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Green rectangular DDR4 module with gold edge contacts and black chips

SK hynix

SK hynix HMA41GR7MFR4N-TF 8GB DDR4 2133 CL15 ECC Registered 1Rx4

SKU CH-MDH3-8W3XP

8GB DDR4 2133 CL15 ECC Registered 1Rx4 module for server memory upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4
  • ECC protection prevents data corruption in critical workloads
  • Registered design reduces electrical load for stable multi-module operation
  • 1Rx4 single-rank layout simplifies memory controller timing
  • 20 V DDR4 voltage lowers power draw versus older generations
  • 2133 MT/s speed delivers PC4-17000 bandwidth for server tasks

Server DDR4 module for registered ECC workloads

This 8 GB DDR4 stick runs at 2133 MT/s with a CL15 latency and 1.20 V operation. It uses a 288-pin form factor and includes on-die ECC with registered buffering for signal integrity. The single-rank 1Rx4 organisation suits density-optimised server boards.

Suits administrators expanding

The module requires a motherboard that supports registered ECC DDR4 and cannot be used in unbuffered consumer desktops or laptops. Systems limited to lower densities per slot or non-ECC memory will not accept this part.

Registered ECC with 1Rx4 rank structure

Registered buffering and ECC are mandatory for the target platform; the single-rank 1Rx4 layout determines how the memory controller addresses the 8 GB capacity. Verify that your server qualified-vendor list includes this configuration before purchase.

How it compares

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

Price $46.99
Cheaper than about 85% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $5.87 per GB
Cheaper than about 65% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHynix
Model nameHMA41GR7MFR4N-TF
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V

Questions about this item

How much power does the 1.20V DDR4 module draw when the server runs continuously?

The module operates at the standard DDR4 voltage of 1.20V; actual power draw depends on the server workload and platform power management.

What motherboard slot and chipset support is required for this 288-pin registered ECC module?

It requires a 288-pin DDR4 DIMM slot on a server or workstation platform that supports registered ECC memory.

Can this CL15 2133 MT/s stick run alongside older DDR4 modules at different speeds?

Yes, the motherboard will clock all installed DDR4 modules to the lowest common speed and latency.

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