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Hynix HMA81GR7CJR8N-WM 8GB DDR4-2933 ECC REG DIMM Memory
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  • $121.03 
OWC 64GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 64GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R464GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R464GB
  •  
  • $539.99 
OWC 64GB Replacement for Kingston KSM48R40BD4TMM-64HMR - DDR5 4800 PC5-38400 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade
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  •  
  • $1,529.99 
OWC 16GB Replacement for Kingston KSM32RD8/16HDR KSM32RD8/16MRR - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
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OWC 16GB Replacement for Kingston KSM32RD8/16HDR KSM32RD8/16MRR - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R816GB-B165-SF
  •  
  • $159.99 
OWC 16GB Replacement for Micron MTA18ASF2G72PDZ-3G2 - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
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OWC 16GB Replacement for Micron MTA18ASF2G72PDZ-3G2 - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R816GB-B166-SF
  •  
  • $159.99 
Kingston KSM56R46BD4PMI-64MDI  64GB DDR5 SDRAM Memory Module - 64 GB - DDR5-5600/PC5-44800 DDR5 SDRAM - 5600 MHz Dual-rank Memory - CL46 - 1.10 V - On-die ECC - Registered - 288-pin - DIMM
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32GB RAM Replacement for Micron MTC20C2085S1EC48BA1 | DDR5 4800MHz PC5-38400 ECC UDIMM 2Rx8 Server Memory
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32GB RAM Replacement for Micron MTC20C2085S1EC48BA1 | DDR5 4800MHz PC5-38400 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8 (EC4)
  • Model #: NE-PNR-2148
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  • $779.99 
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A-Tech 128GB (2x64GB) 2S2Rx4 (4Rx4 3DS) PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
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A-Tech 128GB (2x64GB) 2S2Rx4 (4Rx4 3DS) PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT64G2D4D2666RQ4N12V
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  • $777.79 
A-Tech 64GB (8x8GB) 1Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (8x8GB) 1Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: AT8G8D4D3200RS8N12V
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  • $910.99 
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16GB RAM Replacement for Hynix HMA82GU7AFR8N-UH, HMA82GU7CJR8N-UH, HMA82GU7DJR8N-UH, HMA82GU8AFR8N-UH | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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  • $179.99 
Kingston 8GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KTD-PE421/8G
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  • $79.99 
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Hynix 16GB ECC Registered DDR3 1600 (PC3 12800) Server Memory Model HMT42GR7MFR4C-PB
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SK hynix
Hynix 16GB ECC Registered DDR3 1600 (PC3 12800) Server Memory Model HMT42GR7MFR4C-PB
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Type: 240-Pin DDR3 SDRAM
  • Model #: HMT42GR7MFR4C-PB
NEMIX RAM 8GB (1X8GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-8GDR4-RD-2400 NAS Registered Server Memory
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NEMIX RAM 8GB (1X8GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-8GDR4-RD-2400 NAS Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: MR19200-828K1
  • Model #: MR19200-828K1-QN-RAM-8GDR4-RD-2400
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  • $66.88 
NEMIX RAM 8GB (1X8GB) DDR4 2133MHZ PC4-17000 1Rx4 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-8GDR4-RD-2133 NAS Registered Server Memory
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NEMIX RAM 8GB (1X8GB) DDR4 2133MHZ PC4-17000 1Rx4 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-8GDR4-RD-2133 NAS Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Part Number: MR17000-814K1
  • Model #: MR17000-814K1-QN-RAM-8GDR4-RD-2133
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  • $59.99 
Kingston 8GB DDR4 SDRAM ECC Registered DDR4 2666 (PC4 21300) (Server Memory) Model KSM26RS8/8HAI
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Kingston 8GB DDR4 SDRAM ECC Registered DDR4 2666 (PC4 21300) (Server Memory) Model KSM26RS8/8HAI
  • CAS Latency: CL19
  • Timing: 19-19-19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: KSM26RS8/8HAI
V-COLOR DDR5 64GB (16GBx4) 7000MHz CL34 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA516G70S834Q)
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V-COLOR DDR5 64GB (16GBx4) 7000MHz CL34 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA516G70S834Q)
  • Brand: V-Color
  • Series: OC R-DIMM
  • Capacity: 64GB (4 x 16GB)
  • Speed: DDR5 7000 (PC5 56000)
  • Model #: TRA516G70S834Q
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  • $2,729.99 
  • $20.00 Shipping
NEMIX RAM 128GB (8X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R760xa Rack Server
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NEMIX RAM 128GB (8X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R760xa Rack Server
  • Brand: NEMIX RAM
  • Series: Dell Series Server Memory
  • Capacity: 128GB (8 x 16GB)
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-618K8-DLPER760XA
  •  
  • $4,195.49 
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OWC 64GB (2x32GB) DDR5 5600 PC5-44800 CL46 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
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OWC 64GB (2x32GB) DDR5 5600 PC5-44800 CL46 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
  • Brand: OWC
  • Capacity: 64GB (2 x 32GB)
  • Speed: DDR5 5600 (PC5 44800)
  • ECC: Yes
  • Model #: OWC5R6D52R4064P-B975-SF
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  • $2,193.38 
G.SKILL G5 Series 192GB (4 x 48GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G48GQ4-G5
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in 30 days
G.SKILL
G.SKILL G5 Series 192GB (4 x 48GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G48GQ4-G5

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Series
  • Capacity: 192GB (4 x 48GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: F5-6000R3036G48GQ4-G5
  •  
  • $5,039.00 
  • Free Shipping
TEAMGROUP T-Create Master Overclocking DDR5 R-DIMM 64GB Kit (4 x 16GB) 6400MHz (PC5-51200) CL32 Hynix A-DIE Workstation Memory Module Ram Black - CTCMD564G6400HC32AQC01
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Team Group
TEAMGROUP T-Create Master Overclocking DDR5 R-DIMM 64GB Kit (4 x 16GB) 6400MHz (PC5-51200) CL32 Hynix A-DIE Workstation Memory Module Ram Black - CTCMD564G6400HC32AQC01
  • Brand: Team
  • Series: T-Create Master
  • Capacity: 64GB (4 x 16GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: CTCMD564G6400HC32AQC01
A-Tech 32GB (8x4GB) 1Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 32GB (8x4GB) 1Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: AT4G8D4D2400RS8N12V
  • Model #: AT4G8D4D2400RS8N12V
  •  
  • $202.31 
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8GB RAM Replacement for Samsung M393A1K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Samsung M393A1K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479838
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  • $119.99 
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2GB RAM Replacement for Synology RAMEC1600DDR3-2GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
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2GB RAM Replacement for Synology RAMEC1600DDR3-2GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772488854
  •  
  • $35.50 
  • Free Shipping
A-Tech 64GB (8x8GB) 1Rx8 PC4-25600E DDR4 3200 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (8x8GB) 1Rx8 PC4-25600E DDR4 3200 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: AT8G8D4D3200US8N12V
  • Model #: AT8G8D4D3200US8N12V
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  • $1,079.92 
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Kingston 8GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KTH-PL421/8G
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Kingston 8GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KTH-PL421/8G
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx4
  • Model #: KTH-PL421/8G
Supermicro Certified MEM-DR440L-CL01-ER24 Micron 4GB DDR4-2400 ECC REG
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Supermicro Certified MEM-DR440L-CL01-ER24 Micron 4GB DDR4-2400 ECC REG
  • Type: 288-Pin DDR4 SDRAM
  • Model #: MEM-DR440L-CL01-ER24
  •  
  • $39.88 
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NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC UDIMM Compatible with Supermicro MEM-DR416L-SL01-EU24 ECC Unbuffered Memory
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NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC UDIMM Compatible with Supermicro MEM-DR416L-SL01-EU24 ECC Unbuffered Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: ME19200-628K1
  • Model #: ME19200-628K01-254
  •  
  • $169.99 
  • Free Shipping
NEMIX RAM 32GB (1X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR532MD-ER48
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NEMIX RAM 32GB (1X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR532MD-ER48
  • Brand: NEMIX RAM
  • Series: Supermicro Series Server Memory
  • Capacity: 32GB
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-328-SM-MEM-DR532MD-ER48
  •  
  • $988.88 
  • Free Shipping
NEMIX RAM 16GB (2X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC UDIMM Unbuffered Memory KIT
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NEMIX RAM 16GB (2X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC UDIMM Unbuffered Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Part Number: ME12800-828K2
  • Model #: ME12800-828K02-361
  •  
  • $57.99 
  • Free Shipping
NEMIX RAM 32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Memory KIT
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NEMIX RAM 32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: ME21300-628K2
  • Model #: ME21300-628K02-540
  •  
  • $335.49 
  • Free Shipping
V-COLOR DDR5 384GB (96GBx4) 6000MHz CL34 6Gx4 2Rx4 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA596G60D434Q)
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V-COLOR DDR5 384GB (96GBx4) 6000MHz CL34 6Gx4 2Rx4 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA596G60D434Q)
  • Part Number: TRA596G60D434Q
  • Type: 288-Pin DDR5 RDIMM
  • CAS Latency: CL34
  • Timing: 34-38-38-96
  • Model #: TRA596G60D434Q
  •  
  • $11,999.99 
  • Free Shipping

Choosing the right server memory can boost the performance and reliability of your data center by checking for data errors and reducing electrical loads. There are different types of server RAM to prevent crashes, correct inaccuracies in your data or allow for faster operation.

ECC Memory Uses Algorithms to Constantly Check Data for Errors

ECC server memory can prevent system failure and data corruption, which is particularly important in data centers and business environments, such as healthcare and finance. ECC memory adds a ""parity bit"" to each binary code to detect errors. When writing data, this type of system-specific memory creates and stores an ECC code. When it reads data, ECC memory creates a new ECC code and compares it to the one it had previously stored. If there are errors, the memory decrypts the corrupted data and corrects it immediately. ECC computer memory uses algorithms to continually check for single-bit errors as the server processes data. This type of server memory can be slower than others, but it reduces system crashes. It also tends to be more expensive. The other components of the server, such as the processor and motherboard, must support ECC memory.

Registered Memory Puts Less Strain on CPU Memory Controller

There are two types of ECC server memory: unbuffered and registered. When using unbuffered memory, the CPU communicates directly with the data banks for faster performance. Registered memory has registers on each memory bank module. The CPU needs to communicate with the registers first, then the registers communicate with the DRAM. This process means that every instruction from the server requires at least one extra CPU cycle, resulting in slower performance. However, registered server memory puts less strain on the CPU's memory controller, and increases reliability, a useful choice in data centers and business settings. Registered memory works with the DDR, DDR2 and DDR3 modules of many server models. 

Load-reduced Dual Inline Memory Modules Reduce Electrical Loading on the Memory Bus

A load-reduced dual inline memory module (LRDIMM) is a type of server memory that reduces electrical loading on the memory bus. LRDIMMs have a memory buffer chip for each module that goes into the parallel memory bus. This way, they do not connect directly to the bus like other types of memory. When a server only has LRDIMMs as dynamic RAM, the memory controllers shift from parallel to serial mode, so the memory buffer handles all the read and write operations. Thanks to the reduced electrical load, LRDIMMs typically work faster than registered memory. 

Dynamic RAM Is Common as Main Memory

When considering desktop memory, there are two types of server RAM: static and dynamic. Static RAM (SRAM) has a more complex construction, with latches and transistors. Each block of memory requires six transistors. SRAM consumes less power than dynamic RAM (DRAM) and it is faster, but it is only available in smaller storage sizes. Since SRAM has a short access time, it is most common as cache memory. DRAM has a larger access time, so it is more common as the main memory. It is generally more expensive than SRAM. These factors also apply to laptop memory.

Bestselling Server Memory Reviews:

Matthew D.
7/29/2023 12:51:29 PM
Works with Ryzen Pro 4350G and Asrock B550 Mini-ITX

“ Highly recommended if you are building a home server on a Ryzen platform and need ECC ram that is compatible. ”

NEMIX RAM 32GB (2X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM KIT
Thomas
6/14/2022 1:17:58 PM
Works great in a consumer build

“ An advantage of this server memory is it works out of the box with the BIOS with no overclock profile required and runs at 1.2V. ”

Micron DDR4-3200 32GB/4Gx72 ECC CL22 Server Memory