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64GB RAM Replacement for Hynix HMCG94MEBQA, HMCG94MEBQA109N, HMCG94MEBQA121N, HMCG94MEBQA123N | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx4 Server Memory
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  • $1,732.49 
Supermicro Certified MEM-DR480L-HL02-ER26 | Hynix HMA81GR7AFR8N-VK | 8GB PC4-21300 DDR4 2666MHz 1Rx8 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $71.49 
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NEMIX RAM 64GB (8X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge FC430 Server
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NEMIX RAM 64GB (8X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge FC430 Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.35V
  • Part Number: MR21300-818K8
  • Model #: MR21300-818K8-DL-FC430
  •  
  • $555.49 
Micron MTA18ASF2G72PZ-2G6D1 16GB DDR4-2666 ECC RDIMM
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Micron MTA18ASF2G72PZ-2G6D1 16GB DDR4-2666 ECC RDIMM
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: MTA18ASF2G72PZ-2G6D1
VDFYD - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
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VDFYD - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: VDFYD
  •  
  • $299.45 
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OWC 32GB (2x16GB) DDR5 5600 PC5-44800 CL46 1Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
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OWC 32GB (2x16GB) DDR5 5600 PC5-44800 CL46 1Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
  • Brand: OWC
  • Capacity: 32GB (2 x 16GB)
  • Speed: DDR5 5600 (PC5 44800)
  • ECC: Yes
  • Model #: OWC5R6D51R4032P-B974-SF
  •  
  • $1,080.33 
Supermicro (HMA82GR7DJR8N-XN) 16GB SDRAM ECC Registered DDR4 3200 (PC4-25600) Server Memory Model MEM-DR416L-HL02-ER32
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Supermicro (HMA82GR7DJR8N-XN) 16GB SDRAM ECC Registered DDR4 3200 (PC4-25600) Server Memory Model MEM-DR416L-HL02-ER32
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: HMA82GR7DJR8N-XN
  • Type: 288-PIN DDR4 RDIMM
  • Model #: MEM-DR416L-HL02-ER32
Kingston KCS-UC432/64G 64GB DDR4 SDRAM Memory Module - 64 GB - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Dual-rank Memory - CL22 - 1.20 V - ECC - Registered - 288-pin - DIMM
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Supermicro Certified MEM-DR564L-SL01-ER48 | Samsung M321R8GA0BB0-CQK | 64GB PC5-38400 DDR5 4800MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $2,033.19 
Micron 32GB DDR4 SDRAM Memory Module - 32 GB - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Dual-rank Memory - CL22 - 1.20 V - ECC - Registered - 288-pin - DIMM
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Micron 32GB DDR4 SDRAM Memory Module - 32 GB - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Dual-rank Memory - CL22 - 1.20 V - ECC - Registered - 288-pin - DIMM
  • CAS Latency: CL22
  • Timing: 22-22-22
  • Voltage: 1.20V
  • Part Number: MTA36ASF4G72PZ-3G2R1R
  • Model #: MTA36ASF4G72PZ-3G2R1R
NEMIX RAM 256GB (4X64GB) DDR4 2133MHZ PC4-17000 4Rx4 1.2V 288-PIN ECC LRDIMM Load Reduced Server Memory KIT
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NEMIX RAM 256GB (4X64GB) DDR4 2133MHZ PC4-17000 4Rx4 1.2V 288-PIN ECC LRDIMM Load Reduced Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Part Number: ML17000-944K4
  • Model #: ML17000-944K04-822
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  • $1,153.49 
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Micron MTA18ASF2G72PDZ-3G2E1 16GB DDR4-3200 ECC RDIMM
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Micron MTA18ASF2G72PDZ-3G2E1 16GB DDR4-3200 ECC RDIMM
  • Type: 288-Pin DDR4 SDRAM
  • Model #: AL0040
P00922-B21 - HP Compatible 16GB PC4-23400 DDR4-2933Mhz 2Rx8 1.2v ECC Registered RDIMM
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P00922-B21 - HP Compatible 16GB PC4-23400 DDR4-2933Mhz 2Rx8 1.2v ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: P00922-B21
  •  
  • $239.45 
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Rimlance 8GB (1X8GB) 1.2V DDR4 2666MHz  PC4-21300 ECC UDIMM 1RX8
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Rimlance 8GB (1X8GB) 1.2V DDR4 2666MHz PC4-21300 ECC UDIMM 1RX8
  • CAS Latency: CL19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: REU21300S8C8
  •  
  • $62.00 
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NEMIX RAM 8GB (1X8GB) DDR4 2400MHZ PC4-19200 1Rx8 1.2V 288-PIN ECC RDIMM Compatible with Supermicro MEM-DR480L-HL03-ER24 Registered Server Memory
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NEMIX RAM 8GB (1X8GB) DDR4 2400MHZ PC4-19200 1Rx8 1.2V 288-PIN ECC RDIMM Compatible with Supermicro MEM-DR480L-HL03-ER24 Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: MR19200-818K1
  • Model #: MR19200-818K01-243
  •  
  • $66.88 
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NEMIX RAM 32GB (1X32GB) DDR3 1600MHZ PC4-12800 4Rx4 1.5V 240-PIN ECC RDIMM Compatible with Hynix HMT84GR7BMR4C-PB Registered Server Memory
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NEMIX RAM 32GB (1X32GB) DDR3 1600MHZ PC4-12800 4Rx4 1.5V 240-PIN ECC RDIMM Compatible with Hynix HMT84GR7BMR4C-PB Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Part Number: MR12800-344K1
  • Model #: MR12800-344K01-2409
  •  
  • $99.99 
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RIMLANCE 64GB (2X32GB) 1.2V DDR4 3200MHz PC4-25600 ECC Unbuffered SODIMM Kit  Workstation, NAS Memory Modules
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RIMLANCE 64GB (2X32GB) 1.2V DDR4 3200MHz PC4-25600 ECC Unbuffered SODIMM Kit Workstation, NAS Memory Modules
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: RES25600D8C2K64
  •  
  • $459.00 
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8GB RAM Replacement for Hynix HMA81GR7CFR8N-VK, HMA81GR7MFR8N-VK | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Hynix HMA81GR7CFR8N-VK, HMA81GR7MFR8N-VK | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1830
  •  
  • $71.49 
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4M9Y3AA - HPE Compatible 32GB DDR5-4800Mhz 2Rx8 ECC UDIMM
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4M9Y3AA - HPE Compatible 32GB DDR5-4800Mhz 2Rx8 ECC UDIMM
  • Chipset: Major Brand Chipset
  • Rank: 2Rx8
  • Parts: 5 Years
  • Model #: 4M9Y3AA
  •  
  • $1,259.45 
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AB120717 - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v Non-ECC UDIMM
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AB120717 - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v Non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: AB120717
  •  
  • $159.45 
  • Free Shipping
NEMIX RAM 128GB (8X16GB) DDR4 3200MHZ PC4-25600 1Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 128GB (8X16GB) DDR4 3200MHZ PC4-25600 1Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-614K8
  • Model #: MR25600-614K8-G
  •  
  • $1,260.49 
A-Tech 32GB (2x16GB) 1Rx4 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 32GB (2x16GB) 1Rx4 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT16G2D4D2400RS4N12V
  •  
  • $276.85 
NEMIX RAM 8GB (1X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC Unbuffered UDIMM Memory Compatible with Hynix HMT41GU7AFR8A-PB
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NEMIX RAM 8GB (1X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC Unbuffered UDIMM Memory Compatible with Hynix HMT41GU7AFR8A-PB
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Part Number: ME12800-828LK1
  • Model #: ME12800-828LK01-2658
  •  
  • $28.99 
  • Free Shipping
Hynix HMA81GU6CJR8N-VK
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Hynix HMA81GU6CJR8N-VK
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: HMA81GU6CJR8N-VK
16GB RAM Replacement for HP P06187-001, P19041-K21, P38448-B21 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx4 Server Memory
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16GB RAM Replacement for HP P06187-001, P19041-K21, P38448-B21 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: 5053772484153
  •  
  • $165.59 
Supermicro Certified MEM-DR532MD-ER48 | Samsung M321R4GA3BB6-CQK | 32GB PC5-38400 DDR5 4800MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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Supermicro Certified MEM-DR532MD-ER48 | Samsung M321R4GA3BB6-CQK | 32GB PC5-38400 DDR5 4800MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Samsung Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8 (EC8)
  • Model #: MEM-DR532MD-ER48 M321R4GA3BB6-CQK
  •  
  • $827.63 
A-Tech 256GB (8x32GB) 4Rx4 PC3L-12800L DDR3 / DDR3L 1600 MHz ECC LRDIMM 1.35V Load Reduced DIMM 240-Pin Quad Rank x4 Low Voltage Server RAM Memory Upgrade Kit
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  • $519.92 
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SK hynix 32GB PC4-2666V-R DDR4 Registered ECC 2RX4 Memory RDIMM HMA84GR7CJR4N-VK
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SK hynix
SK hynix 32GB PC4-2666V-R DDR4 Registered ECC 2RX4 Memory RDIMM HMA84GR7CJR4N-VK
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: HMA84GR7CJR4N-VK
Samsung M393A2G40DB0-CPB0Q 16GB DDR4 SDRAM Memory Module
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SAMSUNG
Samsung M393A2G40DB0-CPB0Q 16GB DDR4 SDRAM Memory Module
  • Brand: SAMSUNG
  • Model #: M393A2G40DB0-CPB0Q
NEMIX RAM 32GB (1X32GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R760XD2 Server
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NEMIX RAM 32GB (1X32GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R760XD2 Server
  • Brand: NEMIX RAM
  • Series: Dell Series Server Memory
  • Capacity: 32GB
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-324K1-DLPER760XD2
  •  
  • $988.88 
  • Free Shipping
Samsung M393A2G40EB2-CTD6Q
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SAMSUNG
Samsung M393A2G40EB2-CTD6Q
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: M393A2G40EB2-CTD6Q
  •  
  • $121.03 
NEMIX RAM 64GB (2X32GB) DDR3 1333MHZ PC4-10600 4Rx4 1.35V 240-PIN ECC RDIMM KIT Compatible with Cisco UCS C-Series M2 Server UCS-MR-2X324RX-C Registered Server Memory
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NEMIX RAM 64GB (2X32GB) DDR3 1333MHZ PC4-10600 4Rx4 1.35V 240-PIN ECC RDIMM KIT Compatible with Cisco UCS C-Series M2 Server UCS-MR-2X324RX-C Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Part Number: MR10600-344LK2
  • Model #: 118-350-165
  •  
  • $199.89 
  • Free Shipping
Hynix HMA82GU6CJR8N-VK
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SK hynix
Hynix HMA82GU6CJR8N-VK
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: HMA82GU6CJR8N-VK
RIMLANCE 64GB(2X32GB) DDR4 2933MHz PC4-23400 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT
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RIMLANCE 64GB(2X32GB) DDR4 2933MHz PC4-23400 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT

Limited time offer, ends 06/24

  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: RRD23400D4C2K64
  •  
  • $340.00 
  • 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