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Two green DDR4 server memory modules, 288-pin LRDIMM, no heat spreader

A-Tech

A-Tech 256GB (2x128GB) DDR4 2400 ECC LRDIMM 2S4Rx4 server RAM

SKU CH-GXGY-Z7G88

Two 128 GB DDR4 2400 ECC LRDIMM modules provide 256 GB of load-reduced server memory at 1.20 V with CL17 latency

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced

Capacity 256GB (2 x 128GB)

  • 256 GB kit doubles server capacity for heavy workloads
  • ECC load-reduced DIMMs correct errors and lighten bus load
  • DDR4 2400 MHz CL17 at 1.2 V for efficient speed
  • Dual-channel 2 × 128 GB octal-rank 3DS modules
  • 288-pin DDR4 form factor fits compatible server slots

Kit capacity and target systems

This 256 GB kit contains two 128 GB DDR4 2400 modules built as ECC load-reduced DIMMs for servers and workstations. The octal-rank 3DS design lets compatible platforms address very high memory densities per slot. It is not suitable for desktop or laptop computers.

Installation notes

The 288-pin DIMMs install like standard registered memory but require a motherboard that supports LRDIMM and the 2S4Rx4 rank structure. Mis-seating or placing modules in unsupported channels is the most common cause of boot failure; always follow the system manual for population rules.

Who this suits and who should look elsewhere

Suits administrators expanding memory in qualified DDR4 servers that accept 128 GB ECC LRDIMMs per slot. Builders needing non-ECC memory, desktop form factors, higher speeds, or capacities beyond what their platform qualifies should choose a different kit.

How it compares

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

Price $972.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $3.80 per GB
Cheaper than about 83% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Server Memory RAM
Model nameA-Tech 128 GB 2S4Rx4 PC4-2400T-L
Part numberAT128G2D4D2400LO4N12 V
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
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 can I confirm the 256GB DDR4 2400 ECC LRDIMM kit is running at the correct 2400 MHz speed and CL17 latency after installation?

Enter the system BIOS or UEFI and verify the memory frequency reads 2400 MHz with CAS latency 17; the modules operate at 1.20V standard DDR4 voltage, and the ECC Load Reduced function will be reported by the server management interface if the platform supports it.

What exactly ships in the 256GB dual-channel kit and are any extra parts required for installation?

The box contains two 128GB 288-pin DDR4 ECC LRDIMM modules (2S4Rx4 octal-rank 3DS/TSV); no heat spreaders, cables or additional hardware are included, and nothing else must be purchased separately provided the server has free 288-pin DDR4 DIMM slots.

Should I choose this 256GB (2x128GB) 2S4Rx4 DDR4 2400 ECC LRDIMM kit or a different capacity or rank configuration?

Select this kit when your server or workstation specifically supports 128GB DDR4 ECC Load Reduced DIMMs with 2S4Rx4 octal-rank 3DS/TSV organisation and you need a matched 256GB dual-channel pair; otherwise choose a capacity and rank layout listed in your system's qualified-vendor list.

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