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 RDIMM sticks, no heat spreaders, gold contacts, black chips, 288-pin

A-Tech

A-Tech 8GB (2x4GB) DDR4 2666 ECC RDIMM 1Rx8 server RAM

SKU CH-1ZT1-T76HE

An 8 GB dual-channel DDR4 ECC registered DIMM kit running at 2666 MHz with CL19 latency for servers and workstations

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 8GB (2 x 4GB)

  • ECC protects data integrity with registered DDR4 modules
  • 2666 MHz speed accelerates server workloads
  • Dual-channel kit doubles memory bandwidth
  • Single-rank 1Rx8 layout supports dense configurations
  • 2 V operation matches standard DDR4 voltage

8GB DDR4 2666 ECC RDIMM kit

This 8GB kit contains two 4GB registered DIMMs built for DDR4 servers and workstations that require ECC memory. Each module runs at 2666 MHz with CL19 latency at 1.2V and uses a single-rank x8 organisation. The registered buffer reduces electrical load on the memory controller in multi-module configurations.

Registered ECC with major-brand chips

The registered design adds a buffer between the DRAM and the system bus, allowing larger memory populations without signal degradation. On-die ECC corrects single-bit errors and detects multi-bit errors to protect data integrity in critical workloads. Major-brand DRAM chips are used throughout and every module is tested before shipment.

Verify DDR4 RDIMM support and channel rules

Confirm that your server or workstation accepts DDR4 288-pin registered ECC DIMMs and does not require unbuffered or load-reduced modules. Check the system manual for approved memory speeds, maximum capacity per slot, and the correct slot population order for dual-channel operation. Desktop and laptop platforms cannot use these modules.

How it compares

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

Price $38.99
Cheaper than about 88% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $4.87 per GB
Cheaper than about 74% 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 4 GB 1Rx8 PC4-2666 V-R
Part numberAT4G2D4D2666RS8N12 V
Total capacity8 GB (2 × 4 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Will the 1Rx8 registered DIMMs need any firmware updates or battery-backed settings to keep ECC working over time?

No firmware or battery-backed settings are required; the ECC function is handled by the memory controller once the modules are seated in the 288-pin slots.

What thermal limit appears first when the kit runs continuously at 2666 MHz inside a fully populated server chassis?

The modules have no heat spreader, so the DRAM junction temperature reaches its rated maximum before any other component throttles.

How much heat does the dual-rank kit add to the airflow path when the system operates all day at 1.20 V?

At 1.20 V each 4 GB stick draws only a few watts, so the total thermal load stays low even in a dense 288-pin DIMM array.

More in ECC Server RAM

Similar items