• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
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
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:
OWC 256GB (4x64GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
Quick View
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
  •  
  • $2,151.32 
P48500-001 - HPE Compatible 32GB PC5-38400 DDR5-4800Mhz 1Rx4 ECC Registered RDIMM
Quick View
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
  • $699.45
  •  
  • $694.45 
OWC 32GB Replacement for Samsung M321R4GA3BB0-CQK M321R4GA3BB6-CQK - DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade
Quick View
  •  
  • $1,099.99 
SNPDK8NXC/16G - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v Non-288-Pin DDR4 SDRAM
Quick View
SNPDK8NXC/16G - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v Non-288-Pin DDR4 SDRAM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: SNPDK8NXC/16G
  •  
  • $149.45 
NEMIX RAM 64GB (8X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
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 
900853 - Dell Compatible 16GB PC4-17000 DDR4-2133Mhz 2Rx8 1.2v Non-ECC SODIMM
Quick View
900853 - Dell Compatible 16GB 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 #: 900853
  •  
  • $74.95 
NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-628K1
  • Model #: MR25600-628K1-G
  •  
  • $159.99 
OWC 16GB Replacement for Samsung M321R2GA3BB6-CQK - DDR5 4800 PC5-38400 CL40 1Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade
Quick View
  •  
  • $529.99 
G.SKILL G5 Neo Series 128GB (8 x 16GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G16GE8-G5N
Quick View
G.SKILL
G.SKILL G5 Neo Series 128GB (8 x 16GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G16GE8-G5N

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Neo Series
  • Capacity: 128GB (8 x 16GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G16GE8-G5N
  •  
  • $5,099.99 
  • Free Shipping
NEMIX RAM 64GB (2X32GB) DDR5 5600MHZ PC5-44800 1.1V 2Rx8 288-PIN ECC Unbuffered UDIMM KIT
Quick View
NEMIX RAM 64GB (2X32GB) DDR5 5600MHZ PC5-44800 1.1V 2Rx8 288-PIN ECC Unbuffered UDIMM KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL42
  • Voltage: 1.10V
  • Part Number: ME44800-328K2X
  • Model #: ME44800-328K2-GX
  •  
  • $1,454.99 
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
OWC 32GB DDR5 5600 PC5-44800 CL46 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade for Select Workstations or Servers
Quick View
OWC 32GB DDR5 5600 PC5-44800 CL46 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade for Select Workstations or Servers
  • Brand: OWC
  • Capacity: 32GB
  • Speed: DDR5 5600 (PC5 44800)
  • ECC: Yes
  • Model #: OWC5R6D52R832GB-B973-SF
  •  
  • $1,099.99 
A-Tech 32GB (2x16GB) 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 32GB (2x16GB) 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: Dual Channel Kit
  • Model #: AT16G2D5D4800RS8EC8N11V
  •  
  • $1,016.38 
  • Free Shipping
M393A1K43BB1-CTD6Q Samsung 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
Quick View
SAMSUNG
M393A1K43BB1-CTD6Q Samsung 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M393A1K43BB1-CTD6Q
SNPDFK3YC/16G - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2RX8 1.2v ECC Registered RDIMM
Quick View
in 30 days
SNPDFK3YC/16G - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2RX8 1.2v ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: SNPDFK3YC/16G
  • $159.45
  •  
  • $154.45 
Hynix HMA81GU7AFR8N-UH  8GB DDR4-2400 ECC UDIMM
Quick View
Black Diamond Memory 64GB (2 x 32GB) ECC Registered DDR4 2133 (PC4 17000) Server Memory Model BD32GX22133MQR26
Quick View
  •  
  • $499.99 
  • Free Shipping
V-COLOR DDR5 256GB (32GBx8) 5600MHz CL46 4Gx4 1Rx4 ECC R-DIMM (ECC Registered DIMM) 1.1V Memory Ram for Server and Workstations with Hynix IC (TR532G56S446O)
Quick View
V-color
V-COLOR DDR5 256GB (32GBx8) 5600MHz CL46 4Gx4 1Rx4 ECC R-DIMM (ECC Registered DIMM) 1.1V Memory Ram for Server and Workstations with Hynix IC (TR532G56S446O)
  • Brand: V-Color
  • Series: STANDARD ECC R-DIMM
  • Capacity: 256GB (8 x 32GB)
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: TR532G56S446O
  •  
  • $8,339.99 
  • $30.00 Shipping
Samsung DDR4 2133MHzCL15 32GB (PC4 2133) Internal Memory M386A4G40DM0-CPB
Quick View
SAMSUNG
Samsung DDR4 2133MHzCL15 32GB (PC4 2133) Internal Memory M386A4G40DM0-CPB
  • CAS Latency: CL15
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 107938
Kingston - KSM26SED8/16ME - Kingston 16GB DDR4 SDRAM Memory Module - 16 GB - DDR4-2666/PC4-2666 DDR4 SDRAM - CL19 - 1.20
Quick View
Kingston - KSM26SED8/16ME - Kingston 16GB DDR4 SDRAM Memory Module - 16 GB - DDR4-2666/PC4-2666 DDR4 SDRAM - CL19 - 1.20
  • CAS Latency: CL19
  • Timing: 19-19-19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: KSM26SED8/16ME
P8XPW - Dell Compatible 32GB PC5-44800 DDR5-5600Mhz 2Rx8 ECC Registered RDIMM
Quick View
P8XPW - Dell Compatible 32GB PC5-44800 DDR5-5600Mhz 2Rx8 ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • Parts: 5 Years
  • Model #: P8XPW
  •  
  • $1,494.45 
NEMIX RAM 8GB (1X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R650xs Rack Server
Quick View
NEMIX RAM 8GB (1X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R650xs Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-818K1
  • Model #: MR25600-818K1-DLPER650XS
  •  
  • $98.99 
Crucial  CT16G4RFD4213 16GB  288-Pin DDR4 2133 Server Memory
Quick View
in 30 days
Crucial CT16G4RFD4213 16GB 288-Pin DDR4 2133 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: CT16G4RFD4213
OWC 32GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM - 1.2V - 288-pin Memory RAM Upgrade for Server (OWC3R2D42R432GB)
Quick View
OWC 32GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM - 1.2V - 288-pin Memory RAM Upgrade for Server (OWC3R2D42R432GB)
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R432GB
NEMIX RAM 16GB (1X16GB) DDR4 2933MHZ PC4-23400 1Rx4 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA82GR7CJR4N-WM Registered Server Memory
Quick View
in 30 days
NEMIX RAM 16GB (1X16GB) DDR4 2933MHZ PC4-23400 1Rx4 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA82GR7CJR4N-WM Registered Server Memory
  • Part Number: MR23400-614K1
  • Type: 288-Pin DDR4 RDIMM
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Model #: MR23400-614K01-2320
  •  
  • $159.99 
  • Free Shipping
16GB RAM Replacement for Synology D4EC-2666-16G | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
Quick View
16GB RAM Replacement for Synology D4EC-2666-16G | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772488977
  •  
  • $231.99 
  • Free Shipping
A-Tech 128GB (4x32GB) 2Rx4 PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 128GB (4x32GB) 2Rx4 PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT32G4D4D2666RD4N12V
  • $923.36
  •  
  • $877.19 
  • Save: 5%
RIMLANCE RAM 256GB(8X32GB) DDR4 3200MHz PC4-25600 2Rx4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT Compatible with Dell PowerEdge XR11 Rack Server
Quick View
RIMLANCE RAM 256GB(8X32GB) DDR4 3200MHz PC4-25600 2Rx4 1.2V 288-PIN ECC Registered RDIMM Server Memory KIT Compatible with Dell PowerEdge XR11 Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: RRD25600D4C8K256
  • Model #: RRD25600D4C8K256-XR11
  • $2,312.00
  •  
  • $1,990.00 
  • Save: 13%
  • Free Shipping
DK8NX - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 Non-ECC UDIMM
Quick View
DK8NX - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 1Rx8 Non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Parts: 5 Years
  • Model #: DK8NX
  • $154.45
  •  
  • $149.45 
NEMIX RAM 256GB (4X64GB) DDR5 5600MHZ PC5-44800 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
NEMIX RAM 256GB (4X64GB) DDR5 5600MHZ PC5-44800 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Brand: NEMIX RAM
  • Series: NEMIX RAM Original Series Memory
  • Capacity: 256GB (4 x 64GB)
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: MR44800-924K4-G
  •  
  • $9,196.99 
SAMSUNG RAM 8GB Replacement for Samsung M393A1K43DB2-CWE DDR4-3200 ECC RDIMM 1Rx8
Quick View
SAMSUNG
SAMSUNG RAM 8GB Replacement for Samsung M393A1K43DB2-CWE DDR4-3200 ECC RDIMM 1Rx8
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: skuwu18

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:

Thomas
6/14/2022 1:17:58 PM
Works great in a consumer build

“ Additionally there is no overclocking or other BIOS changes required by this server memory. ”

Micron DDR4-3200 32GB/4Gx72 ECC CL22 Server Memory