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Green 288-pin DDR4 RDIMM module with black chips and silver label

A-Tech

A-Tech 64GB DDR4 2933 ECC RDIMM 2Rx4 CL21 1.2V Server Memory

SKU CH-4751-F0A09

64 GB DDR4 2933 ECC registered DIMM with 2Rx4 CL21 timing at 1.2 V for server upgrades

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 64 GB capacity handles large server workloads
  • DDR4 2933 MHz speed moves data fast
  • ECC RDIMM design protects data integrity
  • 2 V operation keeps power draw low
  • 2Rx4 rank layout fits registered DIMM slots

Server Memory Upgrade

This A-Tech module provides 64GB of DDR4 2933 registered ECC memory in a single 288-pin DIMM. It is built for servers and workstations that require error-correcting registered modules to maintain data integrity under heavy workloads.

Thermals and Power

Operating at the standard DDR4 voltage of 1.20V, the module runs within normal thermal limits for registered server memory. The registered buffer reduces electrical loading on the memory controller, contributing to stable operation in densely populated slots.

Capacity and Rank Configuration

The 64GB density is delivered in a 2Rx4 organisation, which determines how the memory controller addresses the chips. Systems limited to single-rank or lower-density modules will not support this configuration.

How it compares

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

Price $325.99
Pricier than about 62% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $5.09 per GB
Cheaper than about 72% 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 capacity64 GB
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

How do I install this 288-pin DDR4 RDIMM, and what step is often missed?

Align the notch on the module with the slot key, press firmly until both side clips click, then verify the system detects 64GB at 2933MHz in BIOS.

What maintenance or replacement will this ECC RDIMM need later?

No routine maintenance is required; replace only if memory diagnostics report uncorrectable errors or the module fails to post.

What limit appears first under sustained load with this CL21 1.20V module?

The CAS latency of 21 cycles at 2933MHz sets the timing floor, so throughput plateaus before voltage or thermal limits are reached.

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