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Green rectangular DDR4 DIMM module with black chips and gold contacts

A-Tech

A-Tech 16GB DDR4 2400MHz ECC RDIMM 1Rx4 CL17 Server Memory

SKU CH-EAKJ-5EJ3G

16 GB DDR4 2400 MHz ECC registered DIMM for server and workstation upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetSamsung Chipset
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16 GB DDR4 2400 MHz boosts server throughput
  • ECC RDIMM detects and corrects single-bit errors
  • 1Rx4 single-rank design keeps electrical load low
  • 2 V standard voltage limits power draw
  • 288-pin DIMM fits registered DDR4 server slots

16GB DDR4 ECC RDIMM for servers

This 16GB DDR4 2400MHz ECC registered DIMM targets server and workstation platforms that require error-correcting memory. The module operates at PC4-19200 speed with CL17 latency and 1.20V voltage. It serves administrators upgrading compatible systems or replacing failed sticks in production environments.

Registered 288-pin build with Samsung chipset

The stick uses a registered 288-pin DDR4 DIMM form factor built on Samsung chipset with 1Rx4 organisation. Registered buffering reduces electrical load on the memory controller, allowing larger populations per channel. ECC circuitry detects and corrects single-bit errors to protect data integrity in always-on workloads.

Replaces Samsung M393A2K40BB1-CRC0Q in validated

This module is a compatible equivalent for the Samsung M393A2K40BB1-CRC0Q part number. The upgrade makes sense when your platform qualified that specific SKU and you need a tested drop-in replacement. Buyers whose systems demand different speeds, ranks or unbuffered DIMMs should verify specifications before ordering.

How it compares

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

Price $88.99
Cheaper than about 73% 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 $5.56 per GB
Cheaper than about 68% 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 nameM393A2K40BB1-CRC0Q
Total capacity16 GB
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V

Questions about this item

What speed does the DDR4 2400 interface cap at in practice?

The DDR4 2400 interface runs at 2400 MT/s, labelled PC4-19200, with a CAS latency of CL17.

What physical slot does the 288-pin RDIMM require?

It fits a standard DDR4 288-pin DIMM socket; the module is a registered ECC RDIMM.

How is the module installed and what step is often missed?

Align the notch with the key in the 288-pin slot, press down until both retention clips click, and verify the system detects 16 GB at 2400 MT/s.

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