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

SAMSUNG

SAMSUNG M393A1G40DB0-CPB DDR4 8GB 2133 CL15 ECC Registered Server Memory

SKU CH-917D-VG0R1

ECC-registered DDR4 module delivering 8 GB 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 reduces electrical load for stable server operation
  • DDR4 2133 speed delivers 17000 MB/s bandwidth for responsive performance
  • CL15 latency ensures quick data access for demanding applications
  • 20V operation lowers power consumption and heat output

Server-grade DDR4 ECC registered module

This Samsung DDR4 module delivers 8 GB of registered ECC memory at 2133 MT/s with a CL15 latency. It is built for servers and workstations that require error correction and signal buffering for stable operation under continuous load.

Fits 288-pin DDR4 DIMM slots on compatible server

The 1.20 V module installs in standard 288-pin DDR4 sockets and presents a single-rank x4 organisation. Registered buffering reduces electrical load on the memory controller, freeing headroom for larger memory configurations.

No heat spreader or extra software included

The bare PCB design relies on chassis airflow for cooling, so adequate case ventilation is necessary. Buyers who need RGB lighting, bundled overclocking profiles or retail packaging should look elsewhere.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $51.99
Cheaper than about 83% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $6.50 per GB
Cheaper than about 59% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMSUNG
Model nameM393A1G40DB0-CPB
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
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How does the CL15 latency behave when the 8 GB DDR4 2133 module runs continuously?

CL15 is the rated CAS latency at 2133 MT/s and 1.20 V; it remains the specified timing as long as the module operates within those limits.

What thermal or acoustic impact does the 1.20 V registered DIMM add to a chassis running all day?

The module has no heat spreader and draws standard DDR4 power at 1.20 V, so it adds minimal heat and produces no audible noise itself.

What motherboard feature must be present for this 288-pin ECC registered DIMM to function?

The board must support DDR4 registered ECC memory and provide a 288-pin RDIMM slot.

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