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M386A8K40CM2-CVF
The M386A8K40CM2-CVF is an enterprise-grade DDR4 Load Reduced DIMM module from Samsung, built for high-capacity server platforms that require reliable memory performance under continuous workloads. With 64GB of capacity and 2933 MT/s speed, it delivers the bandwidth needed for memory-hungry enterprise workloads while maintaining stability through ECC error correction.
Unlike standard RDIMMs, the LRDIMM architecture uses a load-reducing buffer to lower electrical loading on the memory bus, allowing servers to support larger total memory capacities by populating more DIMMs per channel. This makes it particularly useful for dense memory configurations, virtualization hosts, in-memory databases, and cloud infrastructure where system RAM is a critical performance factor.
Organized as 4Rx4 quad rank x4, the module balances high capacity with efficient memory access across multiple ranks. It operates at 1.2V, helping to reduce power consumption and heat generation compared with higher-voltage memory solutions. Every Samsung server memory module is manufactured with strict quality control and compatibility testing to support long-term, 24/7 operation in enterprise server environments.
Note: LRDIMM requires explicit motherboard and platform support. It cannot be mixed with RDIMM, UDIMM, or other memory types in the same system.
Parameter | Specification |
|---|---|
Part Number | M386A8K40CM2-CVF |
Brand | Samsung |
Capacity | 64GB |
Memory Type | DDR4 SDRAM |
Form Factor | LRDIMM (Load Reduced DIMM) |
Speed | 2933 MT/s |
Standard | PC4-23400 |
ECC | Yes |
Organization | 4Rx4 (Quad Rank x4) |
Pin Count | 288 Pin |
Voltage | 1.2V |
Application | Enterprise Server / Workstation |
High Capacity — 64GB per module supports large memory footprints for enterprise workloads.
DDR4-2933 Performance — 2933 MT/s delivers fast data throughput for memory-intensive applications.
ECC Error Correction — Helps detect and correct memory errors to improve system reliability.
LRDIMM Architecture — Reduces bus loading and enables higher total memory capacity in supported servers.
4Rx4 Quad Rank Design — Efficient organization for high-density memory configurations.
1.2V Low Voltage — Lower power consumption and reduced heat generation.
Samsung Quality — Genuine Samsung components and strict testing for stable enterprise operation.
Enterprise Rack Servers
Data Center Memory Upgrades
Cloud Computing Hosts
Virtualization Servers
In-Memory Database Servers
High-Performance Computing (HPC)
Mission-Critical Enterprise Infrastructure
Q1: Is M386A8K40CM2-CVF compatible with desktop PCs? A: No. It is an LRDIMM server memory module and requires a server motherboard that explicitly supports LRDIMM.
Q2: What does LRDIMM mean? A: Load Reduced DIMM uses a buffer to lower memory bus loading, allowing supported servers to install higher total memory capacity.
Q3: Can I mix LRDIMM with RDIMM or UDIMM? A: No. LRDIMM must be used only in systems that support it, and should not be mixed with RDIMM, UDIMM, or other memory types.
Q4: What is the speed of this module? A: It runs at 2933 MT/s, corresponding to PC4-23400.
Q5: Does it support ECC? A: Yes, it supports ECC error correction for improved memory reliability in enterprise systems.
Q6: What is the voltage? A: 1.2V.
Q7: What is the rank organization? A: 4Rx4 (quad rank x4).
Q8: Is this memory hot-pluggable? A: Hot-plug support depends on the server platform and operating system. Please check your server manual before installation.
Q9: Does it come with a warranty? A: Please contact us for the exact warranty policy, as warranty terms depend on stock condition and sales agreement.
Q10: How do I confirm compatibility? A: Check your server’s memory configuration guide or motherboard QVL to confirm support for DDR4 LRDIMM 2933 4Rx4.
