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Two green DDR4 ECC UDIMM modules with gold contacts and black chips

A-Tech

A-Tech 8GB (2x4GB) DDR4 2133 ECC UDIMM 1Rx8 1.2V 288-pin Server RAM

SKU CH-3S3A-H1PPZ

ECC unbuffered DDR4 kit adds 8 GB at 2133 MHz with CL15 latency for servers and workstations

  • CAS latencyCL15
  • Memory rank1Rx8
  • 8GB dual-channel kit expands server memory capacity
  • 2133 MHz DDR4 speed accelerates data throughput
  • ECC unbuffered design detects and corrects single-bit errors
  • Single-rank 1Rx8 organisation improves memory controller efficiency
  • 2 V standard voltage reduces power draw per module

Server DDR4 ECC UDIMM kit

This A-Tech kit provides 8 GB of DDR4 ECC unbuffered memory in two 4 GB modules. It is built for servers and workstations that require error-correcting code RAM and will not work in standard desktop or laptop computers.

Single-rank 1Rx8 organisation

Each module uses a 1Rx8 single-rank layout with CL15 latency at 2133 MHz. The rank configuration is the critical specification that determines whether your server’s memory controller can populate all slots at the rated speed.

Standard-voltage thermal profile

The modules run at the DDR4 standard 1.2 V, keeping power draw and heat output low in typical server workloads. Unbuffered ECC DIMMs of this density operate quietly with passive cooling in properly ventilated chassis.

How it compares

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

Price $56.99
Cheaper than about 82% of the 6,523 comparable items (median $188.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Memory
CAS latencyCL15
Memory rank1Rx8

Questions about this item

What does 2133 MHz mean once this kit is installed in a server?

The modules run at DDR4-2133 with CL15 timing, giving each 4 GB stick a peak transfer rate of PC4-17000 for faster data access in compatible systems.

How does the ECC UDIMM interface limit what this memory can do?

ECC UDIMM adds single-bit error correction without buffering, so it works only in servers and workstations that support unbuffered ECC — not in standard desktops or laptops.

What physical slot and clearance does this 288-pin DIMM need?

Each stick fits a standard DDR4 288-pin DIMM socket at 1.2 V; verify your board’s channel layout and heatsink clearance before seating both modules.

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