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Cisco UCS B420 M4 Memory Upgrades ✓­ Guaranteed Compatible

Make & ModelCisco UCS B420 M4
Total Memory Slots48
Maximum Memory3TB

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Have a question about your Cisco UCS B420 M4 memory upgrade? Our technical support can help you with any question to ensure you get the best module option for your Cisco UCS B420 M4 system.

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Get proven Cisco UCS B420 M4 memory upgrades here. We ship approved, certified and OEM qualified modules to ensure total Cisco UCS B420 M4 system memory reliability.

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Replacement

Nothing is perfect. Sometimes things happen. If your Cisco UCS B420 M4 memory upgrade fails at anytime–we will ship a replacement same day. We support your Cisco UCS B420 M4 memory purchase long after the sale.

Meet the increasing demands of your applications with more Cisco UCS B420 M4 memory.
Expand system performance with an upgrade at lower costs today!

DIMM Type    Speed    Configuration Guide    Lifetime WarrantyLifetime WarrantyLifetime WarrantyLifetime Warranty
Never worry. We support you long after the sale. If any module ever fails–we will replace at zero cost to you!

Showing 1–50 of 63 results

Part # Part Number Made By Capacity Speed Form Factor Price
HX-ML-X64G4RS-H
HX‐ML‐X64G4RS‐H
Memory for Cisco UCS B420 M4
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 268 Buy Now
UCS-ML-X64G4RS-H
UCS‐ML‐X64G4RS‐H
Memory for Cisco UCS B420 M4
Original Replacement 1x 64GB DDR4-2666 LRDIMM $ 268 Buy Now
HX-MR-1X322RV-A
HX‐MR‐1X322RV‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
HX-SP-M32-RVA
HX‐SP‐M32‐RVA
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
UCS-MR-1X322RV-A
UCS‐MR‐1X322RV‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
UCS-MR-1X322RVA-RF
UCS‐MR‐1X322RVA‐RF
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
UCS-MR-1X322RVA-S
UCS‐MR‐1X322RVA‐S
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
UCS-MR-1X161RV-A
UCS‐MR‐1X161RV‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
UCS-MR-1X161RV-G
UCS‐MR‐1X161RV‐G
Memory for Cisco UCS B420 M4
Original Replacement 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
UCS-ML-1X644RV-A
UCS‐ML‐1X644RV‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 64GB DDR4-2400 LRDIMM $ 248 Buy Now
UCS-ML-1X324RV-A
UCS‐ML‐1X324RV‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2400 LRDIMM $ 98 Buy Now
UCS-MR-1X648RU-A
UCS‐MR‐1X648RU‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 64GB DDR4-2133 RDIMM Request For Quote
UCS-MR-1X322RU-A
UCS‐MR‐1X322RU‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
UCS-MR-1X322RU-G
UCS‐MR‐1X322RU‐G
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
UCS-MR-1X322RUA-RF
UCS‐MR‐1X322RUA‐RF
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
UCS-SPL-M32G
UCS‐SPL‐M32G
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
UCS-SPM-M32-RUA
UCS‐SPM‐M32‐RUA
Memory for Cisco UCS B420 M4
Original Replacement 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
UCS-MR-1X162RU-A
UCS‐MR‐1X162RU‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 16GB DDR4-2133 RDIMM $ 34 Buy Now
UCS-MR-1X162RU-G
UCS‐MR‐1X162RU‐G
Memory for Cisco UCS B420 M4
Original Replacement 1x 16GB DDR4-2133 RDIMM $ 34 Buy Now
UCS-MR-1X081RU-A
UCS‐MR‐1X081RU‐A
Memory for Cisco UCS B420 M4
Original Replacement 1x 8GB DDR4-2133 RDIMM $ 28 Buy Now
UCS-MR-1X081RU-G
UCS‐MR‐1X081RU‐G
Memory for Cisco UCS B420 M4
Original Replacement 1x 8GB DDR4-2133 RDIMM $ 28 Buy Now
M386A8K40BM2-CTD
M386A8K40BM2‐CTD
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 288 Buy Now
M386A8K40CM2-CTD
M386A8K40CM2‐CTD
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 288 Buy Now
M386A8K40DM2-CTD
M386A8K40DM2‐CTD
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 348 Buy Now
M393A4K40BB1-CRC
M393A4K40BB1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
M393A4K40CB1-CRC
M393A4K40CB1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
M393A2K40BB1-CRC
M393A2K40BB1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
M393A2K40CB1-CRC
M393A2K40CB1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
M386A8K40BM1-CRC
M386A8K40BM1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2400 LRDIMM $ 248 Buy Now
M386A8K40CM2-CRC
M386A8K40CM2‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2400 LRDIMM Request For Quote
M386A4G40DM1-CRC
M386A4G40DM1‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 32GB DDR4-2400 LRDIMM $ 98 Buy Now
M386A4G40EM2-CRC
M386A4G40EM2‐CRC
Memory for Cisco UCS B420 M4
SAMSUNG 1x 32GB DDR4-2400 LRDIMM Request For Quote
M393A8G40D40-CRB
M393A8G40D40‐CRB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 64GB DDR4-2133 RDIMM $ 328 Buy Now
M393A4K40BB0-CPB
M393A4K40BB0‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 32GB DDR4-2133 RDIMM $ 72 Buy Now
M393A2G40DB0-CPB
M393A2G40DB0‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 16GB DDR4-2133 RDIMM $ 34 Buy Now
M393A2G40EB1-CPB
M393A2G40EB1‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 16GB DDR4-2133 RDIMM $ 34 Buy Now
M393A2K40BB0-CPB
M393A2K40BB0‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 16GB DDR4-2133 RDIMM Request For Quote
M393A1G40DB0-CPB
M393A1G40DB0‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 8GB DDR4-2133 RDIMM $ 28 Buy Now
M393A1G40EB1-CPB
M393A1G40EB1‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 8GB DDR4-2133 RDIMM $ 28 Buy Now
M393A1K43BB0-CPB
M393A1K43BB0‐CPB
Memory for Cisco UCS B420 M4
SAMSUNG 1x 8GB DDR4-2133 RDIMM Request For Quote
HMAA8GL7AMR4N-VK
HMAA8GL7AMR4N‐VK
Memory for Cisco UCS B420 M4
SK HYNIX 1x 64GB DDR4-2666 LRDIMM $ 268 Buy Now
HMAA8GL7CPR4N-VK
HMAA8GL7CPR4N‐VK
Memory for Cisco UCS B420 M4
SK HYNIX 1x 64GB DDR4-2666 LRDIMM $ 268 Buy Now
HMA84GR7AFR4N-UH
HMA84GR7AFR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 32GB DDR4-2400 RDIMM $ 88 Buy Now
HMA84GR7MFR4N-UH
HMA84GR7MFR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 32GB DDR4-2400 RDIMM $ 92 Buy Now
HMA82GR7AFR4N-UH
HMA82GR7AFR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
HMA82GR7CJR4N-UH
HMA82GR7CJR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 16GB DDR4-2400 RDIMM Request For Quote
HMA82GR7MFR4N-UH
HMA82GR7MFR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 16GB DDR4-2400 RDIMM $ 54 Buy Now
HMAA8GL7AMR4N-UH
HMAA8GL7AMR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 64GB DDR4-2400 LRDIMM $ 248 Buy Now
HMAA8GL7MMR4N-UH
HMAA8GL7MMR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 64GB DDR4-2400 LRDIMM $ 228 Buy Now
HMA84GL7AMR4N-UH
HMA84GL7AMR4N‐UH
Memory for Cisco UCS B420 M4
SK HYNIX 1x 32GB DDR4-2400 LRDIMM Request For Quote

Learn more about Cisco UCS B420 M4 memory

What Cisco UCS B420 M4 DIMM type is supported?

LRDIMM and RDIMM

Why are there various DIMM types supported?

Factory configured B420 M4 systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What is a registered memory module?

Registered DIMM memory modules have a register component between the DRAM modules and the motherboard memory controller. When manufactured as a dual in-line memory module (DIMM), a registered memory module is called an RDIMM.

What is a load reduced memory module?

Load reduced memory module technology uses a distributed data buffer to improve bandwidth efficiencies when scaling to higher capacities and speed on enterprise server systems. All LRDIMMs are registered but not all RDIMMs are LRDIMMs. LRDIMM or load-reduced DIMMs are (used in enterprise servers) support highest density modules and contain a memory buffer (MB) component usually made by IDT or Montage. The memory buffer minimizes the load on the server memory bus. LRDIMMs are commonly used to maximize Cisco UCS B420 M4.

What Cisco UCS B420 M4 memory speed is supported?

DDR4-2133, DDR4-2400 and DDR4-2666

Why may there be various speeds of Cisco UCS B420 M4 memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your B420 M4 manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for Cisco UCS B420 M4 upgrade to consider.

Some may or may not apply.

  • Do not mix DIMM LRDIMM and RDIMM types.
  • If mixing memory speeds, all 48 DIMMs run at the lowest DDR4-2133 bus frequency.
  • Install DIMMs starting furthest from the processor.
  • Do not install DIMMs if the corresponding processor is not installed.
  • If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
  • To maximize performance, balance the total memory capacity between all installed processors.
  • It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many Cisco UCS B420 M4 upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing Cisco UCS B420 M4 upgrades. All modules listed are qualified to work in your Cisco UCS B420 M4.


 

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