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Two green DDR4 LRDIMM sticks, 288-pin, black chips, silver contacts

A-Tech

A-Tech 128GB (2x64GB) DDR4 2933 ECC LRDIMM 4Rx4 server RAM

SKU CH-W0A8-ZAMNZ

A 128 GB dual-channel DDR4 kit with two 64 GB ECC LRDIMM modules at 2933 MHz, CL21, 1.20 V, 288-pin

  • Capacity128GB (2 x 64GB)
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced

Capacity 128GB (2 x 64GB)

  • 128GB total capacity in a dual-channel 2x64GB kit
  • DDR4 2933MHz speed with CL21 latency for responsive server performance
  • ECC Load Reduced DIMM with 4Rx4 quad-rank architecture for maximum density
  • 2V standard DDR4 voltage for efficient power consumption
  • 288-pin registered form factor built for compatible DDR4 servers and workstations

Server-grade DDR4 LRDIMM kit for enterprise

This 128 GB kit contains two 64 GB DDR4 2933 MHz modules built as ECC Load Reduced DIMMs for servers and workstations. Each stick uses a 288-pin form factor and operates at the standard 1.2 V. The quad-rank 4Rx4 organisation is intended for multi-socket platforms that support LRDIMM memory.

Quad-rank 4Rx4 organisation determines platform fit

The modules are 4Rx4 (4DRx4) Load Reduced DIMMs, a configuration that only works in systems explicitly qualified for DDR4 ECC LRDIMM memory. Desktop and laptop platforms cannot use these modules. Verify the server or workstation memory specification list before purchase to confirm 4Rx4 LRDIMM support.

Sustained throughput with ECC and reduced

Load Reduced buffering lowers the electrical load on the memory bus, allowing the quad-rank modules to maintain stable operation at 2933 MHz under continuous heavy workloads. ECC corrects single-bit errors in real time, preserving data integrity during extended compute or virtualisation tasks. The CL21 latency and 1.2 V operation keep power draw predictable while the dual-channel kit layout supports balanced bandwidth across populated channels.

Highlights

  • 128GB total capacity in a dual-channel 2x64GB kit
  • DDR4 2933MHz speed with CL21 latency for responsive server performance
  • ECC Load Reduced DIMM with 4Rx4 quad-rank architecture for maximum density
  • 2V standard DDR4 voltage for efficient power consumption
  • 288-pin registered form factor built for compatible DDR4 servers and workstations

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 64GB 4Rx4 PC4-2933Y-L
Capacity128GB (2 x 64GB)
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4 (4DRx4)
Multi-channel KitDual Channel Kit
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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Questions about this item

What does the 2933 MT/s rating mean for real-world throughput in a server?

At DDR4 2933 the memory bus runs at 2933 MT/s, so each module transfers data at that rate when the platform operates it at the rated speed.

How does the PC4-23400 designation relate to the module's bandwidth?

PC4-23400 is the peak transfer rate label that corresponds to DDR4 2933; the platform will cap throughput at that level when the memory runs at its rated speed.

What physical slot and clearance do these 288-pin LRDIMMs need?

They require standard DDR4 DIMM sockets with 288 pins and enough vertical clearance for the module height; the load-reduced design does not change the slot keying.

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