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Green rectangular 288-pin DDR4 server memory module with black chips and gold contacts

SAMSUNG

SAMSUNG M393A2G40DB1-CRC 16GB DDR4 2400 ECC Registered server RAM

SKU CH-4RJQ-6504A MPN M393A2G40DB1-CRC

16 GB DDR4 ECC registered memory running at 2400 MT/s with CL17 timing

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • ECC protection guards data integrity in critical workloads
  • Registered design stabilises signal quality for dense server configurations
  • DDR4 2400 speed delivers 19200 MB/s bandwidth for responsive performance
  • Low 1.20 V operation reduces power draw and thermal load
  • 288-pin 2Rx4 layout provides 16 GB capacity per module

Server-grade DDR4 module

This 16GB Samsung DDR4 module is built for servers and workstations that require error-correcting registered memory. It targets administrators upgrading or maintaining systems that specify DDR4 2400 registered DIMMs.

288-pin registered DIMM

The module uses a standard 288-pin DDR4 form factor with registered buffering to reduce electrical load on the memory controller. ECC circuitry detects and corrects single-bit errors, helping maintain data integrity in always-on environments.

DDR4 2400 CL17 1.20V

Rated at DDR4 2400 (PC4 19200) with 17-17-17 timings and 1.20V operation, this 2Rx4 module must match the platform's supported speed, voltage and registered ECC requirements to function correctly.

How it compares

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

Price $134.99
Cheaper than about 58% 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 $8.44 per GB
Pricier than about 60% 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 nameM393A2G40DB1-CRC
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.04 kg
Package size169 × 53 × 15 mm

Questions about this item

What does the PC4 19200 DDR4 2400 rating mean for real-world bandwidth?

The DDR4 2400 interface runs at 2400 MT/s; PC4 19200 is the matching peak transfer designation.

Will this 288-pin registered DIMM fit in my server board?

It needs a DDR4 RDIMM slot with 288 pins and support for registered ECC modules.

What is the correct way to seat this module, and what step do people skip?

Align the notch, press straight down until both retention clips click, and verify the module sits fully level.

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