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A9781930 — Dell 64GB (1x64gb) 4Rx4 Pc4-21300V-L DDR4-2666MHZ LRDIMM

DELL · MEMORY · LRDIMM
PRODUCT OVERVIEW
DELL 64GB (1x64GB) 4RX4 PC4-21300V-L DDR4-2666MHZ LRDIMM

A9781930: Dell 64GB (1x64gb) 4Rx4 Pc4-21300V-L DDR4-2666MHZ LRDIMM.

DELL 64GB (1x64GB) 4RX4 PC4-21300V-L DDR4-2666MHZ LRDIMM. Key specifications include ECC: Yes, Component for: PC/Server, Memory voltage: 1.2 V, Product colour: Black, Green, Internal memory: 64 GB, Chips organisation: 4Rx4. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ LRDIMM→ A9781930
SPECIFICATIONS
ECCYes
Component forPC/Server
Memory ranking4
Memory voltage1.2 V
Product colourBlack, Green
Internal memory64 GB
Chips organisation4Rx4
Memory clock speed2666 MHz
Memory form factor288-pin DIMM
Internal memory typeDDR4
Harmonized System (HS) code84733020
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 2666MHz LRDIMM DELL NOTCH ~133.35 mm DDR4 LRDIMM | 64GB | 2666MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 LRDIMM PN A9781930 MFR DELL 64GB 2666MHz
KEY FEATURES
•
Up to 64 GB
•
DDR4 Interface
•
64GB Capacity
•
2666MHz Speed
•
DDR4 LRDIMM
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
SUBSTITUTES & CROSS-REFERENCES 5
M386A8K40BM2CTDSubstituteBROKER-VERIFIED
M386a8k40bm2-Ctd
substitute
SNP4JMGMC/64GCompatiblePARTNER
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - MPN
compatible
370-ADNHCompatiblePARTNER
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - SPN
compatible
370-AETBCompatiblePARTNER
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - SPN
compatible
4JMGMCompatiblePARTNER
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - APN
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 4
SNP4JMGMC/64GSUBSTITUTE
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - DPN
DELL
370-ADNHSUBSTITUTE
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - DPN
DELL
370-AETBSUBSTITUTE
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - DPN
DELL
4JMGMSUBSTITUTE
Dell 64Gb PC4-2666V-L Load Reduced QR x4 CAS-19 DIMM - DPN
DELL
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FREQUENTLY ASKED QUESTIONS
What is A9781930?
A9781930 is a Dell 64GB (1x64gb) 4Rx4 Pc4-21300V-L DDR4-2666MHZ LRDIMM manufactured by DELL. It is classified as a MEMORY (LRDIMM).
What parts can replace A9781930?
There are 5 known substitutes for A9781930: M386A8K40BM2CTD, SNP4JMGMC/64G, 370-ADNH and 2 more. Substitute compatibility should be verified for your specific system.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.