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Green rectangular circuit board with gold edge connectors and black memory chips

SAMSUNG

SAMSUNG M393A4K40CB2-CTD 32GB DDR4 2666 ECC Registered server RAM

SKU CH-0RVK-3P0CM MPN M393A4K40CB2-CTD

32GB DDR4 2666 ECC Registered 288-pin server memory with CL19 latency and 1.20V operation

  • Capacity32GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Error-correcting code protects data integrity
  • Registered signal buffering improves system stability
  • 32GB capacity supports demanding server workloads
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • Compatible with listed Supermicro motherboard models

32GB DDR4 ECC Registered module

This 32GB DDR4 module runs at 2666 MT/s with CL19 latency and 1.20V operation. It is built as a 288-pin dual-rank 2Rx4 registered DIMM with error-correcting code. The specification targets servers and workstations that require registered memory for stability.

Upgrade from non-ECC or unbuffered DIMMs

Systems using unbuffered or non-ECC memory cannot accept this registered module; the jump is only possible when the platform explicitly supports registered ECC DIMMs. The change is worth it when data integrity and multi-DIMM capacity scaling are required for the workload.

Verify motherboard qualification

Confirm the exact motherboard model appears on the supplier's compatible Supermicro list before ordering. Registered DIMMs must match the platform's rank and voltage requirements, and mixing registered with unbuffered memory is not supported.

Points forts

  • Error-correcting code protects data integrity
  • Registered signal buffering improves system stability
  • 32GB capacity supports demanding server workloads
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • Compatible with listed Supermicro motherboard models

Caractéristiques

BrandSAMSUNG
ModelM393A4K40CB2-CTD
Capacity32GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
FeaturesCompatible Super micro MotherBoard model:
X10DRC-LN4+, X10DRC-T4+
X10DRi-LN4+, X10DRi-T4+
X10DRT-P, X10DRT-PIBF, X10DRT-PIBQ, X10DRT-PT
X10DRL-i, X10DRU-i+
X10DDW-i, X10DDW-iN
X10DRT-H, X10DRT-HIBF
X10DRH-C, X10DRH-CT, X10DRH-I, X10DRH-iT
X10DRU-X, X10DRU-XLL
X10DRD-iNTP, X10DRD-iTP, X10DRD-LTP
X10DRT-L, X10DRT-LIBF, X10DRT-LIBQ
X11DPT-PS
X11DPi, X11DPi-N, X11DPi-NT, X11DPi-T
X11DPU
X10DGO, X10DGO-T
X11SPW-CTF, X11SPW-TF
X11DPT-B, X11DDW-L, X11DDW-NT
B11DPT, B11DPT-P
X11DAi-N
X11SPL-F
X11SPH-nCTF, X11SPH-nCTPF
X11DPU-Z+
X11DPFR-S, X11DPFR-SN
X11DPU-X, X11DPU-XLL
X11DGQ
H11DSU-i, H11D
Poids d’expédition0.11 kg
Dimensions du colis171 × 51 × 13 mm

Questions sur cet article

What slot type and pin count does this 32GB DDR4 2666 module require on the motherboard?

The module uses a standard 288-pin DDR4 DIMM slot; it fits any server board that accepts registered DDR4 memory at 1.20V.

Which step is most often missed when installing this registered ECC memory on a Supermicro X10 or X11 board?

After seating the DIMM fully until the ejector tabs click, you must enter the BIOS and verify that the memory is running at DDR4 2666 with CL19 timings and that ECC is enabled.

What indicates that a dual-rank 2Rx4 module like this one should be replaced during routine server maintenance?

Persistent corrected ECC errors logged by the BMC or OS, or any uncorrectable memory fault that causes a system halt, signal that the module should be swapped out.

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