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PartsTable / COMPONENT / 66D3D8R7SK2/4G
66D3D8R7SK2/4G ✓ Verified by PartsTable
Kingston Technology · DIMM
WHAT YOU NEED TO KNOW
2Rx4 = Dual Rank ×4 chip width (standard server) RDIMM = Registered (servers) | LRDIMM = Load-Reduced (max density)
DDR3 ≠ DDR4 ≠ DDR5 — physically incompatible (notch position)
PRODUCT OVERVIEW

The 4GB, 1066MHz, DDR3, ECC Reg w/Par CL7, DIMM (Kit of 2) is a Kingston Technology memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
66D3D8R7SK2/4G
SPECIFICATIONS
Part Number66D3D8R7SK2/4G
ManufacturerKingston Technology
InterfaceDDR3
Capacity4GB
Speed1066MHz
COMPONENT DIAGRAM
ECC 4GB 2Rx4 PC3 1066MHz RDIMM Kings NOTCH ~133.35 mm DDR3 RDIMM | 4GB | 1066MHz | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 66D3D8R7SK2/4G MFR Kingston Technology 4GB 1066MHz
KEY FEATURES
•
DDR3 Interface
•
4GB Capacity
•
1066MHz Speed
•
DDR3 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

No verified substitutes available.

LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66D3D8R7SK2/4G?
66D3D8R7SK2/4G is a 4GB, 1066MHz, DDR3, ECC Reg w/Par CL7, DIMM (Kit of 2) manufactured by Kingston Technology.
Is 66D3D8R7SK2/4G still available?
66D3D8R7SK2/4G is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026