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4GB RAM Replacement for Hynix HMT451U7AFR8C-RD, HMT451U7BFR8C-RD, HMT451U7DFR8C-RD | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Hynix HMT451U7AFR8C-RD, HMT451U7BFR8C-RD, HMT451U7DFR8C-RD | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772477834
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  • $26.60 
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8GB RAM Replacement for Kingston KVR13E9/8HM | DDR3 1333MHz PC3-10600 ECC RDIMM 2Rx8 Server Memory
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8GB RAM Replacement for Kingston KVR13E9/8HM | DDR3 1333MHz PC3-10600 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.50V
  • Rank: 2Rx8
  • Model #: 5053772487642
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  • $39.04 
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4GB RAM Replacement for Kingston KTH-PL316S8/4G, KVR16R11S8/4, KVR16R11S8/4EF | DDR3 1600MHz PC3-12800 ECC RDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Kingston KTH-PL316S8/4G, KVR16R11S8/4, KVR16R11S8/4EF | DDR3 1600MHz PC3-12800 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772487215
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  • $29.30 
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A-Tech 64GB (8x8GB) 1Rx4 PC3-14900R DDR3 1866 MHz ECC RDIMM 1.5V Registered DIMM 240-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
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  • $171.72 
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8GB RAM Replacement for Kingston KVR24E17S8/8 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Kingston KVR24E17S8/8 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1968
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  • $92.39 
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A-Tech 32GB 2Rx4 PC4-23400 DDR4 2933 ECC REG RDIMM Registered DIMM 288-Pin Dual Rank x4 Server RAM Memory Module
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A-Tech 32GB 2Rx4 PC4-23400 DDR4 2933 ECC REG RDIMM Registered DIMM 288-Pin Dual Rank x4 Server RAM Memory Module
  • Chipset: Major Brand Chipset
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx4
  • Parts: Lifetime
  • Model #: AT32G1D4D2933RD4N12V
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  • $428.44 
A-Tech 16GB 1Rx4 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
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A-Tech 16GB 1Rx4 PC4-17000R DDR4 2133 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Module
  • Chipset: Major Brand Chipset
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Multi-channel Kit: Single Module
  • Model #: AT16G1D4D2133RS4N12V
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  • $139.47 
UCS-ML-X64G4RS-H 64GB for CISCO UCS C-Series C240 M5 by SAMSUNG RAM Model of M386A8K40BM2-CTD
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SAMSUNG
UCS-ML-X64G4RS-H 64GB for CISCO UCS C-Series C240 M5 by SAMSUNG RAM Model of M386A8K40BM2-CTD
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: FN844
Black Diamond Memory 16GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model BD16G2666MQR26
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  • $699.99 
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16GB RAM Replacement for Crucial CT16G4RFD4266 | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx4 Server Memory
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16GB RAM Replacement for Crucial CT16G4RFD4266 | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: NE-PNR-1629
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  • $159.86 
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16GB RAM Replacement for Dell A5816816, A5816823, A6996789 | DDR3 1333MHz PC3-10600 ECC RDIMM 2Rx4 Server Memory
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16GB RAM Replacement for Dell A5816816, A5816823, A6996789 | DDR3 1333MHz PC3-10600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.50V
  • Rank: 2Rx4
  • Model #: 5053772481381
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  • $39.99 
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4GB RAM Replacement for Samsung M393B5173QH0-YK0 | DDR3 1600MHz PC3L-12800 ECC RDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Samsung M393B5173QH0-YK0 | DDR3 1600MHz PC3L-12800 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Rank: 1Rx8
  • Model #: 5053772479470
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  • $29.30 
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4GB RAM Replacement for Dell A2626076, A3965765, A4051430, A4188257 | DDR3 1333MHz PC3L-10600 ECC RDIMM 2Rx4 Server Memory
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4GB RAM Replacement for Dell A2626076, A3965765, A4051430, A4188257 | DDR3 1333MHz PC3L-10600 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 2Rx4
  • Model #: 5053772481633
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  • $29.30 
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Kingston 64GB DDR5 4800 ECC Registered DIMM Memory- Replacement MfrP# KSM48R40BD4-64HA Item# 20-242-881
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Kingston 64GB DDR5 4800 ECC Registered DIMM Memory- Replacement MfrP# KSM48R40BD4-64HA Item# 20-242-881

OUT OF STOCK

  • CAS Latency: CL40
  • Timing: 40-39-39
  • Voltage: 1.10V
  • Type: 288-PIN DDR5 R-DIMM
  • Model #: KSM48R40BD4TMM-64HMR
  • COMING SOON
8GB RAM Replacement for Kingston KVR1333D3LQ8R9S/8G | DDR3 1333MHz PC3L-10600 ECC RDIMM 4Rx8 Server Memory
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8GB RAM Replacement for Kingston KVR1333D3LQ8R9S/8G | DDR3 1333MHz PC3L-10600 ECC RDIMM 4Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Rank: 4Rx8
  • Model #: 5053772487659
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  • $39.04 
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4GB RAM Replacement for Kingston KVR16R11D8/4 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
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4GB RAM Replacement for Kingston KVR16R11D8/4 | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.50V
  • Rank: 2Rx8
  • Model #: 5053772487222
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  • $29.30 
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16GB RAM Replacement for Kingston KSM24ED8/16ME | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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16GB RAM Replacement for Kingston KSM24ED8/16ME | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: NE-PNR-1961
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  • $197.99 
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8GB RAM Replacement for Kingston KSM24ES8/8ME | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Kingston KSM24ES8/8ME | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772488694
  •  
  • $142.56 
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4GB RAM Replacement for Kingston KVR24E17S8/4 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Kingston KVR24E17S8/4 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1965
  •  
  • $38.81 
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Supermicro Certified MEM-DR380L-SL04-ER16 | Samsung 8GB PC3-12800 DDR3 1600MHz 1Rx4 Single Rank ECC RDIMM Registered 240-Pin Server Memory RAM
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  • $19.51 
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8GB RAM Replacement for IBM-Lenovo 4X77A77494 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for IBM-Lenovo 4X77A77494 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772486560
  •  
  • $144.99 
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16GB RAM Replacement for Micron MTA18ADF2G72AZ-2G3, MTA18ASF2G72AZ-2G3, MTA18ASF2G72AZ-2G3B1 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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  • $197.99 
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8GB RAM Replacement for Samsung M391A1K43DB2-CWE | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Samsung M391A1K43DB2-CWE | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772479791
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  • $144.99 
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32GB RAM Replacement for Samsung M386A4K40BB0-CRC4Q | DDR4 2400MHz PC4-19200 ECC LRDIMM 2Rx4 Server Memory
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32GB RAM Replacement for Samsung M386A4K40BB0-CRC4Q | DDR4 2400MHz PC4-19200 ECC LRDIMM 2Rx4 Server Memory
  • Chipset: Samsung Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: NE-PNR-2204
  •  
  • $199.99 
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16GB RAM Replacement for HP 934798-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
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16GB RAM Replacement for HP 934798-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: NE-PNR-1740
  •  
  • $197.99 
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8GB RAM Replacement for HP 934797-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for HP 934797-001 | DDR4 2400MHz PC4-19200 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-1751
  •  
  • $92.39 
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32GB RAM Replacement for HP 773081-001 | DDR3 1866MHz PC3-14900 ECC LRDIMM 4Rx4 Server Memory
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32GB RAM Replacement for HP 773081-001 | DDR3 1866MHz PC3-14900 ECC LRDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 4Rx4
  • Model #: NE-PNR-1757
  •  
  • $64.99 
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8GB RAM Replacement for Hynix HMT41GR7AFR4C-RD, HMT41GR7BFR4C-RD, HMT41GR7DFR4C-RD | DDR3 1866MHz PC3-14900 ECC RDIMM 1Rx4 Server Memory
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8GB RAM Replacement for Hynix HMT41GR7AFR4C-RD, HMT41GR7BFR4C-RD, HMT41GR7DFR4C-RD | DDR3 1866MHz PC3-14900 ECC RDIMM 1Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 1Rx4
  • Model #: 5053772477896
  •  
  • $39.04 
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4GB RAM Replacement for HP 733036-581, E2Q91AA | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for HP 733036-581, E2Q91AA | DDR3 1866MHz PC3-14900 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 1Rx8
  • Model #: 5053772483606
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  • $26.60 
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32GB RAM Replacement for Hynix HMT84GL7AMR4C-RD, HMT84GL7BMR4C-RD, HMT84GL7DMR4C-RD | DDR3 1866MHz PC3-14900 ECC LRDIMM 4Rx4 Server Memory
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  • $68.35 
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4GB RAM Replacement for IBM-Lenovo 00D5011, 03T7802, 0C19499 | DDR3 1600MHz PC3L-12800 ECC UDIMM 1Rx8 Server Memory
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4GB RAM Replacement for IBM-Lenovo 00D5011, 03T7802, 0C19499 | DDR3 1600MHz PC3L-12800 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Rank: 1Rx8
  • Model #: 5053772485426
  •  
  • $26.60 
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32GB RAM Replacement for Hynix HMAA4GR7AJR8N-XN, HMAA4GR7CJR8N-XN | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx8 Server Memory
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32GB RAM Replacement for Hynix HMAA4GR7AJR8N-XN, HMAA4GR7CJR8N-XN | DDR4 3200MHz PC4-25600 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772478848
  •  
  • $538.99 
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 16GB (2x8GB) 1Rx8 PC4-23400R DDR4 2933 MHz ECC RDIMM Registered 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 #: AT8G2D4D2933RS8N12V
  •  
  • $219.73 
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32GB RAM Replacement for Samsung M391A4G43MB1-CTD | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
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32GB RAM Replacement for Samsung M391A4G43MB1-CTD | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772479500
  •  
  • $358.79 
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-3G2E2 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
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8GB RAM Replacement for Micron MTA9ASF1G72AZ-3G2E2 | DDR4 3200MHz PC4-25600 ECC UDIMM 1Rx8 Server Memory
  • Chipset: Micron Chipset
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: NE-PNR-2122
  •  
  • $144.99 
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4GB RAM Replacement for Hynix HMA451R7AFR8N-UH, HMA451R7MFR8N-UH | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
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4GB RAM Replacement for Hynix HMA451R7AFR8N-UH, HMA451R7MFR8N-UH | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Rank: 1Rx8
  • Model #: 5053772478978
  •  
  • $25.29 
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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