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Two green 288-pin DDR4 DIMMs with black heat spreaders and gold contacts

Crucial

Crucial CT2K16G4RFD4213 32GB (2 x 16GB) DDR4 2133 ECC Registered server RAM

SKU CH-TJ19-FCWK7 MPN CT2K16G4RFD4213

ECC registered DDR4 kit delivers 32 GB in two 16 GB modules at 2133 MT/s with CL15 latency and 1.20 V operation

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 32 GB total capacity from two 16 GB modules
  • ECC Registered design detects and corrects single-bit errors
  • DDR4 2133 speed rated at PC4 17000 bandwidth
  • Low 1.20 V operating voltage reduces power draw
  • CL15 CAS latency for responsive server performance

Capacity and configuration

This kit provides 32GB of DDR4 memory across two 16GB modules. It is designed for servers and workstations that require registered ECC modules for data integrity and system stability.

Registered ECC upgrade

The modules add error-correcting code and a register to reduce electrical load on the memory controller. The jump is worthwhile when moving from unbuffered non-ECC memory in a platform that supports registered DIMMs and requires the added reliability for continuous workloads.

Platform compatibility check

Verify that your motherboard and processor support 288-pin DDR4 registered ECC memory at 2133 MT/s with a CL15 latency and 1.20V operating voltage. Confirm the memory controller accepts 2Rx4 organisation and that the system BIOS is configured for registered modules before ordering.

How it compares

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

Price $344.99
Pricier than about 63% 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 $10.78 per GB
Pricier than about 70% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameCrucial
Model nameCT2K16G4RFD4213
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.09 kg
Package size173 × 124 × 13 mm

Questions about this item

Will the 288-pin DDR4 modules fit my server's registered DIMM slots?

Yes, these are 288-pin DDR4 SDRAM modules built to the registered ECC standard, so they install only in server boards that support registered memory.

Do I need to populate specific slots first when installing the 2Rx4 modules?

Most server platforms require you to fill the primary channel slots before adding the second rank; check your motherboard manual for the exact population order.

How long will the 1.20 V DDR4 2133 modules remain reliable in continuous operation?

DDR4 server memory at 1.20 V is rated for years of 24/7 use; replacement is only needed if a module fails or capacity requirements grow.

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