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Two green DDR4 ECC registered RDIMM modules, bare circuit boards with black chips

OWC

OWC 32GB (2x16GB) DDR4 2400 CL17 ECC Registered RDIMM server RAM

SKU CH-QB4X-5E5SZ

Dual-channel kit provides 32 GB of DDR4 2400 ECC registered memory for servers and workstations

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB (2 x 16GB)

Show 2 more

Rank 2Rx4

  • ECC registered design prevents data corruption in servers
  • Dual-channel 32 GB kit scales memory bandwidth for heavy workloads
  • 2400 MHz DDR4 speed matches PC4-19200 platform specs
  • 2 V operation lowers power draw per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

32GB DDR4 2400 ECC Registered Kit

This 32GB kit contains two 16GB DDR4 2400 ECC registered RDIMM modules. It is built for servers, workstations and NAS systems that require registered memory with error correction. The modules run at 1.2V with CL17 latency and conform to JEDEC PC4-19200 specifications.

Who this suits and who it does not

It suits administrators upgrading or repairing DDR4 registered-ECC platforms that accept 2Rx4 RDIMMs. It will not work in standard desktop PCs or consumer laptops that only support unbuffered non-ECC memory. Buyers who need unbuffered ECC or non-ECC UDIMMs should look at something else.

Registered ECC with 2Rx4 organisation

The registered buffer and 2Rx4 rank layout are the single specification that determines compatibility. Only systems designed for DDR4 registered ECC RDIMMs can use this kit; mixing it with unbuffered memory is not supported.

How it compares

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

Price $210.99
Typical for this category: the median of 6,523 items is $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 $6.59 per GB
Cheaper than about 58% 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 nameOWC
Part number2R4D42R4032P
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

What motherboard slot and DDR generation does this 288-pin DDR4 kit require?

The modules use a 288-pin DDR4 RDIMM form factor and will only fit motherboards with DDR4 registered DIMM slots.

Can I add these CL17 ECC registered modules to a system that already has unbuffered DDR4 memory installed?

No — the kit is ECC registered (2Rx4) and cannot be mixed with unbuffered memory; all slots must use registered modules.

How can I confirm the kit is running at its rated 2400 MT/s and CL17 timings after installation?

Check the BIOS or a tool such as CPU-Z; the memory should report DDR4-2400 (PC4-19200) with CAS latency 17.

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