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A-Tech

A-Tech 32GB DDR4 2933MHz ECC RDIMM 2Rx4 CL21 1.20V Server Memory

SKU CH-R625-2SJYY

32 GB DDR4 ECC registered DIMM running at 2933 MHz with CL21 latency and 1.20 V

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetSamsung Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 32 GB capacity handles heavy server workloads
  • DDR4 2933 MHz speed accelerates data throughput
  • ECC RDIMM design corrects errors for reliability
  • 2Rx4 dual-rank organisation boosts memory density
  • 20 V standard voltage reduces power draw

Server-grade ECC RDIMM for 2933 MHz platforms

This 32 GB DDR4 module delivers registered ECC operation at 2933 MHz with a CL21 latency and 1.20 V power draw. The 2Rx4 organisation and Samsung chipset provide the error correction and signal integrity required by enterprise workloads. It is built for administrators who need dependable capacity expansion in qualified server and workstation boards.

Sustained throughput with registered buffering

The registered design places a buffer between the memory controller and the DRAM array, reducing electrical load during continuous read and write streams. ECC circuitry corrects single-bit errors on the fly, preventing silent data corruption during long compute jobs. At the standard 1.20 V the module maintains stability without the voltage excursions that can appear under prolonged stress.

Direct replacement for Samsung M393A4K40BB3-CVF

This unit matches the form factor, speed, rank layout and voltage of the Samsung reference part, so it slots into the same qualified memory lists without requalification. The upgrade is worthwhile when a system currently runs lower-capacity RDIMMs or non-ECC memory and the workload demands both higher density and error correction. Buyers who need unbuffered UDIMMs or faster JEDEC speeds should look elsewhere.

How it compares

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

Price $187.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $5.87 per GB
Cheaper than about 65% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Samsung
Model nameM393A4K40BB3-CVF
Total capacity32 GB
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

How much heat does the 1.20 V DDR4 module generate when running all day?

At 1.20 V the DDR4 RDIMM operates at standard DDR4 voltage, so its thermal output is comparable to other registered DDR4 modules under sustained load.

What must my motherboard provide to use this 288-pin RDIMM?

The board needs a 288-pin DDR4 DIMM slot that supports registered ECC memory and can run at 2933 MHz.

Will this 2Rx4 CL21 stick work alongside my older 1Rx8 DDR4 modules?

Mixing 2Rx4 and 1Rx8 ranks is possible if the motherboard supports mixed-rank populations, but the system will run at the lowest common speed and latency.

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