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Green Samsung 16GB DDR4 ECC Registered DIMM with black chips no heat spreader 288 pins

SAMSUNG

SAMSUNG 16GB DDR4 2133 ECC Registered CL15 M393A2G40DB0-CPB server RAM

SKU CH-NGJT-EFXNN MPN M393A2G40DB0-CPB

16 GB DDR4-2133 ECC registered module with CL15 timing for server data integrity

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC protects data integrity in critical workloads
  • Registered buffering improves signal stability on dense servers
  • 16 GB capacity expands memory for virtualisation
  • DDR4 2133 speed delivers 17000 MT/s bandwidth
  • 2 V operation reduces power draw per module

16GB DDR4 ECC Registered module

This 16GB DDR4 module is built for servers and workstations that require error-correcting code memory. The registered design adds a buffer to reduce electrical load on the memory controller. It suits administrators upgrading multi-socket platforms where data integrity and uptime are critical.

2133 MHz CL15 capacity and headroom

Rated at DDR4 2133 with CL15 latency, the module delivers 16GB of capacity per DIMM. The 2Rx4 rank organisation supports higher density configurations within populated channels. Systems needing faster signalling or lower latency than 2133 MT/s will not benefit from this specific speed grade.

No heat spreader or bundled software

The DIMM ships without a heat spreader, relying on chassis airflow for thermal management. No software utilities, drivers or diagnostic tools are included in the package. Buyers who need active cooling accessories or configuration software must source those separately.

How it compares

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

Price $151.99
Cheaper than about 56% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $9.50 per GB
Pricier than about 65% 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 nameM393A2G40DB0-CPB
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.04 kg
Package size169 × 53 × 15 mm

Questions about this item

Will this 16GB DDR4 2133 CL15 registered ECC module run alongside my existing DDR4 2133 registered ECC sticks?

Yes, it uses the same 288-pin DDR4 interface, 1.20V voltage and CL15 timing, so it will operate with other DDR4 2133 registered ECC modules provided the platform supports the total capacity and rank configuration.

How can I confirm the M393A2G40DB0-CPB is running at 2133 MHz with ECC active after installation?

Check the BIOS memory information or use a tool such as CPU-Z or dmidecode; they will report 2133 MHz, CL15, 1.20V, registered signal processing and ECC enabled for this 16GB module.

Does the box contain only the single 16GB 2Rx4 RDIMM or are any cables or brackets included?

Only the 16GB 288-pin DDR4 registered ECC DIMM is supplied; no cables, brackets or additional hardware are included.

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