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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

SK hynix

SK hynix HMAA4GR7CJR8N-XN 32GB DDR4-3200 ECC Reg CL22 Dual Rank server RAM

SKU CH-Z6JJ-QQ6XR

32 GB registered DDR4 ECC module running at 3200 MT/s with CL22 latency for server workloads

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Buffer typeRegistered
  • Product type288-Pin DDR4 SDRAM
  • 32 GB capacity supports large server workloads
  • Registered ECC design protects data integrity
  • DDR4-3200 speed delivers 25600 MT/s bandwidth
  • CL22 latency balances timing and stability
  • Dual-rank 288-pin layout fits standard DDR4 slots

32 GB DDR4-3200 ECC Registered module

This SK hynix 288-pin DIMM delivers 32 GB of DDR4 memory at 3200 MT/s with CL22 latency. It is built for servers and workstations that require registered, error-correcting memory. The dual-rank design fits standard DDR4 slots in compatible platforms.

Ideal for capacity-focused server builds

The registered ECC design suits administrators expanding memory in supported server or workstation chassis. Builders who need unbuffered non-ECC modules for consumer desktops should look elsewhere. Systems that cannot accept registered DDR4 will not work with this module.

Fits registered DDR4 platforms

Installation requires a motherboard with 288-pin DDR4 slots that support registered ECC memory. The module frees additional DIMM slots for further capacity expansion when the platform allows. Verify platform qualification lists before integrating into a production environment.

How it compares

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

Price $258.99
Pricier than about 57% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $8.09 per GB
Pricier than about 58% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHynix
Part numberHMAA4GR7CJR8N-XN
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered

Questions about this item

What motherboard slot does this 288-pin DDR4 module require?

It installs in a standard 288-pin DDR4 DIMM slot on a server or workstation motherboard that supports registered ECC memory.

Will this CL22 registered ECC module run with older DDR4 sticks that have different latencies or ranks?

Mixed kits usually default to the slowest speed and loosest timings; matching rank, speed and voltage gives the most stable operation.

How can I confirm the module is running at DDR4-3200 with ECC active after installation?

Check the BIOS memory information or use a tool such as dmidecode to verify 3200 MT/s speed, CL22 timings and ECC status.

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