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Green bare circuit board DDR5 server memory module 288-pin 64GB registered ECC

A-Tech

A-Tech 64GB DDR5 4800MHz ECC RDIMM 2Rx4 for IBM-Lenovo 4X77A77033 4X77A81442 03LA110 Server RAM

SKU CH-N8SY-0GM0N

64GB DDR5 4800MHz ECC registered server module with 2Rx4 organisation and 1.10V operation

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor Brand Chipset
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 64GB capacity handles heavy server workloads
  • DDR5 4800MHz speed accelerates data throughput
  • ECC RDIMM registered design ensures data integrity
  • 2Rx4 dual-rank architecture boosts memory density
  • 1V standard voltage reduces power consumption

64GB DDR5-4800 ECC RDIMM

This A-Tech module supplies 64GB of DDR5 4800MHz registered ECC memory in a single 288-pin DIMM. It runs at the standard 1.10V and carries a CAS latency of 40. The 2Rx4 organisation uses major-brand DRAM ICs and is built as a compatible replacement for IBM-Lenovo part numbers 4X77A77033, 4X77A81442 and 03LA110.

Suited for servers needing registered ECC DDR5

The stick targets administrators upgrading or repairing systems that require DDR5-4800 RDIMM modules with ECC and registered buffering. Buyers whose platforms accept only unbuffered UDIMMs, a different DDR generation, or a lower density per module should select a different part.

Registered ECC with 2Rx4 layout

The registered ECC design combined with a 2Rx4 rank configuration is the specification that determines whether this module matches the memory controller and slot population rules of the target server.

How it compares

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

Price $1,583.99
Pricier than about 84% 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).
CAS latency 40
Typical for this category: the median of 439 items is 40.
Price per GB $24.75 per GB
Pricier than about 86% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for IBM-Lenovo 4 × 77A77033 4 × 77A81442 03LA110
Model nameA-Tech 64 GB DDR5-4800 ECC RDIMM Server RAM Module
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

Does the 288-pin DDR5 RDIMM ship as a single 64 GB module or do I need to buy extra sticks?

The package contains one 64 GB module; additional sticks are not included and must be purchased separately if your system requires more capacity.

Should I pick the 4800 MHz PC5-38400 version or a different speed grade for my Lenovo server?

This module runs at 4800 MHz (PC5-38400) with CL40 and 1.10 V, matching the specification for the listed Lenovo part numbers.

What does the 2Rx4 rank layout mean once the stick is installed in a real server?

The 2Rx4 organisation provides two ranks of x4 DRAM chips, allowing the memory controller to interleave accesses for higher bandwidth in registered ECC server platforms.

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