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
Four green DDR4 server memory modules with gold contacts and black heat spreaders

A-Tech

A-Tech 256GB (4x64GB) DDR4 2933 ECC LRDIMM 4Rx4 Server RAM

SKU CH-J0NZ-D8XM4

A 256 GB quad-channel kit of four 64 GB DDR4 2933 ECC LRDIMM modules with CL21 latency and 1.2 V operation

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 MHz speed with PC4-23400 bandwidth rating
  • ECC Load Reduced DIMM for data integrity in servers
  • 4Rx4 quad-rank design maximises density per slot
  • 20 V standard DDR4 voltage for efficient operation

256GB quad-channel server kit

This A-Tech kit provides 256GB of DDR4 memory across four 64GB LRDIMM modules. It targets servers and workstations that require ECC Load Reduced DIMMs with a 4Rx4 organisation. The modules operate at 2933 MHz with CL21 latency at the standard 1.20V. Desktop and laptop systems cannot use these modules.

Upgrading from lower-capacity LRDIMMs

The jump is worthwhile when the current memory limit restricts virtual-machine density, in-memory databases or large dataset processing. Replacing smaller LRDIMMs with these 64GB modules raises the ceiling without changing the memory topology. Systems that already run 4Rx4 Load Reduced memory at 2933 MHz gain capacity without a speed or rank change.

Sustained load behaviour

ECC error correction protects data integrity during continuous operation. The Load Reduced design lowers electrical loading on the memory bus, helping signal stability when all four channels are fully populated. Standard 1.20V operation keeps power draw predictable during extended compute tasks.

Highlights

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 MHz speed with PC4-23400 bandwidth rating
  • ECC Load Reduced DIMM for data integrity in servers
  • 4Rx4 quad-rank design maximises density per slot
  • 20 V standard DDR4 voltage for efficient operation

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 64GB 4Rx4 PC4-2933Y-L
Capacity256GB (4 x 64GB)
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4 (4DRx4)
Multi-channel KitQuad Channel Kit
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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

Will the 288-pin DDR4 LRDIMM modules fit my server's memory slots?

These 288-pin DDR4 LRDIMM modules fit server and workstation boards that support DDR4 ECC load-reduced memory; they are not compatible with desktop or laptop systems.

What is the correct seating order for the four 64 GB modules in a quad-channel setup?

Install the four 64 GB modules following your system manual's quad-channel population guide; a common error is placing modules in the wrong slot sequence, which prevents the system from recognising the full 256 GB capacity.

How do I know when a 64 GB module in the 256 GB kit needs replacement?

If the server reports corrected ECC errors, fails memory diagnostics, or will not POST with a specific 64 GB module installed, that module should be replaced.

Also in this aisle

People compared these

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