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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 64GB DDR4 2400 ECC LRDIMM 4Rx4 Server Memory

SKU CH-S6W3-0B2A3

64 GB DDR4 2400 ECC LRDIMM 4Rx4 server memory module for Cisco systems

  • Total capacity64 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64 GB capacity lets you run larger workloads
  • DDR4 2400 MHz speed delivers high data throughput
  • ECC LRDIMM design detects and corrects memory errors
  • 2 V operation keeps power draw low
  • 288-pin DIMM form factor fits compatible server slots

64GB DDR4 2400 ECC LRDIMM for Cisco Servers

This 64GB DDR4 2400 module is a load-reduced DIMM built for Cisco UCS-ML-1X644RV-A and 15-104063-01 systems. It targets administrators who need registered ECC memory with a 4Rx4 organisation to expand compatible server platforms. The single 288-pin stick operates at 1.20V with a CAS latency of 17.

Capacity and headroom: 64GB per module

A single 64GB stick provides substantial capacity for virtualisation hosts, in-memory databases or dense VDI deployments. The 4Rx4 layout maximises density per slot, though the quad-rank electrical load limits how many modules the memory controller can drive at the rated 2400 MT/s. Workloads that exceed this capacity must add modules within the platform’s rank and channel limits.

DDR4 2400 interface constraints

The PC4-19200 interface caps peak bandwidth at the DDR4 2400 data rate, so throughput scales with populated channels rather than per-module speed. Mixing ranks or exceeding the controller’s maximum supported ranks per channel will force a downshift below 2400 MT/s. The 262-pin form factor noted in supplier data is a labeling inconsistency; this module uses the standard DDR4 288-pin DIMM connector.

How it compares

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

Price $201.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $3.16 per GB
Cheaper than about 88% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Cisco
Model nameUCS-ML-1 × 644RV-A, 15-104063-01
Total capacity64 GB
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

Can I add this 64GB 2400 MHz DDR4 LRDIMM alongside existing DDR4 2400 registered DIMMs in the same server?

This module runs at DDR4 2400 (PC4-19200) with CL17 at 1.20V as a 4Rx4 load-reduced DIMM. Mixing LRDIMMs with standard registered DIMMs is not supported by server platforms; all slots must use the same memory type for the system to boot and operate correctly.

How can I verify the module is detected and running at 2400 MHz with ECC active after installation?

Enter the server BIOS or UEFI and check the memory configuration screen; it should show a 64GB DDR4 2400 MHz LRDIMM with ECC enabled. The operating system can also confirm the speed and ECC status using tools such as dmidecode on Linux or the System Information utility on Windows.

What is included in the box and do I need any extra parts to install this 288-pin DDR4 LRDIMM?

The box contains one 64GB A-Tech DDR4 2400 ECC LRDIMM module (288-pin). No additional cables, brackets or cooling parts are required; the module installs directly into an available DDR4 DIMM slot on a compatible server motherboard.

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