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Eight green DDR4 DIMMs with black chips no heat spreaders

A-Tech

A-Tech 128GB (8x16GB) DDR4 2133 ECC UDIMM 2Rx8 1.2V CL15 Server RAM

SKU CH-GV91-ABARX

Eight 16 GB DDR4 ECC UDIMM modules running at 2133 MHz CL15 provide 128 GB of unbuffered server memory

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 128 GB kit of eight 16 GB modules for high-capacity server workloads
  • DDR4 2133 MHz speed with CL15 latency for responsive data access
  • ECC unbuffered design detects and corrects memory errors automatically
  • Dual-rank 2Rx8 organisation maximises density per DIMM slot
  • Standard 1.2 V DDR4 voltage keeps power draw efficient

128 GB DDR4 ECC UDIMM kit for servers

This eight-module kit delivers 128 GB of DDR4 2133 memory in a 288-pin unbuffered DIMM form factor. Each 16 GB module operates at 1.2 V with CL15 latency and dual-rank x8 organisation. Error-correcting code protects data integrity in server and workstation workloads.

Unbuffered dual-rank design for compatible platforms

The UDIMM layout plugs directly into standard DDR4 server slots without registered buffering. Dual-rank x8 chips populate each module, so the memory controller sees two ranks per DIMM for improved interleaving. No heat spreader is fitted, keeping the modules low-profile for dense chassis.

Replaces non-ECC or lower-capacity DDR4 UDIMMs

Upgrading from non-ECC memory adds single-bit error correction and multi-bit detection for critical workloads. Moving from smaller 8 GB or 16 GB kits to this 128 GB set expands the addressable workspace for virtualisation and database tasks. The jump is worthwhile when the platform supports 2133 MHz unbuffered ECC and requires maximum DIMM population.

How it compares

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

Price $857.99
Pricier than about 78% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $6.70 per GB
Cheaper than about 56% 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 16 GB 2Rx8 PC4-2133P-E
Part numberAT16G8D4D2133UD8N12 V
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

What DDR4 speed and PC4 rating does this 128 GB kit run at?

The modules operate at DDR4 2133 MHz with a PC4-17000 transfer rate and CL15 latency.

What motherboard slot and pin count do these 16 GB modules need?

Each module is a 288-pin DDR4 UDIMM designed for unbuffered ECC DIMM slots on compatible servers or workstations.

How should the eight dual-rank sticks be seated for correct channel population?

Follow the system manual’s channel guidelines; populate matching slots per channel and press each 2Rx8 module until the retention clips lock.

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