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Green 288-pin DDR4 ECC registered DIMM with black chips

SK hynix

SK hynix 8GB DDR4 PC4-2133P 2Rx8 ECC Registered DIMM server RAM

SKU CH-EAJ5-Z4N3P

Adds 8 GB of DDR4 ECC registered memory at 2133 MT/s to compatible servers

  • Total capacity8 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • Product type288-Pin DDR4 SDRAM
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity for dense server configurations
  • 288-pin DDR4 form factor fits standard server DIMM slots
  • 2Rx8 organisation balances capacity and rank density
  • PC4-2133P rating delivers 2133 MT/s transfer speed

Server DDR4 ECC RDIMM

This 8 GB DDR4 module is built for servers and workstations that require error-correcting, registered memory. It suits administrators upgrading or repairing compatible enterprise platforms.

288-Pin Registered Build

The 288-pin DIMM uses a registered design with ECC to reduce electrical load on the memory controller and correct single-bit errors. This construction supports stable operation in multi-DIMM configurations.

DDR3 1066 Speed Limit

The module operates at DDR3 1066 (PC3 8500) rates, which caps bandwidth below modern DDR4 standards. Systems needing higher throughput or newer memory controllers will not benefit from this part.

How it compares

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

Price $57.99
Cheaper than about 82% 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 $7.25 per GB
Typical for this category: the median of 6,064 items is $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 capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR3 1066 (PC3 8500)

Questions about this item

What DDR standard does the PC4-2133P rating correspond to and what data rate does it cap at?

The module is DDR4 SDRAM rated at PC4-2133P, which caps the practical data rate at 2133 MT/s.

What physical slot and pin count does this 288-Pin DIMM require?

It fits a standard 288-pin DDR4 DIMM socket on a server motherboard.

How is the HMA41GR7MFR8N-TF module installed and which alignment step is often missed?

Align the single notch on the 288-pin edge connector with the socket key, press down firmly until both retention clips click shut.

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