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
Eight green DDR4 ECC UDIMM sticks, no heat spreaders

A-Tech

A-Tech 128GB (8x16GB) DDR4 2666 ECC UDIMM 2Rx8 CL19 1.2V Server RAM

SKU CH-WYNC-RH5BD

128 GB kit of eight 16 GB DDR4 2666 ECC UDIMM modules with CL19 latency and 1.2 V operation for servers and workstations

  • Capacity128GB (8 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • 128GB kit with eight 16GB modules expands server memory capacity
  • DDR4 2666 MHz speed accelerates data throughput for demanding workloads
  • ECC unbuffered design detects and corrects single-bit errors automatically
  • Dual-rank 2Rx8 organisation increases memory density per channel
  • 2V standard voltage reduces power draw while maintaining stability

128 GB DDR4 ECC kit for servers

This 128 GB kit contains eight 16 GB DDR4 modules rated at 2666 MHz with CL19 latency. Each stick is an unbuffered ECC UDIMM built for server and workstation platforms that require error-correcting memory. The dual-rank 2Rx8 organisation helps maximise density on boards with limited DIMM slots. Desktop and laptop systems cannot use these modules.

Sustained throughput with error correction

The modules run at the standard 1.2 V DDR4 voltage, keeping power draw predictable during long compute jobs. ECC circuitry detects and corrects single-bit errors on the fly, preventing silent data corruption that can accumulate under heavy, continuous workloads. Unbuffered signalling reduces command overhead compared to registered alternatives, so latency stays consistent when the memory controller is saturated. The CL19 timing is tuned for stability at the rated 2666 MT/s data rate.

Plain green PCB fits standard 288-pin slots

No heat spreaders are fitted, so module height matches the JEDEC low-profile envelope and avoids clearance issues with oversized CPU coolers or dense chassis airflow paths. The 288-pin edge connector keys only into DDR4 UDIMM sockets, physically preventing installation in incompatible platforms. Major-brand DRAM chips are used throughout the kit, and every stick is validated before shipping to ensure reliable operation in qualified server and workstation motherboards.

Highlights

  • 128GB kit with eight 16GB modules expands server memory capacity
  • DDR4 2666 MHz speed accelerates data throughput for demanding workloads
  • ECC unbuffered design detects and corrects single-bit errors automatically
  • Dual-rank 2Rx8 organisation increases memory density per channel
  • 2V standard voltage reduces power draw while maintaining stability

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 16GB 2Rx8 PC4-2666V-E
Part NumberAT16G8D4D2666UD8N12V
Capacity128GB (8 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips / Error Correcting Technology for Server & Workstation Systems

Questions about this item

How much power does the 1.2V DDR4 2666 kit draw when the server runs continuously?

Each module operates at 1.2V, the standard DDR4 voltage, so total power scales with the eight 16GB sticks installed.

What motherboard slots and CPU memory controller are required for these 288-pin ECC UDIMM modules?

You need a server or workstation board with DDR4 UDIMM slots that accept unbuffered ECC memory; desktop and laptop platforms are not compatible.

Will these dual-rank 2Rx8 sticks work alongside older single-rank DDR4 modules in the same system?

Mixing ranks is possible only if the platform's memory controller and BIOS support mixed-rank populations; consult the system manual for approved configurations.

Also in this aisle

People compared these

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