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Green rectangular circuit board with gold contacts and black memory chips

SAMSUNG

SAMSUNG 8GB DDR4 2133 ECC RDIMM 1Rx4 M393A1G40DB0-CPB

SKU CH-7FDR-ZTZ3S

8GB 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
  • 8GB capacity expands server memory headroom
  • DDR4 2133 speed delivers reliable data throughput
  • ECC registered design detects and corrects memory errors
  • CL15 latency at 1.2V balances responsiveness with efficiency
  • Validated across a wide range of server motherboards

8GB DDR4 2133 ECC RDIMM for servers

This 8GB DDR4 2133 ECC RDIMM is built for servers and workstations that require registered memory with error correction. The module runs at 2133 MT/s with CL15 latency at 1.20V. A single 1Rx4 rank uses 288-pin DDR4 packaging.

Upgrade from non-ECC or slower DDR4

Replacing non-ECC UDIMMs or lower-speed DDR4 with this registered ECC module adds data-integrity protection and signal buffering for multi-DIMM configurations. The jump is worth it when the platform validates M393A1G40DB0-CPB and the workload cannot tolerate silent data corruption.

Limited to DDR4 2133 registered channels

The DDR4 2133 interface caps bandwidth at the PC4-17000 rate and requires a memory controller that supports registered DIMMs. Systems that only accept unbuffered memory or that lock speeds below 2133 MT/s cannot use this module at its rated specification.

How it compares

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

Price $51.99
Cheaper than about 77% 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 $6.50 per GB
Cheaper than about 61% 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 30 mm module height fit inside my 1U server chassis?

The module measures 30 mm tall, which is the standard height for 288-pin DDR4 RDIMMs and fits typical 1U server memory slots.

Which slot orientation and alignment step avoids a bent pin when installing this 288-pin DDR4 RDIMM?

Align the off-centre notch on the module with the key in the slot, press straight down until both side clips click, and do not rock the module.

How do I verify that ECC correction is active after installing this 1Rx4 registered module?

Enable ECC in the BIOS, then check the operating-system memory report or IPMI logs for corrected-error counters to confirm operation.

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