We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
A green 288-pin DDR4 RDIMM module with black memory chips and no heat spreader

A-Tech

A-Tech 64GB DDR4 2133 ECC RDIMM 2S4Rx4 288-Pin 1.2V Server RAM

SKU CH-HQYG-1BAP2

A 64GB DDR4 registered ECC server module running at 2133 MHz with CL15 latency and 1.2V operation

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes

Capacity 64GB

  • 64 GB capacity lets servers handle larger workloads
  • ECC RDIMM design detects and corrects memory errors
  • Registered buffering reduces electrical load on the memory controller
  • 2133 MHz DDR4 speed delivers high data throughput
  • 20 V operation lowers power consumption per module

64GB DDR4 2133 ECC RDIMM for servers

This 64GB DDR4 2133 MHz ECC Registered DIMM is built for servers and workstations that require error-correcting, registered memory. The single module delivers 64GB capacity using 2S4Rx4 octal-rank x4 3DS/TSV organisation. It operates at the standard 1.2V DDR4 voltage with CL15 latency. It is not compatible with desktop or laptop computers.

288-pin registered module fits DDR4 server slots

The 288-pin RDIMM plugs directly into DDR4 server and workstation motherboards that support registered ECC memory. The registered buffer reduces electrical load on the memory controller, allowing higher total system capacities. No heat spreader is fitted, so airflow in the chassis cools the chips. Verify your system manual for supported ranks, voltages and channel population rules before installation.

Upgrades from lower-capacity or non-ECC DDR4

Replacing smaller DDR4 RDIMMs with this 64GB module increases memory density per slot, freeing slots for future expansion. Moving from non-ECC or unbuffered memory adds error correction and signal integrity required by server platforms. The jump is worthwhile when workloads exceed current capacity or when the platform demands registered ECC for stability.

Highlights

  • 64 GB capacity lets servers handle larger workloads
  • ECC RDIMM design detects and corrects memory errors
  • Registered buffering reduces electrical load on the memory controller
  • 2133 MHz DDR4 speed delivers high data throughput
  • 20 V operation lowers power consumption per module

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 64GB 2S4Rx4 PC4-2133P-R
Part NumberAT64G1D4D2133RO4N12V
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S4Rx4 (8Rx4 3DS/TSV)
Multi-channel KitSingle Module
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips / Error Correcting Technology for Server Systems

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What sustained-load limit appears first with this 64 GB octal-rank DDR4 2133 module?

The 1.2 V operating voltage and CL15 latency set the thermal and timing envelope that the memory controller reaches before any other limit during continuous server workloads.

How much heat and noise does a single 288-pin 64 GB RDIMM add when running all day?

With no heat spreader and a standard 1.2 V DDR4 supply, the module relies on chassis airflow; it adds negligible acoustic noise and only modest thermal load compared to higher-voltage or overclocked kits.

Which server platform feature must already be present for this ECC RDIMM to function?

The motherboard must provide a registered DDR4 2133 memory controller that supports 8Rx4 3DS/TSV octal-rank modules; desktop or laptop platforms will not recognise the module.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.