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RIMLANCE Ram 16GB DDR4-2666 (PC4-21300) 288-Pin desktop memory
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RIMLANCE Ram 16GB DDR4-2666 (PC4-21300) 288-Pin desktop memory
  • CAS Latency: CL19
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: Lifetime warranty
  • Model #: RLMUD-21300-16-28-0702
  •  
  • $125.99 
  • Free Shipping
RIMLANCE Ram 8GB DDR3-1866 (PC3L-14900)  240-Pin desktop memory
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RIMLANCE Ram 8GB DDR3-1866 (PC3L-14900) 240-Pin desktop memory
  • CAS Latency: CL13
  • Chipset: Major Brand Chipset
  • Recommend Use: High Performance or Gaming Memory
  • Buffered/Registered: Unbuffered
  • Model #: RLMUD-14900-8-28-0700
  •  
  • $33.43 
  • Free Shipping
SAMSUNG 1GB DDR3 1333 (PC3 10600) Desktop Memory Model M378B2873FHS-CH9
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SAMSUNG
Refurbished SAMSUNG 1GB DDR3 1333 (PC3 10600) Desktop Memory Model M378B2873FHS-CH9
  • CAS Latency: CL9
  • Voltage: 1.50V
  • Buffered/Registered: Unbuffered
  • Model #: M378B2873FHS-CH9
  •  
  • $17.25 
  • $39.99 Shipping
Lexar Memory LD4AU008G-B3200GSST 8GB 3200 MHz DDR4 U-DIMM - Desktop Memory
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  •  
  • $149.90 
  • Free Shipping
ADATA RAM XPG Lancer Blade RGB DDR5 U-DIMM 16GB 6000MHz AX5U6000C4816G-SLABRWH
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  •  
  • $540.90 
  • Free Shipping
Crucial Pro Overclock DIMM Ram 16GB DDR5 6400Mhz CL38 White CP16G64C38U5W
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  •  
  • $489.90 
  • Free Shipping
ADATA XPG Lancer RGB Black 32GB DDR5 6000MHz CL30 Single stick Memory RAM U-DIMM AX5U6000C3032G-CLARBK
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  •  
  • $1,167.90 
  • Free Shipping
G.Skill RAM DDR5 32GB 2x16GB 5200 CL40 Flare X5 EXPO/XMP 5200J4040A16GX2-FX5
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  •  
  • $878.90 
  • Free Shipping
ADATA XPG Lancer Customizable RGB DDR5 U-DIMM 32GB 6400MHz White Memory RAM AX5U6400C3232G-CLARWH
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  • $1,184.90 
  • Free Shipping
8GB RAM-8GDR4A1-UD-2400 DDR4-2400 PC4-19200 288-Pin UDIMM RAM Replacement Memory for QNAP
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8GB RAM-8GDR4A1-UD-2400 DDR4-2400 PC4-19200 288-Pin UDIMM RAM Replacement Memory for QNAP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: QN8GB2400DTA1r1b8-TZSpecificMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
G.Skill RAM DDR5 32GB 2x16GB 6000 Trident Z5 RGB Silver 6000J3040F16GX2-TZ5RS
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  • $1,182.90 
  • Free Shipping
8GB RAM-8GDR4A0-UD-2400 DDR4-2400 PC4-19200 288-Pin UDIMM RAM Replacement Memory for QNAP
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8GB RAM-8GDR4A0-UD-2400 DDR4-2400 PC4-19200 288-Pin UDIMM RAM Replacement Memory for QNAP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: QN8GB2400DTA0r1b8-TZSpecificMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB RAM-8GDR4-LD-2133 DDR4-2133 PC4-17000 288-Pin UDIMM RAM Replacement Memory for QNAP
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8GB RAM-8GDR4-LD-2133 DDR4-2133 PC4-17000 288-Pin UDIMM RAM Replacement Memory for QNAP
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: QN8GB2133DTr2b8-TZSpecificMPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
8GB 4X70G88313 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
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8GB 4X70G88313 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE8GB2133DTr2b8-MGSpecific1aMPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
8GB 4X70G88327 DDR4 2400 Udimm PC4-19200 RAM Replacement Memory for Lenovo
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8GB 4X70G88327 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-MGSpecific1aMPN/NE
  •  
  • $97.16 
  • $9.99 Shipping
8GB 4X70R38787 DDR4 2666 Udimm PC4-21300 RAM Replacement Memory for Lenovo
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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
8GB 4X70G88331 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
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8GB 4X70G88331 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unbuffered
  • Parts: 5 Years
  • Model #: LE8GB2133DTr2b8-MGSpecificaMPN/NE
  •  
  • $107.24 
  • $9.99 Shipping
16GB RAM-16GDR4-LD-2133 DDR4-2133 PC4-17000 288-Pin UDIMM RAM Replacement Memory for Lenovo
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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
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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
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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
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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
ADATA RAM XPG Lancer Neon RGB DDR5 U-DIMM 16GB 6000MHz AX5U6000C3016G-SAMRBK
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  •  
  • $618.90 
  • Free Shipping
8GB 3PL81AA 3PL81AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
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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 3TK87AA 3TK87AT 288-Pin DDR4 2666MHz UDIMM RAM Replacement Memory for HP
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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
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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
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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
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  • $107.24 
  • $9.99 Shipping
8GB SNPFN6XKC/8G A8058238 288-Pin DDR4 UDIMM RAM Replacement Memory for Dell
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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 Z9H60AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
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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 T0E51AA 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
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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
8GB 854913-001 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
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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 Z9H60AT 288-Pin DDR4 UDIMM RAM Replacement Memory for HP
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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
16GB 4X71D07932 288-Pin DDR4-3200 PC4-25600 Udimm RAM Replacement Memory for Lenovo
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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
  •  
  • $228.20 
  • $9.99 Shipping
16GB 4X70K09922 DDR4 2133 Udimm PC4-17000 RAM Replacement Memory for Lenovo
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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
ADATA XPG Lancer Blade RGB DDR5 16GB U-DIMM 6000MHz AX5U6000C3016G-SLABRBK
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  •  
  • $603.90 
  • Free Shipping
16GB 141H3AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
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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
  •  
  • $228.20 
  • $9.99 Shipping
16GB 13L74AT 288-Pin DDR4-3200 PC4-25600 UDIMM RAM Replacement Memory for HP
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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
  •  
  • $228.20 
  • $9.99 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:

Elizabeth
8/27/2026 10:13:42 AM
Exactly as expected

“ Bought this as an upgrade for my old prebuilt PC that I gifted to my girlfriend after a deep clean and reset. ”

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GVKB
Shirako Takamoto
8/21/2026 9:59:50 PM
"It just works."

“ Good ram, does what it says on the tin ”

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GVKB
Anonymous
8/14/2026 5:07:38 PM
Works well.

“ Upgraded to 64GB total, before prices get higher. ”

G.SKILL TridentZ RGB Series 32GB (2 x 16GB) 288-Pin PC RAM DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C18D-32GTZR
Anonymous
8/7/2026 9:50:24 AM
Good Ram for an Older PC

“ Bought this RAM to breath new life into an older low-end PC which was being crushed by Window 11 hogging all the available RAM. ”

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C18D-16GVK
Anonymous
8/6/2026 2:44:17 PM
Works well after returning defective used RAM

“ Only buy the RAM new. ”

CORSAIR Vengeance RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6400 (PC5 51200) Desktop Memory Model CMH32GX5M2B6400C36
Anonymous
8/5/2026 9:52:58 AM
Working fine for over a year

“ I've had no issues with these sticks for the year+ that I've been using them. ”

CORSAIR Vengeance RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6400 (PC5 51200) Desktop Memory Model CMH32GX5M2N6400C36
Anonymous
7/26/2026 7:09:49 PM
Reliable, no-fuss DDR4 that just works

“ Would absolutely buy G.Skill again and recommend this kit to anyone building or upgrading a DDR4 system. ”

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GVKB
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