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HMA84GR7JJR4N-VK HYNIX 32GB DDR4 2666V RDIMM 2Rx4 CL19 PC4-21300 1.2V 288-PIN SDRAM MODULE (SERVER ONLY)
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SK hynix
HMA84GR7JJR4N-VK HYNIX 32GB DDR4 2666V RDIMM 2Rx4 CL19 PC4-21300 1.2V 288-PIN SDRAM MODULE (SERVER ONLY)
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: HMA84GR7JJR4N-VK
Kingston ValueRAM 32GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KVR21R15D4/32
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Kingston ValueRAM 32GB ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KVR21R15D4/32
  • CAS Latency: CL15
  • Timing: 15-15-15
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: KVR21R15D4/32
Crucial/MICRON MTA36ASF2G72PZ-2G6B1 16GB ECC Registered 2Rx4 PC4 DDR4-2666 Server Memory CT16G4RFD4266
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Crucial/MICRON MTA36ASF2G72PZ-2G6B1 16GB ECC Registered 2Rx4 PC4 DDR4-2666 Server Memory CT16G4RFD4266
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: MTA36ASF2G72PZ-2G6B1
SAMSUNG M471B5173Qh0-Yk0  Memory Module-M471B5173Qh0-Yk0
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V-COLOR DDR5 256GB (64GBx4) 6000MHz CL34 4Gx4 2Rx4 OC R-DIMM (Overclocking ECC Registered DIMM) 1.25V Memory Ram for TRX50 Workstation (AMD EXPO) (TRA564G60D434Q)
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  •  
  • $10,319.99 
  • Free Shipping
32GB RAM Replacement for Micron MTA36ASF4G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
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32GB RAM Replacement for Micron MTA36ASF4G72PZ-3G2 | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: 5053772479364
  •  
  • $560.99 
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell Precision Workstation 7865
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell Precision Workstation 7865
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-628K1
  • Model #: MR25600-628K1-DL-PW7865
  •  
  • $159.99 
Rimlance 32GB (1X32GB) 1.2V DDR4 3200MHz PC4-25600 ECC UDIMM 2RX8
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Rimlance 32GB (1X32GB) 1.2V DDR4 3200MHz PC4-25600 ECC UDIMM 2RX8
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: REU25600D8C32
  •  
  • $258.00 
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Samsung M393A2K43BB1-CTD7Q
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SAMSUNG
Samsung M393A2K43BB1-CTD7Q
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: M393A2K43BB1-CTD7Q
  •  
  • $174.23 
OWC 512GB (8x64GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 512GB (8x64GB) 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: 3R2D42R4512K
  • Model #: OWC3R2D42R4512K
  •  
  • $4,298.32 
Team T-Create Master 128GB (8 x 16GB) 288-Pin PC RAM DDR5 6400 (PC5 51200) Desktop Memory Model CTCMD5128G6400HC32AOC01
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Team Group
Team T-Create Master 128GB (8 x 16GB) 288-Pin PC RAM DDR5 6400 (PC5 51200) Desktop Memory Model CTCMD5128G6400HC32AOC01

OUT OF STOCK

  • CAS Latency: CL32
  • Voltage: 1.40V
  • Timing: 32-39-39-84
  • Brand: Team
  • Model #: CTCMD5128G6400HC32AOC01
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  • $3,869.99 
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4GB RAM Replacement for Synology RAMEC1600DDR3-4GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Synology RAMEC1600DDR3-4GBX2 | DDR3 1600MHz PC3-12800 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772488885
  •  
  • $26.60 
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-2G6E1 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-2G6E1 | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-2077
  •  
  • $129.99 
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A-Tech 64GB (8x8GB) 1Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (8x8GB) 1Rx8 PC4-19200R DDR4 2400 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: AT8G8D4D2400RS8N12V
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  • $515.63 
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Hynix HMAA8GL7AMR4N-UH 1 x 64GB PC4-19200 2.4GHz DDR4-2400 Memory Module
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SK hynix
Hynix HMAA8GL7AMR4N-UH 1 x 64GB PC4-19200 2.4GHz DDR4-2400 Memory Module
  • Voltage: 1.20V
  • Rank: 4Rx4
  • Model #: HMAA8GL7AMR4N-UH-TJ
840758-691 - HPE Compatible 32GB PC4-21300 DDR4-2666Mhz 2Rx4 1.2v ECC Registered RDIMM
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840758-691 - HPE Compatible 32GB PC4-21300 DDR4-2666Mhz 2Rx4 1.2v ECC Registered RDIMM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Model #: 840758-691
  •  
  • $289.45 
NEMIX RAM 256GB (4X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 256GB (4X64GB) DDR5 4800MHZ PC5-38400 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 4800 (PC5 38400)
  • Model #: MR38400-924K4-G
  •  
  • $7,596.99 
G.SKILL G5 Neo Series 128GB (4 x 32GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G32GQ4-G5N
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G.SKILL
G.SKILL G5 Neo Series 128GB (4 x 32GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model F5-6400R3239G32GQ4-G5N
  • Brand: G.SKILL
  • Series: G5 Neo Series
  • Capacity: 128GB (4 x 32GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: F5-6400R3239G32GQ4-G5N
A-Tech 16GB (4x4GB) 1Rx8 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (4x4GB) 1Rx8 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT4G4D4D2133RS8N12V
  •  
  • $101.15 
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400E DDR4 2933 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400E DDR4 2933 MHz ECC UDIMM Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT8G2D4D2933ES8N12V
  •  
  • $269.98 
  • Free Shipping
Crucial 32GB DDR4 2666 (PC4-21300) SDRAM Server Memory ECC Registered
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Crucial 32GB DDR4 2666 (PC4-21300) SDRAM Server Memory ECC Registered
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: CT32G4RFD4266
32GB RAM Replacement for Micron MTA18ASF4G72AZ-3G2, MTA18ASF4G72AZ-3G2F1, MTA18ADF4G72AZ-3G2B3, MTA18ADF4G72AZ-3G2F1 | DDR4 3200MHz PC4-25600 ECC UDIMM 2Rx8 Server Memory
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  • $372.59 
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Micron 16GB 288-Pin DDR4 SDRAM ECC Registered DDR4 2666 (PC4 21300) Server Memory Model MTA18ASF2G72PDZ-2G6J
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Micron 16GB 288-Pin DDR4 SDRAM ECC Registered DDR4 2666 (PC4 21300) Server Memory Model MTA18ASF2G72PDZ-2G6J
  • CAS Latency: CL19
  • Timing: 19-19-19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: Dual-rank
  • Model #: MTA18ASF2G72PDZ-2G6J
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-
NEMIX RAM 64GB (2X32GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge FC830 Server
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NEMIX RAM 64GB (2X32GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge FC830 Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL15
  • Voltage: 1.35V
  • Part Number: MR17000-324K2
  • Model #: MR17000-324K2-DL-PEFC830
  •  
  • $419.89 
NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Compatible with Supermicro MEM-DR416LD-EU32
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM Compatible with Supermicro MEM-DR416LD-EU32
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: ME25600-628K1
  • Model #: MEM-DR416LD-EU32
  •  
  • $169.88 
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A-Tech 64GB (2x32GB) 2Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (2x32GB) 2Rx8 PC5-44800E DDR5 PC5-44800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Brand: A-Tech
  • Series: A-Tech DDR5 Server Memory RAM
  • Capacity: 64GB (2 x 32GB)
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: AT32G2D5D5600UD8EC4N11V
  •  
  • $1,699.98 
  • Free Shipping
A-Tech 256GB (4x64GB) 2Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 256GB (4x64GB) 2Rx4 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Dual Rank x4 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL21
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT64G4D4D2933RD4N12V
  •  
  • $3,211.96 
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Kingston ValueRAM 2GB ECC DDR2 800 (PC2 6400) Server Memory Model KVR800D2E6/2G
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Kingston ValueRAM 2GB ECC DDR2 800 (PC2 6400) Server Memory Model KVR800D2E6/2G
  • CAS Latency: CL6
  • Voltage: 1.80V
  • Type: 240-Pin DDR2 SDRAM
  • Parts: Lifetime limited
  • Model #: KVR800D2E6/2G
  • $19.95
  •  
  • $14.95 
  • Save: 25%
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NEMIX RAM 128GB (4X32GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 260-PIN ECC SODIMM KIT
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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
  •  
  • $1,277.89 
  • Free Shipping
NEMIX RAM 64GB (1X64GB) DDR3 1600MHZ PC3-12800 8Rx4 1.35V 240-PIN ECC LRDIMM Load Reduced Server Memory
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NEMIX RAM 64GB (1X64GB) DDR3 1600MHZ PC3-12800 8Rx4 1.35V 240-PIN ECC LRDIMM Load Reduced Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Part Number: ML12800-984LK1
  • Model #: ML12800-984LK01-39
  •  
  • $159.99 
  • Free Shipping
NEMIX RAM 512GB (16X32GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 512GB (16X32GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-324K16
  • Model #: MR21300-324K16-G1
  •  
  • $3,906.49 
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64GB RAM Replacement for Hynix HMAA8GL7AMR4N-VK, HMAA8GL7CPR4N-VK | DDR4 2666MHz PC4-21300 ECC LRDIMM 4Rx4 Server Memory
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64GB RAM Replacement for Hynix HMAA8GL7AMR4N-VK, HMAA8GL7CPR4N-VK | DDR4 2666MHz PC4-21300 ECC LRDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 4Rx4
  • Model #: 5053772478787
  •  
  • $435.90 

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