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32GB RAM Replacement for Samsung M391A4G43MB1-CTD | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
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32GB RAM Replacement for Samsung M391A4G43MB1-CTD | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772479500
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  • $358.79 
32GB RAM Replacement for Samsung M321R4GA0PB0-CWM | DDR5 5600MHz PC5-44800 ECC RDIMM 1Rx4 Server Memory
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32GB RAM Replacement for Samsung M321R4GA0PB0-CWM | DDR5 5600MHz PC5-44800 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Samsung Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx4 (EC8)
  • Model #: NE-PNR-2282
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  • $933.68 
A-Tech 128GB (4x32GB) 2Rx4 PC4-21300L DDR4 2666 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 2DRx4 Dual Rank x4 Server RAM Memory Upgrade Kit
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A-Tech 128GB (4x32GB) 2Rx4 PC4-21300L DDR4 2666 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 2DRx4 Dual Rank x4 Server RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT32G4D4D2666LD4N12V
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  • $952.57 
Black Diamond Memory 8GB ECC Unbuffered DDR3 1600 (PC3 12800) Server Memory Model BD8G1600MTO22
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  •  
  • $149.99 
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Black Diamond Memory 16GB ECC Registered DDR4 2933 (PC4 23400) Server Memory Model BD16G2933MQR26
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  •  
  • $499.99 
  • Free Shipping
Supermicro Certified MEM-DR432L-SL01-ER24 | Samsung M393A4K40BB1-CRC | 32GB PC4-19200 DDR4 2400MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  •  
  • $151.00 
16GB RAM Replacement for Dell 1V1N1 | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
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16GB RAM Replacement for Dell 1V1N1 | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx8 (EC8)
  • Model #: 5053772483101
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  • $503.11 
32GB RAM Replacement for Hynix HMCG88MEBEA | DDR5 4800MHz PC5-38400 ECC UDIMM 2Rx8 Server Memory
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32GB RAM Replacement for Hynix HMCG88MEBEA | DDR5 4800MHz PC5-38400 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8 (EC4)
  • Model #: NE-PNR-1900
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  • $779.99 
  • Free Shipping
Black Diamond Memory 16GB (2 x 8GB) ECC Registered DDR4 2933 (PC4 23400) Server Memory Model BD8GX22933MQR26
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  • $499.99 
  • Free Shipping
Kingston 32GB DDR4 SDRAM Memory Module - 32 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM - KTD-PE426/32G
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A-Tech 64GB 4Rx4 PC4-25600L DDR4 3200 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 4DRx4 Quad Rank x4 Server RAM Memory Upgrade Module
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A-Tech 64GB 4Rx4 PC4-25600L DDR4 3200 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 4DRx4 Quad Rank x4 Server RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 4Rx4 (4DRx4)
  • Model #: AT64G1D4D3200LQ4N12V
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  • $809.99 
32GB RAM Replacement for Hynix HMCG84MEBRA115N | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx4 Server Memory
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32GB RAM Replacement for Hynix HMCG84MEBRA115N | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx4 (EC8)
  • Model #: NE-PNR-1891
  •  
  • $827.63 
A-Tech 32GB 2Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
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A-Tech 32GB 2Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
  • Brand: A-Tech
  • Series: A-Tech DDR5 Server Memory RAM
  • Capacity: 32GB
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: AT32G1D5D5600UD8EC4N11V
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  • $849.99 
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32GB RAM Replacement for IBM-Lenovo 4X77A81438 | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx4 (EC8) Server Memory
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32GB RAM Replacement for IBM-Lenovo 4X77A81438 | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx4 (EC8) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx4 (EC8)
  • Model #: 5053772486751
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  • $827.63 
Supermicro Certified MEM-DR532MD-ER48 | Hynix HMCG88MEBRA | 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 | Hynix HMCG88MEBRA | 32GB PC5-38400 DDR5 4800MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8 (EC8)
  • Model #: MEM-DR532MD-ER48 HMCG88MEBRA
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  • $827.63 
32GB RAM Replacement for Dell W08W9 | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx8 (EC8) Server Memory
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32GB RAM Replacement for Dell W08W9 | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx8 (EC8) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 2Rx8 (EC8)
  • Model #: 5053772483132
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  • $931.08 
Supermicro Certified MEM-DR432L-HL01-ER21 | Hynix HMA84GR7MFR4N-TF | 32GB PC4-17000 DDR4 2133MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $123.91 
Supermicro Certified MEM-DR432L-HL01-ER24 | Hynix HMA84GR7MFR4N-UH | 32GB PC4-19200 DDR4 2400MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $127.40 
Supermicro Certified MEM-DR432L-HL02-ER32 | Hynix HMA84GR7DJR4N-XN | 32GB PC4-25600 DDR4 3200MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $377.17 
Supermicro Certified MEM-DR432LC-ER26 | Samsung M393A4K40BB2-CTD | 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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Supermicro Certified MEM-DR432LC-ER26 | Samsung M393A4K40BB2-CTD | 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM

OUT OF STOCK

  • Chipset: Samsung Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: MEM-DR432LC-ER26 M393A4K40BB2-CTD
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  • $169.45 
128GB RAM Replacement for Hynix HMABAGR7A4R4N-VN | DDR4 2666MHz PC4-21300 ECC RDIMM 2S4Rx4 (8Rx4 3DS/TSV) Server Memory
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128GB RAM Replacement for Hynix HMABAGR7A4R4N-VN | DDR4 2666MHz PC4-21300 ECC RDIMM 2S4Rx4 (8Rx4 3DS/TSV) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2S4Rx4 (8Rx4)
  • Model #: NE-PNR-1834
  •  
  • $714.99 
Supermicro Certified MEM-DR380L-SL01-ER16 | Samsung M393B1K70DH0-CK0 | 8GB PC3-12800 DDR3 1600MHz 2Rx4 Dual Rank ECC RDIMM Registered 240-Pin Server Memory RAM
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  • $19.51 
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Supermicro Certified MEM-DR380L-SL08-ER16 | Samsung M393B1G73QH0-YK0 | 8GB PC3-12800 DDR3 1600MHz 2Rx8 Dual Rank ECC RDIMM Registered 240-Pin Server Memory RAM
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  • $18.57 
  • Free Shipping
Supermicro Certified MEM-DR480L-HL02-ER21 | Hynix HMA41GR7AFR4N-TF | 8GB PC4-17000 DDR4 2133MHz 1Rx4 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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  • $65.99 
Kingston KTD-PE564D8-32G RAM Module - For Rack Server - 32 GB - DDR5-6400/PC5-51200 DDR5 SDRAM - 6400 MHz Dual-rank Memory - CL52 - 1.10 V - ECC - Registered - 288-pin - DIMM
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  • COMING SOON
8GB RAM Replacement for Kingston KSM26ES8/8HD, KSM26ES8/8MR, KTD-PE426E/8G, KTH-PL426E/8G, KTL-TS426E/8G | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
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  • $129.99 
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8GB RAM Replacement for IBM-Lenovo 00D5043, 00D5044, 00D5046, 03T7753, 0C19534, 46W0707, 46W0708, 47J0224 | DDR3 1600MHz PC3L-12800 ECC RDIMM 2Rx8 Server Memory
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  • $39.04 
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HPE P43328-B21 32GB DDR5 SDRAM Memory Module - For Server, Rack Server, Blade Server - 32 GB (1 x 32GB) - DDR5-4800/PC5-38400 DDR5 SDRAM - 4800 MHz Dual-rank Memory -1.10 V-Registered - 288-pin - DIMM
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  • COMING SOON
DELL 64GB DDR4 SDRAM Memory Module SNPP2MYXC64G
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DELL
DELL 64GB DDR4 SDRAM Memory Module SNPP2MYXC64G
  • CAS Latency: CL1.5
  • Type: 288-Pin DDR4 SDRAM
  • Model #: SNPP2MYXC64G

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