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Green rectangular DIMM module with black chips and gold contacts

SAMSUNG

SAMSUNG M393A2K40CB2-CVF 16GB DDR4 2933 ECC Registered server RAM

SKU CH-91B5-Q05PR MPN M393A2K40CB2-CVF

16 GB DDR4-2933 ECC registered DIMM with CL21 latency for server workloads

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2933 (PC4 23400)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in critical workloads
  • Registered signal processing improves stability for dense server configurations
  • DDR4 2933 speed delivers 23400 MB/s bandwidth for demanding applications
  • Low 1.20V voltage reduces power consumption per module
  • CL21 latency balances timing for reliable throughput

16 GB DDR4 2933 ECC Registered DIMM

This Samsung M393A2K40CB2-CVF module delivers 16 GB of DDR4 memory at 2933 MHz with a CL21 latency. It operates at 1.20 V and uses a 288-pin registered DIMM form factor with 1Rx4 organisation. Error-correcting code and registered signal processing protect data integrity in multi-module server configurations.

Suited for servers needing registered ECC memory

This module fits systems that require registered DDR4 DIMMs with ECC support at the 2933 MHz speed grade. It will not work in platforms that accept only unbuffered non-ECC memory, nor in boards limited to lower DDR4 speeds or different pin counts. Buyers needing higher capacities per slot or different voltage requirements should look elsewhere.

No bundled accessories or software included

The shipment contains only the memory module itself. No heatsinks, cables, configuration utilities or diagnostic tools are supplied. Installation relies on the host system BIOS to recognise the registered ECC timings and voltage automatically.

Points forts

  • ECC protection prevents data corruption in critical workloads
  • Registered signal processing improves stability for dense server configurations
  • DDR4 2933 speed delivers 23400 MB/s bandwidth for demanding applications
  • Low 1.20V voltage reduces power consumption per module
  • CL21 latency balances timing for reliable throughput

Caractéristiques

BrandSAMSUNG
ModelM393A2K40CB2-CVF
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2933 (PC4 23400)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Poids d’expédition0.45 kg
Dimensions du colis127 × 25 × 5 mm

Questions sur cet article

Does this 288-pin DDR4 DIMM need a motherboard slot that supports registered ECC memory?

Yes — the module is registered and ECC, so the system must accept registered DDR4 DIMMs with error correction.

Will this CL21 2933 MHz stick down-clock reliably if I keep older DDR4 modules in the same server?

The module runs at 1.20 V and CL21; when mixed with slower DDR4 DIMMs the memory controller will negotiate a common speed and latency.

How can I confirm the module is detected at 2933 MHz with ECC active after installation?

Check the BIOS memory information or the OS memory report — both should show 16 GB at 2933 MHz with ECC enabled.

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