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Green 240-pin DDR3 RDIMM module with black chips

A-Tech

A-Tech 4GB DDR3 1866 ECC RDIMM 1Rx8 Server Memory

SKU CH-2KNM-2VW10

4GB DDR3 1866MHz ECC registered DIMM with CL13 latency for server upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 4GB capacity handles demanding server workloads
  • DDR3 1866MHz speed accelerates data throughput
  • ECC registered design prevents data corruption
  • 5V standard voltage ensures broad compatibility
  • 240-pin DIMM form factor fits standard server slots

Server DDR3 ECC RDIMM

This A-Tech module is a 4 GB registered DDR3 DIMM rated at 1866 MHz with CL13 latency and 1.50 V operation. It uses a 1Rx8 organisation and major-brand chips to deliver error-correcting memory for server and workstation platforms.

240-pin installation and compatibility

The 240-pin DIMM fits standard DDR3 registered slots and requires no extra configuration beyond seating the module firmly until the latches click. The main risk is inserting a registered stick into a board that only accepts unbuffered memory, which will prevent the system from posting.

Suited for Micron replacement builds

Buyers replacing Micron MT9JSF51272PZ-1G9 or MT9JSF51272PZ-1G9E2 modules in compatible servers will find a direct match. Systems that need unbuffered non-ECC DDR3, higher capacities per slot, or a different memory generation should look elsewhere.

How it compares

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

Price $22.99
Cheaper than about 93% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $5.75 per GB
Cheaper than about 66% 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 nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Power
Rated voltage1.5 V

Questions about this item

How can I confirm the module is running at DDR3 1866 MHz with CL13 after installation?

Check the memory speed and latency in BIOS or use a tool like CPU-Z; it should show 1866 MHz and CAS latency 13 at 1.5 V.

What comes with the 4 GB DDR3 1866 ECC RDIMM and do I need anything else?

The box contains one 240-pin registered DIMM; no extra parts are required if your server has a free DDR3 ECC RDIMM slot.

Should I choose the 1Rx8 4 GB version or a different capacity for my Micron MT9JSF51272PZ-1G9 replacement?

This 1Rx8 4 GB module matches the Micron part exactly; select a different capacity only if your system supports larger registered ECC DIMMs.

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