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Two black DDR5 RDIMMs with silver heat spreaders and gold contacts

XPG

XPG AX5R6400C3216G-DTAIRBK 32GB (2x16GB) DDR5 6400 CL32 ECC Registered server RAM

SKU CH-Z8AX-F9HM8 MPN AX5R6400C3216G-DTAIRBK

32 GB dual-channel DDR5-6400 RDIMM kit with ECC, registered buffer, CL32 timing and 1.40 V operation

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • CAS latencyCL32
  • Memory timings32-39-39
  • Rated voltage1.4 V
  • Buffer typeRegistered
  • ECC Registered design protects data integrity in critical workloads
  • Dual-channel 32 GB kit (2 × 16 GB) doubles memory bandwidth
  • DDR5 6400 speed with CL32 32-39-39 timings accelerates throughput
  • Register Clock Driver and on-die plus side-band ECC stabilise operation
  • 30 µ gold-plated connectors and thermal sensor enhance long-term reliability

32GB DDR5 6400 ECC RDIMM kit

This 32GB dual-channel kit uses 288-pin DDR5 RDIMM modules rated at 6400 MT/s with CL32 32-39-39 timings at 1.40V. Registered design and on-die plus side-band ECC target server and workstation platforms that require registered memory with error correction.

Upgrade from slower or non-ECC DDR5

Replacing lower-speed DDR5 or unbuffered ECC modules adds the register clock driver and dual ECC layers needed for multi-DIMM stability in registered-memory slots. The jump is worth it when the platform demands registered DIMMs and the workload benefits from 6400 MT/s throughput.

32GB capacity for virtualization and databases

Two 16GB modules provide 32GB total, handling typical virtualization hosts, database buffers and compute nodes. Workloads needing more than 32GB per channel or higher densities will require larger-capacity RDIMMs or additional memory channels beyond this kit.

How it compares

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

Price $725.99
Pricier than about 76% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $22.69 per GB
Pricier than about 84% 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
Brand nameXPG
Product lineAICORE
Model nameAX5R6400C3216G-DTAIRBK
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Memory
CAS latencyCL32
Memory timings32-39-39
ECC supportYes
Buffer typeRegistered
Kit configurationDual Channel Kit
Heat spreaderYes
Power
Rated voltage1.4 V
Size & build
Shipping weight0.09 kg
Package size171 × 142 × 13 mm

Questions about this item

Does this 288-pin DDR5 RDIMM fit a standard server DIMM slot?

Yes, the 288-pin DDR5 RDIMM form factor matches standard registered DIMM slots on compatible server motherboards.

What BIOS setting should I check after installing these 1.40V registered modules?

Verify the memory runs at DDR5 6400 with CL32 32-39-39 timings and that the registered clock driver is recognised by the platform.

When should I consider replacing these ECC registered sticks?

Replace them if the on-die ECC or side-band ECC logs uncorrectable errors, or if the temperature sensor reports sustained overheating.

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