• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
  • Combo Deals Only
Brands
Show More
Price
Show More
Speed
Type
Show More
Capacity
Show More
CAS Latency
Show More
Voltage
Show More
ECC
Buffered/Registered
Sold by
All Top Brands
Availability
Condition
Total Capacity
Current Promotion
Discount
Useful Links
Customer Ratings
  • NVIDIA AI SUPERCOMPUTE
  • Featured Brands

    See Deals from SupermicroSee Deals from CrucialSee Deals from SAMSUNGSee Deals from G.SKILLSee Deals from Corsair
Sort By:
View:
A-Tech 64GB (4x16GB) 1Rx8 PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 64GB (4x16GB) 1Rx8 PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT16G4D5D4800RS8EC8N11V
  •  
  • $2,012.43 
A-Tech 256GB (4x64GB) 2Rx4 PC5-44800R DDR5 5600 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 256GB (4x64GB) 2Rx4 PC5-44800R DDR5 5600 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL46
  • Voltage: 1.10V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT64G4D5D5600RD4EC8N11V
  •  
  • $7,954.47 
V-COLOR DDR5 128GB (32GBx4) 6000MHz CL32 2Gx8 2Rx8 OC R-DIMM (Overclocking ECC Registered DIMM) 1.25V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA532G60S432Q)
Quick View
  •  
  • $4,699.99 
AB371022 - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v 260-Pin DDR4 SO-DIMM
Quick View
AB371022 - 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 #: AB371022
  •  
  • $149.45 
  • Free Shipping
Samsung 16GB ECC DDR4 2666MHz PC4-21300 1.2V 2Rx8 288-Pin ECC UDIMM Server RAM Memory Module M391A2K43BB1-CTD
Quick View
Samsung 16GB ECC DDR4 2666MHz PC4-21300 1.2V 2Rx8 288-Pin ECC UDIMM Server RAM Memory Module M391A2K43BB1-CTD
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: M391A2K43BB1-CTD-SM
NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
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
Hynix HMA81GU7CJR8N-VK 8GB DDR4-2666 ECC UDIMM
Quick View
SK hynix
Hynix HMA81GU7CJR8N-VK 8GB DDR4-2666 ECC UDIMM
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: HMA81GU7CJR8N-VK
  •  
  • $119.99 
  • Free Shipping
NEMIX RAM 16GB (1X16GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL01-ER21
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL01-ER21
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Part Number: MR17000-624K1
  • Model #: MR17000-624K01-325
  •  
  • $99.99 
  • Free Shipping
NEMIX RAM 128GB (4X32GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 260-PIN ECC SODIMM KIT
Quick View
NEMIX RAM 128GB (4X32GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 260-PIN ECC SODIMM KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MSE25600-328K4
  • Model #: 0759170883936
  •  
  • $1,195.00 
  • Free Shipping
V-COLOR DDR5 128GB (16GBx8) 4800MHz CL40 2Gx8 1Rx8 ECC R-DIMM (ECC Registered DIMM) 1.1V Memory Ram for Server and Workstations with Hynix IC (TR516G48S840O)
Quick View
V-color
V-COLOR DDR5 128GB (16GBx8) 4800MHz CL40 2Gx8 1Rx8 ECC R-DIMM (ECC Registered DIMM) 1.1V Memory Ram for Server and Workstations with Hynix IC (TR516G48S840O)
  • Brand: V-Color
  • Series: STANDARD ECC R-DIMM
  • Capacity: 128GB (8 x 16GB)
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: TR516G48S840O
  •  
  • $4,259.99 
  • $30.00 Shipping
A-Tech 32GB 1Rx4 PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
Quick View
A-Tech 32GB 1Rx4 PC5-38400R DDR5 4800 MHz EC8 RDIMM ECC Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx4
  • Model #: AT32G1D5D4800RS4EC8N11V
  •  
  • $827.63 
NEMIX RAM 32GB (4X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC UDIMM Unbuffered Memory KIT
Quick View
NEMIX RAM 32GB (4X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC UDIMM Unbuffered Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Part Number: ME12800-828LK4
  • Model #: ME12800-828LK04-371
  •  
  • $115.89 
  • Free Shipping
V-COLOR DDR5 64GB (16GBx4) 6400MHz CL32 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA516G64S832Q)
Quick View
V-COLOR DDR5 64GB (16GBx4) 6400MHz CL32 OC R-DIMM (Overclocking ECC Registered DIMM) 1.4V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA516G64S832Q)
  • Brand: V-Color
  • Series: OC R-DIMM
  • Capacity: 64GB (4 x 16GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: TRA516G64S832Q
  •  
  • $2,549.99 
  • $20.00 Shipping
A-Tech 64GB (8x8GB) 1Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 64GB (8x8GB) 1Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: AT8G8D4D3200RS8N12V
  •  
  • $910.99 
  • Free Shipping
ADATA XPG AICORE 32GB (2 x 16GB) ECC Registered DDR5 7200 (PC5 57600) Memory Model AX5R7200C3416G-DTAIRBK
Quick View
ADATA XPG AICORE 32GB (2 x 16GB) ECC Registered DDR5 7200 (PC5 57600) Memory Model AX5R7200C3416G-DTAIRBK
  • Brand: XPG
  • Series: AICORE
  • Capacity: 32GB (2 x 16GB)
  • Speed: DDR5 7200 (PC5 57600)
  • Model #: AX5R7200C3416G-DTAIRBK
  •  
  • $839.99 
  • Free Shipping
TEAMGROUP CTCMD5128G6000HC30FQC01 T-Create Master 128GB kits(32GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL30 1.4V Dual-rank Server Memory HYNIX IC
Quick View
Team Group
TEAMGROUP CTCMD5128G6000HC30FQC01 T-Create Master 128GB kits(32GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL30 1.4V Dual-rank Server Memory HYNIX IC
  • Brand: Team
  • Series: T-Create Master
  • Capacity: 128GB (4 x 32GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: CTCMD5128G6000HC30FQC01
TEAMGROUP CTCMD564G6000HC32AQC01 T-Create Master 64GB kits(16GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL32 1.4V One-rank Server Memory HYNIX IC
Quick View
Team Group
TEAMGROUP CTCMD564G6000HC32AQC01 T-Create Master 64GB kits(16GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL32 1.4V One-rank Server Memory HYNIX IC
  • Brand: Team
  • Series: T-Create Master
  • Capacity: 64GB (4 x 16GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: CTCMD564G6000HC32AQC01
  •  
  • $1,949.99 
  • Free Shipping
A-Tech 8GB 2Rx8 PC3-12800E DDR3 1600 MHz ECC UDIMM 1.5V ECC Unbuffered DIMM 240-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
Quick View
  •  
  • $47.91 
  • Free Shipping
Supermicro Certified MEM-DR416LD-ER32 | Samsung M393A2K43EB3-CWE | 16GB PC4-25600 DDR4 3200MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
Quick View
Supermicro Certified MEM-DR416LD-ER32 | Samsung M393A2K43EB3-CWE | 16GB PC4-25600 DDR4 3200MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Samsung Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: MEM-DR416LD-ER32 M393A2K43EB3-CWE
  •  
  • $195.61 
MICRON MTA36ASF8G72PZ-2G9B2 64GB 2933MHz PC4-23400 ECC REGISTERED 2Rx4 Server Memory Module
Quick View
MICRON MTA36ASF8G72PZ-2G9B2 64GB 2933MHz PC4-23400 ECC REGISTERED 2Rx4 Server Memory Module
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: MTA36ASF8G72PZ-2G9B2
  •  
  • $490.16 
NEMIX RAM 16GB (2 x 8GB) DDR4 2666MHz PC4-21300 1Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
Quick View
NEMIX RAM 16GB (2 x 8GB) DDR4 2666MHz PC4-21300 1Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
  • Brand: NEMIX RAM
  • Capacity: 16GB (2 x 8GB)
  • Speed: DDR4 2666 (PC4 21300)
  • ECC: Yes
  • Model #: ME21300-818K2-SM-SYS-5019C-M
  •  
  • $139.89 
  • Free Shipping
NEMIX RAM 512GB (8X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
NEMIX RAM 512GB (8X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-924K8
  • Model #: MR25600-924K8-G
  •  
  • $4,273.89 
NEMIX RAM 128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge 7615 Server
Quick View
NEMIX RAM 128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge 7615 Server
  • Brand: NEMIX RAM
  • Series: Dell Series Server Memory
  • Capacity: 128GB (2 x 64GB)
  • Speed: DDR5 4800 (PC5 38400)
  • Model #: MR38400-924K2-DLPE7615
  •  
  • $3,658.99 
  • Free Shipping
OWC 64GB Replacement for Synology D4ER01-64G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation NAS SA6400
Quick View
OWC 64GB Replacement for Synology D4ER01-64G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation NAS SA6400
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R464GB
  • Type: 288-Pin DDR4 SDRAM
  • Model #: OWC2R6D42R464GB-ZBK-SF
  •  
  • $499.99 
16GB RAM Replacement for Samsung M321R2GA3BB6-CQK | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
Quick View
16GB RAM Replacement for Samsung M321R2GA3BB6-CQK | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Rank: 1Rx8
  • Model #: 5053772479098
  •  
  • $503.11 
V-COLOR 128GB (64GBx2) DDR5 6400MHz CL60 1.1V ECC Registered RDIMM Server/Workstation Memory with Hynix IC (TR564G64D460K)
Quick View
V-color
V-COLOR 128GB (64GBx2) DDR5 6400MHz CL60 1.1V ECC Registered RDIMM Server/Workstation Memory with Hynix IC (TR564G64D460K)
  • Brand: V-Color
  • Series: ECC RDIMM
  • Capacity: 128GB (2 x 64GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: TR564G64D460K
  •  
  • $3,999.99 
  • Free Shipping
NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory
Quick View
NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-944K1
  • Model #: 0759170863938
  •  
  • $315.00 
  • Free Shipping
A-Tech 32GB (4x8GB) 4Rx8 PC3-8500R DDR3 1066 MHz ECC RDIMM 1.5V Registered DIMM 240-Pin Quad Rank x8 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 32GB (4x8GB) 4Rx8 PC3-8500R DDR3 1066 MHz ECC RDIMM 1.5V Registered DIMM 240-Pin Quad Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL7
  • Voltage: 1.50V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT8G4D3D1066RQ8N15V
  •  
  • $78.08 
  • Free Shipping
RIMLANCE 32GB(2X16GB) DDR4 2666MHz PC4-21300 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT
Quick View
in 30 days
RIMLANCE 32GB(2X16GB) DDR4 2666MHz PC4-21300 2RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT

Limited time offer, ends 06/24

  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: RRD21300D4C2K32
  •  
  • $169.00 
  • Free Shipping
Samsung - M393A8G40MB2-CVF - Samsung 64GB DDR4 SDRAM Memory Module - For Server - 64 GB (1 x 64 GB) -
Quick View
SAMSUNG
Samsung - M393A8G40MB2-CVF - Samsung 64GB DDR4 SDRAM Memory Module - For Server - 64 GB (1 x 64 GB) -
  • Chipset: Samsung Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M393A8G40MB2-CVF
Supermicro Certified MEM-DR412LF-LR26 | Micron MTA144ASQ16G72LSZ-2S6E1 | 128GB PC4-21300 DDR4 2666MHz 2S4Rx4 (8Rx4) 3DS/TSV Octal Rank ECC LRDIMM Load Reduced 288-Pin Server Memory RAM
Quick View
  •  
  • $862.97 
Kingston 16GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KTH-PL421/16G
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN ECC Unbuffered SODIMM Workstation Memory Compatible with Supermicro MEM-DR416L-CL01-ES26
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN ECC Unbuffered SODIMM Workstation Memory Compatible with Supermicro MEM-DR416L-CL01-ES26
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MSE21300-628K1
  • Model #: MSE21300-628K01-427
  •  
  • $157.26 
  • 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