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Technical Data Sheet
W403Y ✓ Verified by PartsTable
DELL · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW

Random Access Memory (RAM) is a type of hardware that your computer uses to store information. Adding memory is one of the most cost-effective ways to improve your computer's performance. Key specifications include Component for: PC/Server, Internal memory: 64 GB, Memory clock speed: 2933 MHz, Memory form factor: 288-pin DIMM, Internal memory type: DDR4, Harmonized System (HS) code: 84733020.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY RDIMM W403Y
SPECIFICATIONS
Component forPC/Server
Internal memory64 GB
Memory clock speed2933 MHz
Memory form factor288-pin DIMM
Internal memory typeDDR4
Harmonized System (HS) code84733020
Memory layout (modules x size)1 x 64 GB
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 2933MHz RDIMM DELL NOTCH ~133.35 mm DDR4 RDIMM | 64GB | 2933MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN W403Y MFR DELL 64GB 2933MHz
KEY FEATURES
Up to 64 GB
DDR4 Interface
64GB Capacity
2933MHz Speed
DDR4 Memory
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
SNPW403YC/64GCompatible
Dell 64GB PC4-2933Y-R ECC Reg Dr X4 Cas-21 Dimm - Mpn
compatible
370-AEQDCompatible
Dell 64GB PC4-2933Y-R ECC Reg Dr X4 Cas-21 Dimm - Spn
compatible
AA579530Compatible
Dell 64GB PC4-2933Y-R ECC Reg Dr X4 Cas-21 Dimm - Dpn
compatible
LIFECYCLE
StatusUNKNOWN
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
AA579530SUBSTITUTE
Dell 64Gb PC4-2933Y-R ECC REG DR x4 CAS-21 DIMM - APN
DELL
SNPW403YC/64GSUBSTITUTE
Dell 64Gb PC4-2933Y-R ECC REG DR x4 CAS-21 DIMM - APN
DELL
370-AEQDSUBSTITUTE
Dell 64Gb PC4-2933Y-R ECC REG DR x4 CAS-21 DIMM - APN
DELL
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FREQUENTLY ASKED QUESTIONS
What is W403Y?
W403Y is a DELL W403Y, 64 GB, 1 x 64 GB, DDR4, 2933 MHz, 288-pin DIMM manufactured by DELL. It is classified as a MEMORY (RDIMM).
What parts can replace W403Y?
There are 3 known substitutes for W403Y: SNPW403YC/64G, 370-AEQD, AA579530. Substitute compatibility should be verified for your specific system.
Is W403Y still available?
W403Y is currently Unknown.
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