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Green bare circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 64GB DDR5 4800 EC4 RDIMM 2Rx4 ECC Registered server RAM

SKU CH-TMQF-KKWJZ

Single 64 GB DDR5 ECC registered module running at 4800 MHz with CL40 latency and 1.1 V operation for server and workstation upgrades

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 64GB

  • 64 GB capacity expands server memory headroom for heavy workloads
  • DDR5 4800 MHz speed delivers high bandwidth for demanding applications
  • ECC registered design detects and corrects data errors automatically
  • Dual rank x4 organisation increases memory density per channel
  • 1 V operation matches DDR5 standard voltage for efficient power use

64 GB DDR5 RDIMM for servers

This single 64 GB DDR5 module runs at 4800 MHz with CL40 latency and 1.1 V operation. It uses a 288-pin registered DIMM layout with ECC and a 2Rx4 dual-rank x4 organisation. The module is built for server and workstation platforms that require registered ECC memory.

Registered ECC limits desktop use

Registered signalling and ECC require a platform memory controller that supports both features. Standard desktop and laptop boards lack this support, so the module will not function in those systems. Compatibility must be confirmed against the server or workstation memory qualification list before installation.

Replaces lower-capacity RDIMMs

Adding this 64 GB module increases total memory capacity without occupying additional slots. The upgrade is worthwhile when workloads exceed the limits of smaller registered DIMMs and the platform supports the DDR5 4800 registered ECC standard.

How it compares

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

Price $1,778.99
Pricier than about 85% 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 $27.80 per GB
Pricier than about 89% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR5 Server Memory RAM
Model nameA-Tech 64 GB 2Rx4 PC5-4800B-R EC4
Part numberAT64G1D5D4800RD4EC4N11 V
Total capacity64 GB
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationSingle Module
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Should I pick the single 64 GB module or add a second one?

This listing is a single 64 GB DDR5 4800 RDIMM; add a second identical module only if your server board has a free 288-pin slot and the manual approves dual-rank population.

What does the 4800 MHz speed deliver in my server?

The module runs at DDR5 4800 with CL40 latency at 1.10 V, giving the platform its rated transfer rate when the memory controller is configured for that speed.

Is the PC5-38400 label the same as DDR5 4800, and what does it limit?

PC5-38400 is the JEDEC designation for DDR5 4800; the registered buffer and ECC logic operate within that spec, so the system cannot exceed the 4800 MT/s data rate.

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