: Regular Voltage
  • Type: 240-Pin DDR3 SDRAM
  • Rank: 2Rx8
  • Model #: MT16JTF1G64AZ-1G6D1
SAMSUNG 4G 288Pin DDR4 SDRAM 1Rx8 DDR4 2133 (PC4 17000) Desktop Ram Memory
Quick View
  •  
  • $50.79 
  • $9.99 Shipping
Rimlance 16GB (1X16GB) 1.2V DDR4 3200MHZ PC4-25600 UDIMM 2RX8
Quick View
Rimlance 16GB (1X16GB) 1.2V DDR4 3200MHZ PC4-25600 UDIMM 2RX8
  • CAS Latency: CL22
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Model #: RUD25600D8C16
  •  
  • $139.99 
  • Free Shipping
HPE 462974-001 Battery Backed Write Cache
Quick View
HP
HPE 462974-001 Battery Backed Write Cache
  • Parts: 90 day warranty
  • Model #: 462974-001
  •  
  • $28.46 
  • $39.99 Shipping
Hynix Memory HMA82GU6MFR8N-TF 16GB DDR4-2133 2Rx8 Non-ECC UDIMM 288PIN
Quick View
  •  
  • $165.70 
  • $9.99 Shipping
ADATA XPG Lancer Customizable RGB DDR5 32GB UDIMM AX5U6000C3032G-CLARWH 6000MHz
Quick View
  •  
  • $1,121.90 
  • Free Shipping

Desktop Memory

System memory is where a computer holds the programs and data that are currently in use. The definition of the word "memory" has become somewhat blurred over the years because there are different types of memory that a computer uses. In general, "memory" refers to the system memory, or RAM, which holds instructions that the processor uses, and the data the instructions work with.

System memory is directly related to the performance of your computer. In some ways, it's even more important than the processor, because without enough memory, your processor cannot work to its full potential. Newer programs require more memory than older ones, so when buying a new computer, get the most memory that you can afford.

Learn about Types of System Memory

There are many different types of system memory available. Researching them will help you make an informed choice when you purchase your computer. Getting the right kind of memory for your system will also affect whether you can upgrade it later on, and by how much. With the right memory, you can move it from one system to another, or continue to use the same memory even after you upgrade your motherboard.

Types of memory include 168-pin SDRAM, 184-pin DDR SDRAM, 240-pin DDR2 SDRAM, and 240-pin DDR3 SDRAM. Capacity typically ranges from 128MB to 2GB with speeds covering PC 100, PC 133, PC 2100, PC 2700, PC 3200, PC 4000, PC2 3200, PC2 4200, PC2 5300, PC2 5400, PC2 6400, PC2 8000, PC2 8500, PC2 8800, PC2 8888, PC2 9136, PC2 9200, PC2 9600, PC2 10000, PC2 10400, PC3 8500, PC3 10600, PC3 10666, PC3 10700, PC3 12800, PC3 13000, PC3 14400, PC3 15000, and so on.

Bestselling Desktop Memory Reviews:

Sean P.
7/18/2026 11:05:08 AM
Nice and Colorful

“ This memory is great for my use case. ”

Team T-Force Delta RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model TF3D432G3200HC16FDC01
Anonymous
7/2/2026 7:37:22 AM
Consistent reliable memory

“ Solid, no-frills RAM that just works. ”

Team T-FORCE VULCAN Z 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model TLZGD416G3200HC16CDC01
MICHAEL G.
7/1/2026 9:44:35 AM
Pricey, even for old RAM, but works.

“ Okay ram. ”

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GVKB
Brian
6/19/2026 12:22:46 PM
Man, did I get lucky.

“ Got this last April, just before DDR4 prices also went through the roof. ”

G.SKILL Ripjaws V Series 64GB (4 x 16GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16Q-64GVK
Joel H.
6/18/2026 10:15:33 AM
The RAM is too dang high!

“ It's DDR5 and works fine ”

CORSAIR Vengeance RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6000 (PC5 48000) Desktop Memory Model CMH32GX5M2B6000C38