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Eight green DDR4 UDIMM modules in anti-static tray

A-Tech

A-Tech 32GB (8x4GB) DDR4 2133 ECC UDIMM 1Rx8 Server RAM

SKU CH-M6JR-5HYYC

32GB kit of eight 4GB DDR4 2133 ECC unbuffered DIMMs for servers and workstations

  • Total capacity32 GB (8 × 4 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 32 GB kit of eight 4 GB modules expands server memory capacity
  • DDR4 2133 MHz speed with CL15 latency improves data throughput
  • ECC unbuffered design detects and corrects single-bit errors automatically
  • Single-rank 1Rx8 organisation simplifies memory controller scheduling
  • 2 V DDR4 standard voltage reduces power draw per module

Server-grade ECC UDIMM kit

This 32 GB kit contains eight 4 GB DDR4 2133 modules built for servers and workstations that require error-correcting unbuffered memory. Each stick is a single-rank 1Rx8 design running at 1.2 V with CL15 latency. The modules are not compatible with standard desktop or laptop platforms.

Steady throughput on multi-core workloads

ECC circuitry corrects single-bit errors in real time, preventing silent data corruption during long compute runs or virtualization tasks. Unbuffered topology keeps latency low across all populated channels, while the single-rank layout helps the memory controller maintain consistent timing under sustained load.

Plain green PCB fits dense DIMM arrays

The 288-pin UDIMM form factor slots directly into standard server boards without extra height from heat spreaders. Major-brand chips are tested for reliability before shipping, and the kit arrives as eight matched modules to simplify channel population.

How it compares

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

Price $169.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 32 GB (8 × 4 GB)
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $5.31 per GB
Cheaper than about 71% 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 4 GB 1Rx8 PC4-2133P-E
Part numberAT4G8D4D2133US8N12 V
Total capacity32 GB (8 × 4 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How much power does each 4 GB DDR4 2133 module draw at the rated 1.2 V?

Each module operates at the standard DDR4 voltage of 1.20 V; actual wattage depends on the server platform and workload.

What motherboard slots and memory controller support are required for this 8 x 4 GB ECC UDIMM kit?

The kit needs eight 288-pin DDR4 UDIMM slots and a CPU or chipset that supports ECC unbuffered DDR4 2133 memory.

Will these single-rank 1Rx8 DDR4 2133 ECC UDIMMs work alongside older DDR4 registered DIMMs in the same server?

No — unbuffered ECC UDIMMs and registered ECC RDIMMs cannot be mixed; all slots must use the same module type.

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