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Two green DDR4 server memory modules, 288-pin LRDIMM form factor, bare PCB with black chips

A-Tech

A-Tech 512GB (2x256GB) DDR4 3200 ECC LRDIMM 2S4Rx4 Server RAM

SKU CH-S02N-XEVRD

A 512 GB DDR4 server kit with two 256 GB ECC load-reduced DIMMs running at 3200 MHz and CL22 latency

  • Total capacity512 GB (2 × 256 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 512GB (2 x 256GB)

  • Massive 512 GB capacity from two 256 GB modules
  • DDR4 3200 MHz speed for fast data throughput
  • ECC Load Reduced DIMM corrects errors in critical workloads
  • 2S4Rx4 octal-rank 3DS/TSV architecture enables high density
  • Standard 1.2 V DDR4 voltage for efficient server operation

512 GB DDR4 3200 ECC LRDIMM kit

This 512 GB kit contains two 256 GB DDR4 3200 modules built as load-reduced DIMMs with ECC. The 288-pin DIMMs run at 1.20 V with CL22 latency and use 2S4Rx4 octal-rank 3DS/TSV organisation. They are designed for servers and workstations that require registered ECC memory.

Server and workstation upgrades only

This memory suits administrators expanding capacity in DDR4 platforms that support 256 GB LRDIMMs per slot. It is not for desktop or laptop systems, which cannot use load-reduced ECC modules. Builders needing unbuffered UDIMMs or standard RDIMMs should look elsewhere.

256 GB per module density

Each module provides 256 GB in a single 288-pin LRDIMM using 2S4Rx4 3DS/TSV rank structure. Verify that your server or workstation chipset and BIOS support this density and rank configuration before purchase.

How it compares

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

Price $4,059.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (2 × 256 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $7.93 per GB
Pricier than about 56% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Server Memory RAM
Model nameA-Tech 256 GB 2S4Rx4 PC4-3200AA-L
Part numberAT256G2D4D3200LO4N12 V
Total capacity512 GB (2 × 256 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Memory rank2S4Rx4 (8Rx4 3DS/TSV)
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

3 more in the same range

Questions about this item

How does the 512GB capacity of this kit translate to usable memory in a server?

The kit provides two 256GB LRDIMM modules, giving 512GB total DDR4 ECC memory that the operating system can address directly for large datasets and virtualization workloads.

What does the PC4-25600 rating mean for real-world bandwidth?

PC4-25600 indicates a peak transfer rate of 25,600 MB/s per module at DDR4 3200 MT/s; actual throughput depends on the server's memory controller and channel configuration.

Will these 288-pin LRDIMMs fit in a standard server DIMM slot?

Yes, they use the standard 288-pin DDR4 DIMM form factor and require a server or workstation motherboard with LRDIMM support and 2S4Rx4 rank compatibility.

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