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Green 288-pin DDR4 RDIMM module, 133mm long, 30mm tall

SAMSUNG

SAMSUNG M393A1G40DB0-CPB 8GB 1RX4 PC4-2133P ECC RDIMM memory upgrade

SKU CH-YQZW-CZGY1

An 8 GB DDR4 ECC registered DIMM running at 2133 MHz with CL15 latency and 1.2 V operation

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signals for reliable server operation
  • DDR4 2133 speed delivers consistent throughput for demanding tasks
  • 20V operation reduces power draw in dense configurations
  • 1Rx4 organisation optimises density for 8GB capacity

Server DDR4 ECC RDIMM

This 288-pin DDR4 registered DIMM delivers 8GB of ECC-protected memory at 2133 MT/s with CL15 latency. It operates at 1.20V and uses a 1Rx4 organisation, making it suitable for multi-socket server platforms that require registered modules with error correction. The module is validated for a wide range of Supermicro X10-series motherboards.

Registered buffer and ECC parity

On-board registers retime clock, command and control signals to reduce electrical load on the memory controller, allowing larger memory populations per channel. An 8-bit parity check provides single-bit error detection and correction, improving data integrity for workloads that cannot tolerate silent corruption. These features replace standard unbuffered non-ECC DIMMs in qualified server boards.

8GB capacity at DDR4 2133

The single 8GB rank fits entry-level virtualisation hosts, database nodes or compute clusters that run within the DDR4 2133 speed envelope. Systems needing higher bandwidth per core, larger per-module densities or faster memory clocks will require modules beyond this specification.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $47.99
Cheaper than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.00 per GB
Cheaper than about 65% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameSAMSUNG
Product lineServer Memory
Model nameSAMSUNG:M393A1G40DB0-CPB
SAMSUNG:M393A1G40EB1-CPB
CRUCIAL:CT8G4RFS4213
HYNIX:HMA41GR7MFR4N-TF
KINGSTON:KVR21R15S4/8
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsM393A1G40DB0-CPB

Questions about this item

Will the 1Rx4 ECC RDIMM module require any periodic maintenance or component replacement during its service life?

No, the DDR4 2133 module has no moving parts or user-serviceable components; once installed in a compatible 288-pin slot it operates without further maintenance.

What limit appears first when the registered DIMM runs continuously at its rated 2133 MT/s speed?

The primary sustained-use limit is thermal — the 1.20 V DRAM and register generate heat that must be dissipated by system airflow to maintain CL15 stability.

How much power does the 8 GB DDR4 2133 ECC RDIMM draw and how much heat does it produce during all-day operation?

At 1.20 V the module typically consumes a few watts, producing modest heat that standard server chassis airflow handles without additional cooling.

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