• 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:
01AG819 - Lenovo Compatible 8GB PC4-17000 DDR4-2133MHz 2Rx8 1.2V ECC SODIMM
Quick View
01AG819 - Lenovo Compatible 8GB PC4-17000 DDR4-2133MHz 2Rx8 1.2V ECC SODIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: 01AG819
  •  
  • $94.45 
  • Free Shipping
Kingston KSM56E46BD8KM-48HM RAM Module - 48 GB - DDR5-5600/PC5-44800 DDR5 SDRAM - 5600 MHz Dual-rank Memory - CL46 - 1.10 V - ECC - Unbuffered - 288-pin - DIMM
Quick View
  • COMING SOON
NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-16GDR4ECT0-RD-2400 NAS Registered Server Memory
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC RDIMM Compatible with QNAP RAM-16GDR4ECT0-RD-2400 NAS Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: MR19200-628K1
  • Model #: MR19200-628K1-QN-RAM-16GDR4ECT0-RD-2400
  •  
  • $98.88 
Hynix HMAA8GL7CPR4N-WM 64GB DDR4-2933 PC4-23400 1.2V LRDIMM Server Memory
Quick View
SK hynix
Hynix HMAA8GL7CPR4N-WM 64GB DDR4-2933 PC4-23400 1.2V LRDIMM Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: HMAA8GL7CPR4N-WM
NEMIX RAM 32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN ECC Unbuffered SODIMM KIT Workstation, NAS Memory
Quick View
NEMIX RAM 32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN ECC Unbuffered SODIMM KIT Workstation, NAS Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MSE21300-628K2
  • Model #: 0759170864010
  •  
  • $313.89 
  • Free Shipping
OWC 32GB (2x16GB) Replacement for Synology D4RD-2666-16G, D4ER01-16G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation FS3400, FS3410, FS3600
Quick View
  •  
  • $269.19 
OWC 256GB (8x32GB) DDR5 5600 PC5-44800 CL46 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
Quick View
OWC 256GB (8x32GB) DDR5 5600 PC5-44800 CL46 2Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
  • Brand: OWC
  • Capacity: 256GB (8 x 32GB)
  • Speed: DDR5 5600 (PC5 44800)
  • ECC: Yes
  • Model #: OWC5R6D52R8256K-B973-SF
  •  
  • $8,755.92 
A-Tech 256GB (8x32GB) 4Rx4 PC3L-10600L DDR3 / DDR3L 1333 MHz ECC LRDIMM 1.35V Load Reduced DIMM 240-Pin Quad Rank x4 Low Voltage Server RAM Memory Upgrade Kit
Quick View
  •  
  • $562.47 
  • Free Shipping
NEMIX RAM 64GB (8X8GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Apple Mac Pro Rack 2020 MacPro 7,1
Quick View
NEMIX RAM 64GB (8X8GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Apple Mac Pro Rack 2020 MacPro 7,1
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-828K8
  • Model #: 0759170863488
  •  
  • $555.49 
  • Free Shipping
A-Tech 8GB 1Rx4 PC4-17000 DDR4 2133 ECC REG RDIMM Registered DIMM 288-Pin Single Rank x4 Server RAM Memory Module
Quick View
A-Tech 8GB 1Rx4 PC4-17000 DDR4 2133 ECC REG RDIMM Registered DIMM 288-Pin Single Rank x4 Server RAM Memory Module
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx4
  • Model #: AT8G1D4D2133RS4N12V
  •  
  • $59.39 
  • Free Shipping
Supermicro Certified MEM-DR416LA-ER26 | Samsung M393A2K40BB2-CTD | 16GB PC4-21300 DDR4 2666MHz 1Rx4 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
Quick View
Supermicro Certified MEM-DR416LA-ER26 | Samsung M393A2K40BB2-CTD | 16GB PC4-21300 DDR4 2666MHz 1Rx4 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Samsung Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: MEM-DR416LA-ER26 M393A2K40BB2-CTD
  •  
  • $175.49 
32GB RAM Replacement for Hynix HMCG88AEBRA, HMCG88AEBRA115N, HMCG88MEBRA, HMCG88MEBRA107N, HMCG88MEBRA110N | DDR5 4800MHz PC5-38400 ECC RDIMM 2Rx8 Server Memory
Quick View
  •  
  • $931.08 
A-Tech 256GB (2x128GB) 2S2Rx4 (4Rx4 3DS) PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 256GB (2x128GB) 2S2Rx4 (4Rx4 3DS) PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT128G2D4D2933RQ4N12V
  •  
  • $2,519.98 
  • Free Shipping
SAMSUNG 32GB 288-Pin DDR4 SDRAM Registered DDR4 2400 (PC4 19200) Memory (Server Memory) Model M393A4K40CB1-CRC
Quick View
Samsung M393A4K40BB1-CRC 32GB DDR4-2400 LP ECC REG Server Memory
Quick View
SAMSUNG
Samsung M393A4K40BB1-CRC 32GB DDR4-2400 LP ECC REG Server Memory
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M393A4K40BB1-DUP
SAMS M393A4K40DB3-CWE DDR4-3200 32GB/4Gx72 ECC/REG Server Memory
Quick View
SAMSUNG
SAMS M393A4K40DB3-CWE DDR4-3200 32GB/4Gx72 ECC/REG Server Memory
  • Accessory Type: Parts
  • Model #: SAMS-M393A4K40DB3-CWE
Crucial 32GB DDR4 3200 (PC4-25600) RDIMM CL22 Server Memory Module
Quick View
Crucial 32GB DDR4 3200 (PC4-25600) RDIMM CL22 Server Memory Module
  • Chipset: Micron Chipset
  • CAS Latency: CL22
  • Timing: 22-22-22
  • Voltage: 1.20V
  • Model #: MTA36ASF4G72PZ-3G2J3
8GB RAM Replacement for Crucial CT8G4RFS4213 | DDR4 2133MHz PC4-17000 ECC RDIMM 1Rx4 Server Memory
Quick View
8GB RAM Replacement for Crucial CT8G4RFS4213 | DDR4 2133MHz PC4-17000 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: NE-PNR-1632
  •  
  • $59.39 
  • Free Shipping
P64339-B21 - HPE Compatible 32GB PC5-38400 DDR5-4800Mhz 2Rx8 non-ECC UDIMM
Quick View
P64339-B21 - HPE Compatible 32GB PC5-38400 DDR5-4800Mhz 2Rx8 non-ECC UDIMM
  • Chipset: Major Brand Chipset
  • Parts: 5 Years
  • Model #: P64339-B21
  •  
  • $1,259.45 
  • Free Shipping
370-AEVQ - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
Quick View
370-AEVQ - Dell Compatible 16GB PC4-25600 DDR4-3200Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: 370-AEVQ
  •  
  • $239.45 
  • Free Shipping
4GB RAM Replacement for Samsung M391B5273CH0-YH9, M391B5273DH0-YH9 | DDR3 1333MHz PC3L-10600 ECC UDIMM 2Rx8 Server Memory
Quick View
4GB RAM Replacement for Samsung M391B5273CH0-YH9, M391B5273DH0-YH9 | DDR3 1333MHz PC3L-10600 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 2Rx8
  • Model #: 5053772478480
  •  
  • $26.60 
  • Free Shipping
Supermicro Certified MEM-DR464L-SL01-LR24 | Samsung M386A8K40BM1-CRC | 64GB PC4-19200 DDR4 2400MHz 4Rx4 Quad Rank ECC LRDIMM Load Reduced 288-Pin Server Memory RAM
Quick View
  •  
  • $240.79 
TEAMGROUP CTCMD596G6000HC32AQC01 T-Create Master 96GB kits(24GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL32 1.4V One-rank Server Memory HYNIX IC
Quick View
Team Group
TEAMGROUP CTCMD596G6000HC32AQC01 T-Create Master 96GB kits(24GBx4) DDR5 6000 (PC5-48000) Overclock ECC RDIMM CL32 1.4V One-rank Server Memory HYNIX IC

OUT OF STOCK

  • Brand: Team
  • Series: T-Create Master
  • Capacity: 96GB (4 x 24GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: CTCMD596G6000HC32AQC01
  •  
  • $2,379.99 
  • Free Shipping
NEMIX RAM 128GB (2X64GB) DDR5 5600MHZ PC5-44800 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
NEMIX RAM 128GB (2X64GB) 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: 128GB (2 x 64GB)
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: MR44800-924K2-G
  •  
  • $4,598.99 
NEMIX RAM 64GB (2X32GB) DDR3 1600MHZ PC3-12800 4Rx4 1.35V 240-PIN ECC LRDIMM Load Reduced Server Memory KIT
Quick View
NEMIX RAM 64GB (2X32GB) DDR3 1600MHZ PC3-12800 4Rx4 1.35V 240-PIN ECC LRDIMM Load Reduced Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Part Number: ML12800-344LK2
  • Model #: ML12800-344LK02-132
  •  
  • $99.89 
  • Free Shipping
SAMSUNG 8GB ECC Registered DDR4 2400 (PC4 19200) Server Memory Model M393A1G40DB1-CRC
Quick View
SAMSUNG
SAMSUNG 8GB ECC Registered DDR4 2400 (PC4 19200) Server Memory Model M393A1G40DB1-CRC
  • CAS Latency: CL17
  • Timing: 17-17-17
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: M393A1G40DB1-CRC
  •  
  • $76.93 
  • Free Shipping
NEMIX RAM 8GB (1X8GB) DDR4 2933MHZ PC4-23400 1Rx8 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA81GR7CJR8N-WM Registered Server Memory
Quick View
NEMIX RAM 8GB (1X8GB) DDR4 2933MHZ PC4-23400 1Rx8 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA81GR7CJR8N-WM Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Part Number: MR23400-818K1
  • Model #: MR23400-818K01-2465
  •  
  • $94.99 
  • Free Shipping
NEMIX RAM 192GB (2X96GB) DDR5 5600MHZ PC5-44800 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT
Quick View
NEMIX RAM 192GB (2X96GB) 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: 192GB (2 x 96GB)
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: MR44800-9624K2-G
  •  
  • $6,398.99 
A9781929 - Dell Compatible 32GB PC4-21300 DDR4-2666Mhz 2Rx4 1.2v Registered RDIMM
Quick View
A9781929 - Dell Compatible 32GB PC4-21300 DDR4-2666Mhz 2Rx4 1.2v Registered RDIMM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: A9781929
  •  
  • $219.45 
  • Free Shipping
6VDNY - Dell Compatible 8GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v ECC Registered RDIMM
Quick View
6VDNY - Dell Compatible 8GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: 6VDNY
  •  
  • $144.45 
  • Free Shipping
OWC 16GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
Quick View
OWC 16GB DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Part Number: 3R2D42R416GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC3R2D42R416GB
  •  
  • $139.00 
OWC 256GB (8x32GB) DDR5 5200 PC5-41600 CL42 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
Quick View
OWC 256GB (8x32GB) DDR5 5200 PC5-41600 CL42 2Rx4 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers
  • Brand: OWC
  • Capacity: 256GB (8 x 32GB)
  • Speed: DDR5 5200 (PC5 41600)
  • ECC: Yes
  • Model #: OWC5R2D52R4256K-B968-SF
  •  
  • $8,755.92 
G.SKILL G5 Series 64GB (4 x 16GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G16GQ4-G5
Quick View
G.SKILL
G.SKILL G5 Series 64GB (4 x 16GB) ECC Registered DDR5 6000 (PC5 48000) Server Memory Model F5-6000R3036G16GQ4-G5

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Series
  • Capacity: 64GB (4 x 16GB)
  • Speed: DDR5 6000 (PC5 48000)
  • Model #: F5-6000R3036G16GQ4-G5
  •  
  • $2,549.99 
  • Free Shipping
G.SKILL G5 Series 128GB (8 x 16GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G16GE8-G5
Quick View
G.SKILL
G.SKILL G5 Series 128GB (8 x 16GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G16GE8-G5

OUT OF STOCK

  • Brand: G.SKILL
  • Series: G5 Series
  • Capacity: 128GB (8 x 16GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G16GE8-G5
  •  
  • $5,899.99 
  • 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