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Green 240-pin DDR3 DIMM with black memory chips and gold edge contacts

SAMSUNG

SAMSUNG M393B2G70DB0-CMA 16GB DDR3 1866 ECC Registered server RAM

SKU CH-3BZ1-3Q86J MPN M393B2G70DB0-CMA

16 GB DDR3 1866 ECC Registered server memory with CL13 timing and 1.5 V operation

  • Total capacity16 GB
  • Rated speedDDR3 1866
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Memory timings13-13-13
  • Rated voltage1.5 V
  • 16 GB capacity expands server memory headroom
  • DDR3 1866 speed delivers 14.9 Gbps bandwidth per channel
  • ECC registered design detects and corrects data errors
  • CL13 13-13-13 timing ensures smooth system response
  • 240-pin 1.5 V 2Rx4 module fits registered DDR3 slots

Server memory for enterprise workloads

This 16GB DDR3 module runs at 1866 MT/s with CL13 timing and 1.50V operation. It is built for servers and workstations that require registered ECC memory to maintain data integrity under sustained load.

Suited for registered ECC platforms only

The module uses a 240-pin DDR3 interface with registered signalling and 2Rx4 organisation. Systems that accept only unbuffered non-ECC memory cannot use this part, and boards limited to lower DDR3 speeds will not reach the rated 1866 MT/s.

Registered ECC with 2Rx4 organisation

The single specification that decides fit is the registered ECC design combined with 2Rx4 rank configuration. Your motherboard must explicitly support registered ECC DDR3 and the 2Rx4 layout for this module to function.

How it compares

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

Price $46.99
Cheaper than about 85% 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 $2.94 per GB
Cheaper than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSAMSUNG
Model nameM393B2G70DB0-CMA
Total capacity16 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1866
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
Memory timings13-13-13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.5 V
Size & build
Shipping weight0.09 kg
Package size165 × 51 × 13 mm

Questions about this item

Does the 240-pin DDR3 module fit a standard server DIMM slot?

Yes, the 240-pin DDR3 form factor matches standard registered DIMM slots used in compatible servers.

What is the correct seating procedure for the registered ECC module?

Align the notch with the slot key, press down firmly until both retention clips click, confirming the 16 GB 2Rx4 module is fully seated.

When should the 1.5 V DDR3 1866 memory be replaced?

Replace the module if system logs report uncorrectable ECC errors or if memory diagnostics fail during scheduled maintenance.

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