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A green DDR5 RDIMM module with gold contacts and black chips

A-Tech

A-Tech 32GB DDR5 4800MHz ECC RDIMM 2Rx8 for Samsung M321R4GA3BB0-CQK M321R4GA3BB6-CQK Server Memory

SKU CH-HYB6-QSWDM

A 32GB DDR5 4800MHz ECC registered DIMM with CL40 latency, 1.10V operation and 2Rx8 organisation for Samsung server memory replacements

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetSamsung Chipset
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 32GB DDR5 4800MHz capacity for high-throughput server workloads
  • ECC RDIMM registered design with Samsung chipset ensures data integrity
  • 2Rx8 dual-rank organisation increases memory bandwidth efficiency
  • CL40 latency at 1.10V standard DDR5 voltage optimises power draw
  • 288-pin DDR5 DIMM form factor fits compatible server platforms

32GB DDR5 ECC RDIMM for Samsung servers

This 32GB DDR5 4800MHz registered DIMM replaces Samsung M321R4GA3BB0-CQK and M321R4GA3BB6-CQK modules. It delivers ECC error correction and 2Rx8 organisation for server and workstation platforms that require registered memory. The module operates at the standard 1.1V DDR5 voltage with CL40 latency.

Registered DDR5 limits capacity per channel

Registered buffering adds a clock cycle of latency and reduces the maximum number of modules a memory controller can address per channel compared with unbuffered DIMMs. The 4800MHz PC5-38400 speed is the baseline DDR5 data rate; higher frequencies are not supported by this part. System firmware must be configured for registered ECC operation or the module will not initialise.

288-pin DIMM with Samsung chipset implies dense

The 288-pin DDR5 DIMM fits standard server memory slots and uses Samsung ICs in a 2Rx8 EC8 configuration. Registered signalling and ECC parity bits increase trace count on the PCB, so module height matches typical 1U and 2U clearance envelopes. Installers should confirm the motherboard qualifies this exact Samsung part number before deployment.

How it compares

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

Price $981.99
Pricier than about 80% 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 $30.69 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Samsung
Model nameM321R4GA3BB0-CQK, M321R4GA3BB6-CQK
Total capacity32 GB
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8 (EC8)
Power
Rated voltage1.1 V

Questions about this item

How do I confirm this 32GB DDR5 4800MHz module matches the Samsung M321R4GA3BB0-CQK or M321R4GA3BB6-CQK part I need to replace?

Match the Samsung part numbers M321R4GA3BB0-CQK or M321R4GA3BB6-CQK on your existing module or system manual; this A-Tech module is built as a direct replacement for those exact part numbers.

What does the 4800MHz speed rating mean for actual throughput in my server?

The module runs at DDR5 4800, delivering a peak data rate of PC5-38400; real-world throughput depends on your CPU memory controller and how many channels are populated.

Is the 288-pin DDR5 DIMM interface the same as the 262-pin form factor mentioned in some specs?

DDR5 DIMMs use a 288-pin edge connector; the 262-pin count refers to the SO-DIMM form factor used in laptops, not this registered server DIMM.

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