• 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:
16GB RAM Replacement for Hynix HMA42GL7MFR4N-TF | DDR4 2133MHz PC4-17000 ECC LRDIMM 2Rx4 Server Memory
Quick View
16GB RAM Replacement for Hynix HMA42GL7MFR4N-TF | DDR4 2133MHz PC4-17000 ECC LRDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772479715
  •  
  • $119.99 
  • Free Shipping
8GB RAM Replacement for Samsung M393A1K43DB1-CWE, M393A1K43DB2-CWE | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx8 Server Memory
Quick View
8GB RAM Replacement for Samsung M393A1K43DB1-CWE, M393A1K43DB2-CWE | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772478688
  •  
  • $129.99 
  • Free Shipping
16GB RAM Replacement for IBM-Lenovo 78P4889 | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx4 Server Memory
Quick View
16GB RAM Replacement for IBM-Lenovo 78P4889 | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: 5053772485822
  •  
  • $153.80 
  • Free Shipping
8GB RAM Replacement for Hynix HMA81GU7DJR8N-XN, HMAG68EXNEA | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
Quick View
8GB RAM Replacement for Hynix HMA81GU7DJR8N-XN, HMAG68EXNEA | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1861
  •  
  • $144.99 
  • Free Shipping
16GB RAM Replacement for Hynix HMA82GR7CJR4N-WM, HMA82GR7DJR4N-WM, HMA82GR7JJR4N-WM | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx4 Server Memory
Quick View
  •  
  • $229.99 
  • Free Shipping
16GB RAM Replacement for Micron MTA18ASF2G72PZ-3G2E2, MTA18ASF2G72PZ-3G2R1 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
Quick View
  •  
  • $274.99 
  • Free Shipping
A-Tech 32GB 2Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
Quick View
A-Tech 32GB 2Rx8 PC4-25600R DDR4 3200 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: AT32G1D4D3200RD8N12V
  •  
  • $516.52 
  • Free Shipping
32GB RAM Replacement for Micron MT72KSZS4G72LZ-1G4E2A7 | DDR3 1333MHz PC3-10600 ECC LRDIMM 4Rx4 Server Memory
Quick View
32GB RAM Replacement for Micron MT72KSZS4G72LZ-1G4E2A7 | DDR3 1333MHz PC3-10600 ECC LRDIMM 4Rx4 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 4Rx4
  • Model #: NE-PNR-2044
  •  
  • $64.99 
  • Free Shipping
Supermicro Certified MEM-DR332L-SL03-LR16 | Samsung 32GB PC3-12800 DDR3 1600MHz 4Rx4 Quad Rank ECC LRDIMM Load Reduced 240-Pin Server Memory RAM
Quick View
  •  
  • $64.99 
  • Free Shipping
32GB RAM Replacement for Samsung M386B4G70BM0-CMA, M386B4G70DM0-CMA | DDR3 1866MHz PC3-14900 ECC LRDIMM 4Rx4 Server Memory
Quick View
32GB RAM Replacement for Samsung M386B4G70BM0-CMA, M386B4G70DM0-CMA | DDR3 1866MHz PC3-14900 ECC LRDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 4Rx4
  • Model #: 5053772478442
  •  
  • $68.35 
  • Free Shipping
32GB RAM Replacement for Hynix HMT84GR7MMR4C-G7 | DDR3 1066MHz PC3-8500 ECC RDIMM 4Rx4 Server Memory
Quick View
32GB RAM Replacement for Hynix HMT84GR7MMR4C-G7 | DDR3 1066MHz PC3-8500 ECC RDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL3
  • Voltage: 1.50V
  • Rank: 4Rx4
  • Model #: NE-PNR-1822
  •  
  • $64.99 
  • Free Shipping
4GB RAM Replacement for Micron MTA9ASF51272PZ-2G3, MTA9ASF51272PZ-2G3A2, MTA9ASF51272PZ-2G3B1 | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
Quick View
  •  
  • $25.29 
  • Free Shipping
8GB RAM Replacement for Micron MTA9ASF1G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx8 Server Memory
Quick View
8GB RAM Replacement for Micron MTA9ASF1G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479906
  •  
  • $129.99 
  • Free Shipping
8GB RAM Replacement for IBM-Lenovo 4X70S69155, 4X70Z50946, 4ZC7A08696 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
Quick View
8GB RAM Replacement for IBM-Lenovo 4X70S69155, 4X70Z50946, 4ZC7A08696 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772486546
  •  
  • $129.99 
  • Free Shipping
8GB RAM Replacement for Micron MTA9ASF1G72PZ-2G9 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
Quick View
8GB RAM Replacement for Micron MTA9ASF1G72PZ-2G9 | DDR4 2933MHz PC4-23400 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479890
  •  
  • $119.99 
  • Free Shipping
A-Tech 32GB 1Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
Quick View
A-Tech 32GB 1Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Single Module
  • Model #: AT32G1D4D2933RS4N12V
  •  
  • $455.19 
A-Tech 32GB (2x16GB) 2Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 32GB (2x16GB) 2Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT16G2D4D2400RD8N12V
  •  
  • $307.61 
  • Free Shipping
Samsung DDR4 2400 32GB LRDIMM M386A4G40DM1-CRC D Server Memory, Original
Quick View
SAMSUNG
Samsung DDR4 2400 32GB LRDIMM M386A4G40DM1-CRC D Server Memory, Original
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 4Rx4
  • Model #: M386A4G40DM1-CRC
16GB RAM Replacement for Samsung M393A2K40DB2-CWE, M393A2K40DB3-CWE | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
Quick View
16GB RAM Replacement for Samsung M393A2K40DB2-CWE, M393A2K40DB3-CWE | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: 5053772478558
  •  
  • $274.99 
  • Free Shipping
16GB RAM Replacement for Hynix HMA82GU7DJR8N-XN | DDR4 3200MHz PC4-25600 ECC UDIMM 2Rx8 Server Memory
Quick View
16GB RAM Replacement for Hynix HMA82GU7DJR8N-XN | DDR4 3200MHz PC4-25600 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: NE-PNR-1879
  •  
  • $239.99 
  • Free Shipping
16GB RAM Replacement for Samsung M391A2G43BB2-CWE | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
Quick View
16GB RAM Replacement for Samsung M391A2G43BB2-CWE | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479562
  •  
  • $239.99 
  • Free Shipping
16GB RAM Replacement for Samsung M391A2K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC UDIMM 2Rx8 Server Memory
Quick View
16GB RAM Replacement for Samsung M391A2K43DB1-CVF | DDR4 2933MHz PC4-23400 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772479555
  •  
  • $239.99 
  • Free Shipping
16GB RAM Replacement for Hynix HMAA2GU7CJR8N-XN | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
Quick View
16GB RAM Replacement for Hynix HMAA2GU7CJR8N-XN | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1857
  •  
  • $239.99 
  • Free Shipping
4GB RAM Replacement for IBM-Lenovo 4X70G00092 | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
Quick View
4GB RAM Replacement for IBM-Lenovo 4X70G00092 | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772485457
  •  
  • $26.60 
  • Free Shipping
16GB RAM Replacement for Cisco UCS-MKIT-164RX-D, 15-13255-01 | DDR3 1333MHz PC3-10600 ECC RDIMM 4Rx4 Server Memory
Quick View
16GB RAM Replacement for Cisco UCS-MKIT-164RX-D, 15-13255-01 | DDR3 1333MHz PC3-10600 ECC RDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 4Rx4
  • Model #: NE-PNR-1566
  •  
  • $39.99 
  • Free Shipping
16GB RAM Replacement for Dell 1V1N1 | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
Quick View
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
  •  
  • $508.19 
  • Free Shipping
16GB RAM Replacement for HP 805349-S21, 809082-091, 809082-591, 843313-S21, 861109-001 | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx4 Server Memory
Quick View
  •  
  • $153.80 
  • Free Shipping
4GB RAM Replacement for Hynix HMA451U7AFR8N-UH | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
Quick View
4GB RAM Replacement for Hynix HMA451U7AFR8N-UH | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772480117
  •  
  • $41.56 
  • Free Shipping
A-Tech 32GB 2Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
Quick View
A-Tech 32GB 2Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Single Module
  • Model #: AT32G1D4D2933RD8N12V
  •  
  • $455.19 
Supermicro Certified MEM-DR432L-HL03-ER26 | Hynix 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
Quick View
Supermicro Certified MEM-DR432L-HL03-ER26 | Hynix 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: MEM-DR432L-HL03-ER26
  •  
  • $259.91 
A-Tech 32GB (2x16GB) 1Rx4 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
Quick View
A-Tech 32GB (2x16GB) 1Rx4 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT16G2D4D2400RS4N12V
  •  
  • $307.61 
  • Free Shipping
Kingston 16GB DDR4 SDRAM Memory Module - 16 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM -  KTH-PL426D8/16G
Quick View
  • COMING SOON
Kingston 16GB 260-Pin DDR4 SO-DIMM ECC Unbuffered DDR4 2666 (PC4 21300) Server Memory Model KTH-PN426E/16G
Quick View
Kingston 16GB 260-Pin DDR4 SO-DIMM ECC Unbuffered DDR4 2666 (PC4 21300) Server Memory Model KTH-PN426E/16G
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 260-Pin DDR4 SO-DIMM
  • Rank: 2Rx8
  • Model #: KTH-PN426E/16G
16GB RAM Replacement for Micron MTA18ASF2G72PZ-3G2, MTA9ASF2G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
Quick View
16GB RAM Replacement for Micron MTA18ASF2G72PZ-3G2, MTA9ASF2G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx4
  • Model #: 5053772478329
  •  
  • $274.99 
  • Free Shipping
16GB RAM Replacement for Micron MTA9ASF2G72AZ-3G2B1, MTA9ASF2G72AZ-3G2F1 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
Quick View
16GB RAM Replacement for Micron MTA9ASF2G72AZ-3G2B1, MTA9ASF2G72AZ-3G2F1 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-2118
  •  
  • $239.99 
  • 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:

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