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Eight green DDR4 ECC UDIMM sticks in a row

A-Tech

A-Tech 64GB 8x8GB DDR4 2666 ECC UDIMM 2Rx8 CL19 1.2V 288-Pin

SKU CH-NM4M-P2WEC

Eight-module DDR4 ECC UDIMM kit delivering 64 GB at 2666 MHz with CL19 latency and 1.2 V operation

  • CAS latencyCL19
  • Memory rank2Rx8
  • 64 GB kit of eight 8 GB modules for high-capacity server workloads
  • DDR4 2666 MHz speed rated at PC4-21300 for fast data throughput
  • ECC unbuffered design detects and corrects memory errors automatically
  • Dual-rank 2Rx8 organisation increases memory density per channel
  • Standard 1.2 V DDR4 voltage reduces power draw in 288-pin DIMM form factor

64GB DDR4 ECC Kit for Servers

This 64GB kit contains eight 8GB DDR4 2666 MHz ECC UDIMM modules built for servers and workstations. Each module runs at 1.2V with CL19 latency and a 2Rx8 dual-rank layout. The 288-pin unbuffered design fits systems that specifically require DDR4 ECC unbuffered memory. It is not compatible with desktop or laptop computers.

Installation and Common Issues

Installation follows standard DIMM seating procedures; consult the system manual for correct channel population order. The most frequent problem is purchasing this kit for a platform that does not support ECC unbuffered memory, which prevents the system from posting. Verifying the motherboard's qualified vendor list before ordering avoids this mismatch.

Suited for Multi-Socket Workloads

The eight-module configuration works well for administrators expanding memory in multi-socket servers or workstations that can populate all available slots. Buyers who need higher per-module density or faster speeds should look at alternative kits. Systems limited to fewer than eight slots or those requiring registered ECC memory cannot use this product.

How it compares

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

Price $796.99
Pricier than about 77% of the 6,523 comparable items (median $188.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Memory
CAS latencyCL19
Memory rank2Rx8

Questions about this item

How can I confirm the 64GB kit is running at 2666 MHz after installation?

Check the memory speed in your server BIOS or use a hardware monitoring tool such as CPU-Z to verify the operating frequency reads 2666 MHz.

What is included in the package and do I need any extra components?

The box contains eight 8 GB DDR4 ECC UDIMM modules; no additional parts are required for installation in a compatible system.

Should I choose this 64GB 2Rx8 kit or a different capacity for my workstation?

Select this 64 GB 2Rx8 kit when your workload needs maximum capacity across eight slots; choose a smaller kit if fewer slots are available or less memory is required.

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