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Green 288-pin DDR4 DIMM with black chips and gold contacts

SK hynix

SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM

SKU CH-9637-H95YD

A 16 GB DDR4 server module with ECC, registered signal processing and dual-rank organisation running at 2133 MHz CL15

  • Total capacity16 GB
  • Product type288-Pin DDR4 SDRAM
  • ECC protection prevents data corruption in critical workloads
  • Registered signal processing improves stability on multi-module server boards
  • Dual-rank organisation increases memory density per channel
  • 16 GB capacity supports larger datasets and virtual machines
  • 2133 MHz DDR4 speed delivers 17000 MB/s bandwidth

16GB DDR4-2133 ECC Registered Module

This 16GB DDR4 SDRAM module runs at 2133MHz with CL15 latency and 1.2V operation. It uses a 288-pin DIMM form factor and is built for server platforms that require registered, error-correcting memory.

Thermals Noise and Power

Standard JEDEC 1.2V voltage keeps power draw low for dense server configurations. Registered buffering reduces electrical load on the memory controller, helping maintain signal integrity under sustained workloads.

Upgrade Scope and Fit

Replaces non-ECC or unbuffered DIMMs in systems that mandate registered ECC memory with dual-rank x4 organisation. The jump is worth it when your platform requires data-integrity checking and registered signalling for stability.

How it compares

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

Price $78.99
Cheaper than about 75% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $4.94 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
Total capacity16 GB
Product type288-Pin DDR4 SDRAM

Questions about this item

How do I install this 288-Pin DDR4 DIMM and which notch alignment mistake should I avoid?

Align the single off-centre key notch on the 288-Pin DDR4 module with the slot ridge, press straight down until both side clips click, and ensure the registered ECC module is seated in a server board that supports registered memory.

What maintenance or replacement will this 16GB dual-rank ECC module need over its service life?

No scheduled maintenance is required; if a correctable error count rises or an uncorrectable error appears, replace the module — otherwise it runs for the server’s lifetime.

What thermal or voltage limit appears first when this 1.2V CL15 kit runs at 2133MHz under sustained load?

The JEDEC 1.2 V operating voltage is the first fixed limit; sustained heavy workloads keep the module at this voltage while the registered buffer manages signal integrity.

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