M386A8K40DM2‑CTD Specifications
Samsung 64 GB DDR4‑2666 ECC Load‑Reduced DIMM (LRDIMM) Memory Module
Manufacturer: Samsung
Manufacturer Model: M386A8K40DM2‑CTD
Product Line: Samsung DDR4 Server Memory
Product Series: 64 GB DDR4‑2666 LRDIMM
Product Type: Load‑Reduced ECC Registered (LRDIMM) Memory Module
Product Name: Samsung 64 GB DDR4‑2666 MHz ECC LRDIMM
KEY FEATURES:
Storage Capacity: 64 GB
Memory Type: DDR4
Data Transfer Rate: 2666 MT/s (PC4‑21300)
Voltage: 1.2 V
Form Factor: 288‑pin DIMM
ECC Support: Yes (Error‑Correcting Code)
Rank: 4R × 4 (Quad Rank ×4)
PERFORMANCE:
Maximum Bandwidth: ~21,300 MB/s (PC4‑21300)
Latency: CL19 typical
Compatible Platforms: Server systems supporting LRDIMM memory modules
ENVIRONMENTAL & RELIABILITY:
Designed for enterprise / data‑center-class systems requiring high-capacity, error-correcting memory
MTBF / Reliability: Enterprise-grade ECC LRDIMM
Production Status: Discontinued (EOL)
PHYSICAL:
Form Factor: 288‑pin LRDIMM
Typical Dimensions: Standard full‑height DIMM (~133 mm × ~30 mm)
Weight: Not publicly specified

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