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SNPTP9W1C/16G - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC UDIMM
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SNPTP9W1C/16G - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC UDIMM
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Chipset: Major Brand Chipset
  • Buffered/Registered: Unregistered
  • Model #: SNPTP9W1C/16G
  •  
  • $159.45 
  • Free Shipping
865964-001 - HP Compatible 8GB PC4-17000 DDR4-2133MHz 2Rx8 1.2v Non-ECC SODIMM
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865964-001 - HP Compatible 8GB PC4-17000 DDR4-2133MHz 2Rx8 1.2v Non-ECC SODIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 865964-001
  •  
  • $74.45 
A-Tech 256GB (2x128GB) 2S4Rx4 (8Rx4 3DS) PC4-19200L DDR4 2400 MHz ECC LRDIMM Load Reduced DIMM 288-Pin Octal Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
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A-Tech 256GB (2x128GB) 2S4Rx4 (8Rx4 3DS) PC4-19200L DDR4 2400 MHz ECC LRDIMM Load Reduced DIMM 288-Pin Octal Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT128G2D4D2400LO4N12V
  •  
  • $1,363.98 
NEMIX RAM 32GB (1X32GB) DDR3 1866MHZ PC3-14900 4Rx4 1.5V 240-PIN ECC LRDIMM Compatible with Hynix HMT84GL7AMR4C-RD Load Reduced Server Memory
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NEMIX RAM 32GB (1X32GB) DDR3 1866MHZ PC3-14900 4Rx4 1.5V 240-PIN ECC LRDIMM Compatible with Hynix HMT84GL7AMR4C-RD Load Reduced Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Part Number: ML14900-344K1
  • Model #: ML14900-344K01-2392
  •  
  • $49.99 
  • Free Shipping
SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40BB2-CTD
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SAMSUNG
SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40BB2-CTD
  • CAS Latency: CL17
  • Timing: 17-17-17
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 3SA266619R5-32GPBOP-
1VRGY - Dell Compatible 8GB PC4-21300 DDR4-2666MHz 1Rx8 1.2V ECC Registered RDIMM
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1VRGY - Dell Compatible 8GB PC4-21300 DDR4-2666MHz 1Rx8 1.2V ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 1VRGY
  •  
  • $104.45 
  • Free Shipping
RIMLANCE 32GB(1x32GB) DDR4 3200MHz PC4-25600 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory
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RIMLANCE 32GB(1x32GB) DDR4 3200MHz PC4-25600 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Rank: 2Rx4
  • Model #: RRD25600D4C32
  •  
  • $179.00 
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NEMIX RAM 256GB (8X32GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R6515 Rack Server
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NEMIX RAM 256GB (8X32GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R6515 Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-324K8
  • Model #: MR25600-324K8-DPER6515
  •  
  • $2,990.49 
16GB DDR5 6400MHZ PC5-51200 CL52 1Rx8 1.1V 288-PIN ECC Registered RDIMM NEMIX RAM Server Memory Compatible with SuperMicro MEM-DR516MB-ER64
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16GB DDR5 6400MHZ PC5-51200 CL52 1Rx8 1.1V 288-PIN ECC Registered RDIMM NEMIX RAM Server Memory Compatible with SuperMicro MEM-DR516MB-ER64
  • Brand: NEMIX RAM
  • Capacity: 16GB
  • Speed: DDR5 6400 (PC5 51200)
  • ECC: Yes
  • Model #: MR51200-618K1-DR516MB-ER64-V27
  •  
  • $599.99 
  • Free Shipping
OWC 64GB Replacement for Micron MTA36ASF8G72PZ-3G2 - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
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OWC 64GB Replacement for Micron MTA36ASF8G72PZ-3G2 - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R464GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R464GB-B160-SF
  • $539.99
  •  
  • $499.99 
  • Save: 7%
Kingston 16GB DDR4 SoDIMM 260-pin DRAM Memory (KCP432SS8/16) KCP432SS816
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Kingston 16GB DDR4 SoDIMM 260-pin DRAM Memory (KCP432SS8/16) KCP432SS816
  • BIOS/Performance Profile: Intel XMP 2.0
  • Color: Green/Black
  • Model #: KCP432SS816
HMA82GS6JJR8N-VK SK hynix OEM 16GB 2Rx8 PC4-2666V Memory Module
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NEMIX RAM 32GB (2 x 16GB) DDR5 5200MHz PC5-41600 1Rx8 1.1V 288-PIN Non-ECC UDIMM Unbuffered Desktop PC Memory Kit
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NEMIX RAM 32GB (2 x 16GB) DDR5 5200MHz PC5-41600 1Rx8 1.1V 288-PIN Non-ECC UDIMM Unbuffered Desktop PC Memory Kit
  • Brand: NEMIX RAM
  • Capacity: 32GB (2 x 16GB)
  • Speed: DDR5 5200 (PC5 41600)
  • Buffered/Registered: Unbuffered
  • Model #: MD41600-618K2-SM-AS-1015A-MT-01-G2
  •  
  • $429.89 
  • Free Shipping
A-Tech 256GB (2x128GB) 2S2Rx4 (4Rx4 3DS) PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
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A-Tech 256GB (2x128GB) 2S2Rx4 (4Rx4 3DS) PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT128G2D5D4800RQ4EC8N11V
  •  
  • $7,979.98 
Samsung M386A8K40CM2-CVF DDR4-2933 64GB/4Gx4 ECC Load Reduced Server Memory
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SAMSUNG
Samsung M386A8K40CM2-CVF DDR4-2933 64GB/4Gx4 ECC Load Reduced Server Memory
  • Chipset: Samsung Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 4Rx4
  • Model #: 787-797717000333082
V-COLOR DDR5 128GB (32GBx4) 6800MHz CL34 2Gx8 2Rx8  OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA532G68D834Q)
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  •  
  • $5,149.99 
Micron 16GB Registered DDR4 3200 (PC4 25600) Server Memory Model MTA18ASF2G72P2J
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Micron 16GB Registered DDR4 3200 (PC4 25600) Server Memory Model MTA18ASF2G72P2J
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: MTA18ASF2G72P2J
Hynix HMA82GR7AFR8N-UH 16GB DDR4-2400 ECC REG DIMM
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Hynix HMA82GR7AFR8N-UH 16GB DDR4-2400 ECC REG DIMM
  • Type: 288-Pin DDR4 SDRAM
  • Model #: HMA82GR7AFR8N-UH
32GB RAM Replacement for HP P11444-091 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
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32GB RAM Replacement for HP P11444-091 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772484443
  • $389.85
  •  
  • $382.05 
G.SKILL G5 Neo Series 192GB (4 x 48GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G48GQ4-G5N
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G.SKILL
G.SKILL G5 Neo Series 192GB (4 x 48GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G48GQ4-G5N

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Neo Series
  • Capacity: 192GB (4 x 48GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G48GQ4-G5N
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 
Hynix HMA84GL7AMR4N-TF 32GB DDR4-2133 4Rx4 ECC LRDIMM Server Memory
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SK hynix
Hynix HMA84GL7AMR4N-TF 32GB DDR4-2133 4Rx4 ECC LRDIMM Server Memory
  • Voltage: 1.20V
  • ECC: Yes
  • Buffered/Registered: Load Reduced
  • Model #: 5c6-269991000321992
Supermicro Certified MEM-DR416L-CL01-ER21 Micron 16GB DDR4-2133 2Rx4 ECC REG RoHS Memory
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Supermicro Certified MEM-DR416L-CL01-ER21 Micron 16GB DDR4-2133 2Rx4 ECC REG RoHS Memory
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: MEM-DR416L-CL01-ER21
  • $74.72
  •  
  • $72.48 
Hynix HMA81GS6JJR8N-VK
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Hynix HMA81GS6JJR8N-VK
  • Brand: Hynix
  • Capacity: 8GB
  • Speed: 2666
  • ECC: NON
  • Model #: HMA81GS6JJR8N-VK
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL06-ER26 Registered Server Memory
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NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL06-ER26 Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-628K1
  • Model #: MR21300-628K01-261
  •  
  • $134.95 
  • Free Shipping
A-Tech 32GB 1Rx4 PC5-44800R DDR5 5600 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
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A-Tech 32GB 1Rx4 PC5-44800R DDR5 5600 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL46
  • Voltage: 1.10V
  • Rank: 1Rx4
  • Model #: AT32G1D5D5600RS4EC8N11V
  •  
  • $933.68 
Samsung 128GB 4Rx4 DDR5 RDIMM- 4800MT/s (M321RAGA0B20-CWKZJ)
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SAMSUNG
Refurbished Samsung 128GB 4Rx4 DDR5 RDIMM- 4800MT/s (M321RAGA0B20-CWKZJ)
  • Brand: SAMSUNG
  • Capacity: Does Not Apply
  • Model: 370-AGZM, 9JTGP, AC448843, AC449974, AC517142, JN9K1, M321RAGA0B20-CWKZJ, MMWR9, SNPMMWR9C/128G, SNPMMWR9C/128GVXR16G
  • Model #: 011110011039
  •  
  • $3,999.00 
M393A2K43DB3-CWE Samsung 16GB PC4-25600 DDR4-3200MHz ECC Reg Dual Rank Memory
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SAMSUNG
Refurbished M393A2K43DB3-CWE Samsung 16GB PC4-25600 DDR4-3200MHz ECC Reg Dual Rank Memory
  • CAS Latency: CL22
  • Rank: Dual Rank
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: M393A2K43DB3-CWE-REF
NEMIX RAM 32GB (4X8GB) DDR4 2933MHZ PC4-23400 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 32GB (4X8GB) DDR4 2933MHZ PC4-23400 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Part Number: MR23400-818K4
  • Model #: MR23400-818K04-G
  •  
  • $376.99 
  • Free Shipping
CPC7G - Dell Compatible 32GB PC4-19200 DDR4-2400Mhz 2Rx4 1.2v Registered RDIMM
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CPC7G - Dell Compatible 32GB PC4-19200 DDR4-2400Mhz 2Rx4 1.2v Registered RDIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: CPC7G
  •  
  • $229.45 
  • Free Shipping
NEMIX RAM 64GB (8X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R750 Rack Server
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NEMIX RAM 64GB (8X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R750 Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-818K8
  • Model #: MR25600-818K8-PE750R
  •  
  • $769.99 
OWC 256GB (4x64GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 256GB (4x64GB) 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: 3R2D42R4256S
  • Model #: OWC3R2D42R4256S
  •  
  • $1,991.96 
Supermicro Certified MEM-DR432MD-ER32 | Micron MTA18ASF4G72PDZ-3G2F1 | 32GB PC4-25600 DDR4 3200MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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Supermicro Certified MEM-DR432MD-ER32 | Micron MTA18ASF4G72PDZ-3G2F1 | 32GB PC4-25600 DDR4 3200MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Micron Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: MEM-DR432MD-ER32 MTA18ASF4G72PDZ-3G2F1
  • $339.82
  •  
  • $326.36 

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