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OWC 128GB (8x16GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 128GB (8x16GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Multi-channel Kit: Dual Channel Kit
  • Part Number: 3R2D42R4128K
  • Model #: OWC3R2D42R4128K
  •  
  • $1,276.08 
Supermicro Certified MEM-DR416LA-ER24 | Samsung M393A2K40CB1-CRC | 16GB PC4-19200 DDR4 2400MHz 1Rx4 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  •  
  • $140.39 
NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-628K4
  • Model #: MR21300-628K04-457
  •  
  • $538.89 
  • Free Shipping
Kingston KF564R32RBE2-32  32GB (1 x 32GB) DDR5 6400MT/s CL32 FURY Renegade Pro RDIMM Black EXPO - For Motherboard - 32 GB (1 x 32GB) - DDR5-6400/PC5-51200 DDR5 SDRAM - 6400 MHz Dual-rank Memory - CL32
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  • COMING SOON
NEMIX RAM 16GB (1X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell 1V1N1
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NEMIX RAM 16GB (1X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell 1V1N1
  • Brand: NEMIX RAM
  • Series: Dell Series Server Memory
  • Capacity: 16GB
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-618K1-1V1N1
  •  
  • $528.88 
A-Tech 16GB (2x8GB) 2Rx8 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (2x8GB) 2Rx8 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT8G2D4D2133RD8N12V
  •  
  • $98.98 
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Compatible with DELL PowerEdge T350 Server
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Compatible with DELL PowerEdge T350 Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: ME25600-628K1
  • Model #: 759170901920
  •  
  • $169.88 
16GB RAM Replacement for Synology D4EC-2666-16G | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
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16GB RAM Replacement for Synology D4EC-2666-16G | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772488977
  •  
  • $209.99 
A-Tech 8GB 2Rx4 PC3L-10600R DDR3 / DDR3L 1333 MHz ECC RDIMM 1.35V ECC Registered DIMM 240-Pin Dual Rank x4 Low Voltage Server & Workstation RAM Memory Upgrade Module
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  •  
  • $19.51 
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SAMSUNG 32GB 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Server Memory Model M386A4G40DM0-CPB
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SAMSUNG
SAMSUNG 32GB 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Server Memory Model M386A4G40DM0-CPB
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M386A4G40DM0-CPB
Kingston KF564R32RB-32 FURY Renegade Pro 32GB DDR5 Memory Module - 32 GB (1 x 32GB) - DDR5-6400/PC5-51200 DDR5 - 6400 MHz Single-rank Memory - CL32 - 1.40 V - ECC - Registered
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AA335287 - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC SODIMM
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AA335287 - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC SODIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: AA335287
  •  
  • $84.45 
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HMA82GU7CJR8N-VK - SK Hynix 1x 16GB DDR4-2666 ECC UDIMM PC4-21300V-E Dual Rank x8 Module
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SK hynix
HMA82GU7CJR8N-VK - SK Hynix 1x 16GB DDR4-2666 ECC UDIMM PC4-21300V-E Dual Rank x8 Module
  • CAS Latency: CL11
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: HY4162666ECCD8-1-M5
AB120718 - Dell Compatible 8GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v Non-ECC UDIMM
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AB120718 - Dell Compatible 8GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v Non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: AB120718
  •  
  • $99.45 
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Team T-Create Master 192GB (8 x 24GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model MASTER DDR5 WORKSTATION MEMORY BLACK - CTCMD5192G6000HC32AOC01
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Team Group
Team T-Create Master 192GB (8 x 24GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model MASTER DDR5 WORKSTATION MEMORY BLACK - CTCMD5192G6000HC32AOC01
  • Brand: Team
  • Series: T-Create Master
  • Capacity: 192GB (8 x 24GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: CTCMD5192G6000HC32AOC01
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  • $4,739.99 
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NEMIX RAM 64GB (8X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 64GB (8X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-818K8
  • Model #: MR25600-818K8-G
  •  
  • $769.99 
SAMSUNG 16GB ECC Registered DDR3 1600 (PC3 12800) Server Memory Model M393B2G70DB0-YK0
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SAMSUNG 16GB ECC Registered DDR3 1600 (PC3 12800) Server Memory Model M393B2G70DB0-YK0
  • CAS Latency: CL11
  • Voltage: 1.5V / 1.35V
  • Type: 240-Pin DDR3 SDRAM
  • Rank: 2Rx4
  • Model #: M393B2G70DB0-YK0
SAMSUNG 16GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model M393A2G40DB0-CPB
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SAMSUNG 16GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model M393A2G40DB0-CPB
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: M393A2G40DB0-CPB
Samsung M321R8GA0BB0-CQK 64GB 2Rx4 PC5-38400 4800MHz DDR5 EC8 RDIMM ECC Registered Server Memory RAM
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OWC 128GB (4x32GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 128GB (4x32GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Multi-channel Kit: Dual Channel Kit
  • Part Number: 3R2D42R4128S
  • Model #: OWC3R2D42R4128S
  •  
  • $1,314.68 
64GB RAM Replacement for Samsung M321R8GA0PB1-CCP, M321R8GA0PB2-CCP, M321R8GA0EB2-CCP | DDR5 6400MHz PC5-51200 ECC RDIMM 2Rx4 (EC8) Server Memory
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64GB RAM Replacement for Samsung M321R8GA0PB1-CCP, M321R8GA0PB2-CCP, M321R8GA0EB2-CCP | DDR5 6400MHz PC5-51200 ECC RDIMM 2Rx4 (EC8) Server Memory
  • Brand: A-Tech
  • Series: Compatible Replacement for Samsung M321R8GA0PB1-CCP M321R8GA0PB2-CCP M321R8GA0EB2-CCP
  • Capacity: 64GB
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: NE-PNR-2498
  •  
  • $2,194.49 
  • Free Shipping
HYNIXHynix Hma84Gl7Mmr4N-Tf Hynix Memory For Server Memory-Hma84Gl7Mmr4N-Tf
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SK hynix
HYNIXHynix Hma84Gl7Mmr4N-Tf Hynix Memory For Server Memory-Hma84Gl7Mmr4N-Tf
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 4Rx4
  • Model #: HMA84GL7MMR4N-TF
HYNIXHynix Hma41Gr7Afr8N-Tf Hynix 8Gb (1X8Gb) 2133Mhz Pc417000 Cl15 2Rx8 Ecc Registered 1.2V Ddr4 Sdram 288Pin Rdimm Memory Module For Server
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Micron 16GB Server Workstation Memory - DDR4 3200 - ECC Parity - Registered - 2Rx8 - CL22 - 1.2V
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Micron 16GB Server Workstation Memory - DDR4 3200 - ECC Parity - Registered - 2Rx8 - CL22 - 1.2V
  • Voltage: 1.20V
  • Part Number: MTA18ASF2G72PDZ-3G2R
  • Type: RDIMM
  • Rank: 2Rx8
  • Model #: MTA18ASF2G72PDZ-3G2R
Micron MTA18ASF2G72HZ-2G6E1 16GB DDR4-2666 ECC SODIMM
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Micron MTA18ASF2G72HZ-2G6E1 16GB DDR4-2666 ECC SODIMM
  • Type: 260-Pin DDR4 SO-DIMM
  • Model #: MTA18ASF2G72HZ-2G6E1
TN78Y - Dell Compatible 32GB PC4-21300 DDR4-2666MHz 2Rx4 1.2V ECC Registered RDIMM
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TN78Y - Dell Compatible 32GB PC4-21300 DDR4-2666MHz 2Rx4 1.2V ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: TN78Y
  •  
  • $219.45 
  • Free Shipping
P48500-001 - HPE Compatible 32GB PC5-38400 DDR5-4800Mhz 1Rx4 ECC Registered RDIMM
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P48500-001 - HPE Compatible 32GB PC5-38400 DDR5-4800Mhz 1Rx4 ECC Registered RDIMM
  • Brand: HPE
  • Capacity: 32GB
  • Speed: DDR5 4800 (PC5 38400)
  • ECC: Yes
  • Model #: P48500-001
  •  
  • $749.45 
  • Free Shipping
A-Tech 16GB 1Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Module
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A-Tech 16GB 1Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Module
  • Brand: A-Tech
  • Series: A-Tech DDR5 Server Memory RAM
  • Capacity: 16GB
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: AT16G1D5D5600US8EC4N11V
  •  
  • $439.99 
Samsung M391A2K43BB1-CRC 16GB DDR4-2400 ECC UDIMM 2Rx8 Server Memory Module
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SAMSUNG
Samsung M391A2K43BB1-CRC 16GB DDR4-2400 ECC UDIMM 2Rx8 Server Memory Module
  • Chipset: Samsung Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M391A2K43BB1-CRC
SAMSUNG 16GB ECC Registered DDR3 1333 (PC3 10600) Server Memory Model M393B2G70BH0-YH9
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SAMSUNG 16GB ECC Registered DDR3 1333 (PC3 10600) Server Memory Model M393B2G70BH0-YH9
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Type: 240-Pin DDR3 SDRAM
  • Model #: M393B2G70BH0-YH9
SNPWTHG4C/16G - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v 260-Pin DDR4 SO-DIMM
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SNPWTHG4C/16G - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v 260-Pin DDR4 SO-DIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 260-Pin DDR4 SO-DIMM
  • Rank: 2Rx8
  • Model #: SNPWTHG4C/16G
DK8NX - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 Non-ECC UDIMM
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DK8NX - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 Non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Parts: 5 Years
  • Model #: DK8NX
  •  
  • $159.45 
  • Free Shipping
NEMIX RAM 64GB (1X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Samsung M393A8G40CB4-CWE
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NEMIX RAM 64GB (1X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Samsung M393A8G40CB4-CWE
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-924K1
  • Model #: MR25600-924K1-M393A8G40CB4-CWE
  •  
  • $538.78 

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