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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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Micron MTA36ASF4G72PZ-2G9E2 32GB DDR4-2933 ECC RDIMM
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Micron MTA36ASF4G72PZ-2G9E2 32GB DDR4-2933 ECC RDIMM
  • Type: 288-Pin DDR4 SDRAM
  • Model #: MTA36ASF4G72PZ-2G9E2
NEMIX RAM 32GB (1X32GB) DDR3 1600MHZ PC3-12800 4Rx4 1.5V 240-PIN ECC LRDIMM Compatible with Hynix HMT84GL7MMR4C-PB Load Reduced Server Memory
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NEMIX RAM 32GB (1X32GB) DDR3 1600MHZ PC3-12800 4Rx4 1.5V 240-PIN ECC LRDIMM Compatible with Hynix HMT84GL7MMR4C-PB Load Reduced Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Part Number: ML12800-344K1
  • Model #: ML12800-344K01-2396
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  • $49.99 
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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
A-Tech 64GB (8x8GB) 2Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (8x8GB) 2Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: AT8G8D4D2400RD8N12V
  •  
  • $396.64 
Supermicro Certified MEM-DR340L-HL05-ER13 | Hynix HMT151R7TFR4C-H9 | 4GB PC3-10600 DDR3 1333MHz 2Rx4 Dual Rank ECC RDIMM Registered 240-Pin Server Memory RAM
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  • $20.50 
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Hynix 1gb Ddr2 Pc2-5300 667mhz Ecc Fully Buffered Cl5 1.8v Dual Rank
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  • $30.00 
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Samsung M393b1g70bh0-Ck0  Memory Module-M393b1g70bh0-Ck0
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NEMIX RAM 192GB (12 x 16GB) DDR5 6400MHz PC5-51200 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Kit
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NEMIX RAM 192GB (12 x 16GB) DDR5 6400MHz PC5-51200 1Rx8 1.1V 288-PIN ECC RDIMM Registered Server Memory Kit
  • Brand: NEMIX RAM
  • Capacity: 192GB (12 x 16GB)
  • Speed: DDR5 6400 (PC5 51200)
  • ECC: Yes
  • Model #: MR51200-618K12-SM-AS-1125HS-TNR
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  • $7,139.99 
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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 
RIMLANCE 32GB(1X32GB) DDR4 2933MHz PC4-23400 2Rx4 1.2V 288-PIN ECC Registered RDIMM Server Memory
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RIMLANCE 32GB(1X32GB) DDR4 2933MHz PC4-23400 2Rx4 1.2V 288-PIN ECC Registered RDIMM Server Memory
  • CAS Latency: CL21
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: RRD23400D4C32
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  • $178.00 
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32GB RAM Replacement for IBM-Lenovo 4X71B67861, 4X77A08633, 4X77A85861, 4ZC7A15122 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
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32GB RAM Replacement for IBM-Lenovo 4X71B67861, 4X77A08633, 4X77A85861, 4ZC7A15122 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772486126
  •  
  • $382.05 
SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40CB2-CTD
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SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40CB2-CTD
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: M393A4K40CB2-CTD
Hynix 16GB DDR3 1600 MHz PC3L-12800R ECC 2RX4 CL11 1.35V - HMT42GR7MFR4A-PB
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SK hynix
Hynix 16GB DDR3 1600 MHz PC3L-12800R ECC 2RX4 CL11 1.35V - HMT42GR7MFR4A-PB
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Type: 240-Pin DDR3 SDRAM
  • Model #: B00IMYH1U8
SAMSUNG M393A4K40CB2-CTD6Q Samsung DDR4-2666 32GB/2Gx4 ECC/REG CL19 Server Memory
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SAMSUNG
SAMSUNG M393A4K40CB2-CTD6Q Samsung DDR4-2666 32GB/2Gx4 ECC/REG CL19 Server Memory
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Parts: 1 Year
  • Model #: SA#M393A4K40CB2CTD6
4X70J67437 - Lenovo Compatible 8GB PC4-17000 DDR4-2133Mhz 2RX8 1.2v ECC SODIMM
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4X70J67437 - Lenovo Compatible 8GB PC4-17000 DDR4-2133Mhz 2RX8 1.2v ECC SODIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 4X70J67437
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  • $84.95 
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Supermicro Certified MEM-DR432LC-ER32 | Hynix HMA84GR7CJR4N-XN | 32GB PC4-25600 DDR4 3200MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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in 30 days
Supermicro Certified MEM-DR432LC-ER32 | Hynix HMA84GR7CJR4N-XN | 32GB PC4-25600 DDR4 3200MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: MEM-DR432LC-ER32 HMA84GR7CJR4N-XN
  •  
  • $397.02 
NEMIX RAM 2TB (8 x 256GB) DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory Kit
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NEMIX RAM 2TB (8 x 256GB) DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory Kit
  • Brand: NEMIX RAM
  • Capacity: 2TB (8 x 256GB)
  • Speed: DDR5 6400 (PC5 51200)
  • ECC: Yes
  • Model #: MR51200-2544K8-SM-SYS-112B-WR
  •  
  • $62,999.99 
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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 
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16GB RAM Replacement for Micron MTA18ASF2G72PZ-3G2E2, MTA18ASF2G72PZ-3G2R1 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
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  • $210.37 
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
32GB RAM Replacement for Hynix HMCG88AEBRA168N | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx8 (EC8) Server Memory
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32GB RAM Replacement for Hynix HMCG88AEBRA168N | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx8 (EC8) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8
  • Model #: 5053772479128
  •  
  • $931.08 
Micron 32GB 288-Pin DDR4 SDRAM Registered DDR4 2933 (PC4 23400) Server Memory Model MTA36ASF4G72PZ-2G9J3
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Micron 32GB 288-Pin DDR4 SDRAM Registered DDR4 2933 (PC4 23400) Server Memory Model MTA36ASF4G72PZ-2G9J3
  • CAS Latency: CL21
  • Timing: 21-21-21
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: MTA36ASF4G72PZ-2G9J3
NEMIX RAM 32GB (2 x 16GB) DDR5 5200MHz PC5-41600 1Rx8 1.1V 288-PIN ECC UDIMM Unbuffered Memory Kit
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NEMIX RAM 32GB (2 x 16GB) DDR5 5200MHz PC5-41600 1Rx8 1.1V 288-PIN ECC UDIMM Unbuffered Memory Kit
  • Brand: NEMIX RAM
  • Capacity: 32GB (2 x 16GB)
  • Speed: DDR5 5200 (PC5 41600)
  • ECC: Yes
  • Model #: ME41600-618K2-SM-AS-1015A-MT-01-G2
  •  
  • $828.99 
32GB DDR5 6400MHZ PC5-51200 CL52 2Rx8 1.1V 288-PIN ECC Registered RDIMM NEMIX RAM Server Memory Compatible with SuperMicro MEM-DR532MD-ER64
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32GB DDR5 6400MHZ PC5-51200 CL52 2Rx8 1.1V 288-PIN ECC Registered RDIMM NEMIX RAM Server Memory Compatible with SuperMicro MEM-DR532MD-ER64
  • Brand: NEMIX RAM
  • Capacity: 32GB
  • Speed: DDR5 6400 (PC5 51200)
  • ECC: Yes
  • Model #: MR51200-328K1-DR532MD-ER64-V27
  •  
  • $1,488.00 
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32GB RAM Replacement for IBM-Lenovo 02JG183, 4X77A08634, 4X77A12188, 4ZC7A15123 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx8 Server Memory
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in 30 days
32GB RAM Replacement for IBM-Lenovo 02JG183, 4X77A08634, 4X77A12188, 4ZC7A15123 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772486133
  •  
  • $340.58 
A-Tech 256GB (8x32GB) 1Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 256GB (8x32GB) 1Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Part Number: AT32G8D4D2933RS4N12V
  • Model #: AT32G8D4D2933RS4N12V
  •  
  • $2,347.93 
SK Hynix HMA41GR7MFR8N-TF 8GB 2RX8 PC4 2133P REG For Server
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P50311?B21 - HPE Compatible 32GB DDR5-4800Mhz 2Rx8 ECC Registered RDIMM
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P50311?B21 - HPE Compatible 32GB DDR5-4800Mhz 2Rx8 ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • Rank: 2Rx8
  • Parts: 5 Years
  • Model #: P50311?B21
  • $2,469.24
  •  
  • $1,199.45 
  • Save: 51%
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SNP29NJ4C/8G - Dell Compatible 8GB DDR5-4800Mhz 1Rx16 Non-ECC  UDIMM
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SNP29NJ4C/8G - Dell Compatible 8GB DDR5-4800Mhz 1Rx16 Non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Rank: 1Rx16
  • Parts: 5 Years
  • Model #: SNP29NJ4C/8G
  •  
  • $159.45 
  • Free Shipping
NEMIX RAM 8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R740xd2 Rack Server
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NEMIX RAM 8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R740xd2 Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.35V
  • Part Number: MR21300-818K1
  • Model #: MR21300-818K1-PER740XD2
  •  
  • $69.99 
Samsung M321RYGA0BB0-CQK 96GB DDR5-4800 ECC RDIMM
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SAMSUNG
Samsung M321RYGA0BB0-CQK 96GB DDR5-4800 ECC RDIMM
  • Type: Other
  • Model #: M321RYGA0BB0-CQKqh9
NEMIX RAM 256GB (8X32GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R760 Server
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NEMIX RAM 256GB (8X32GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R760 Server
  • Brand: NEMIX RAM
  • Series: Dell Series Server Memory
  • Capacity: 256GB (8 x 32GB)
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-324K8-DLPER760
  •  
  • $7,843.89 
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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
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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 
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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