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
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

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.20V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 128GB
  • 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.

Highlights

  • 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

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 128GB 2S4Rx4 PC4-2400T-L
Part NumberAT128G2D4D2400LO4N12V
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank2S4Rx4 (8Rx4 3DS/TSV)
Multi-channel KitDual Channel Kit
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips / Error Correcting Technology for Server Systems

Other versions of this model

3 more in the same range

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

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.

Also in this aisle

People compared these

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