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Green 288-pin DDR4 RDIMM module with black memory chips no heat spreader

OWC

OWC 2R1D42R416GB 16GB DDR4 2133 ECC Registered RDIMM CL15 2Rx4 1.2V Server Memory

SKU CH-B6YQ-JN910

16GB DDR4 2133 ECC Registered RDIMM CL15 2Rx4 1.2V for server and NAS upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 16 GB DDR4 2133 MHz CL15 boosts multitasking throughput
  • 2 V JEDEC-standard voltage lowers power draw
  • 288-pin RDIMM form factor fits server and NAS slots
  • 2Rx4 dual-rank organisation increases memory density

Server DDR4 ECC RDIMM 16 GB

This 16 GB DDR4 2133 MHz module uses a 288-pin registered DIMM form factor with ECC and a 2Rx4 rank configuration. It operates at 1.2 V and carries a CL15 latency rating. The memory is designed for server, workstation and NAS platforms that require registered ECC modules.

Registered ECC limits on standard desktops

Registered ECC memory cannot be used in standard desktop computers that accept only unbuffered non-ECC modules. Mixing registered and unbuffered DIMMs is not supported and will prevent the system from booting. The DDR4 2133 JEDEC standard defines the electrical and timing parameters for this speed grade.

Verify platform support for registered ECC

Check that your motherboard or NAS explicitly lists support for DDR4 288-pin registered ECC RDIMMs before ordering. Confirm the maximum supported capacity per slot and the total number of available slots. Ensure the system firmware can initialise registered modules at the rated 2133 MHz speed.

How it compares

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

Price $111.99
Cheaper than about 65% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $7.00 per GB
Typical for this category: the median of 6,064 items is $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 number2R1D42R416 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Which OWC DDR4 2133 ECC Registered RDIMM capacity should I select for my server?

This module provides 16GB in a single 288-pin stick. Add more identical modules to reach your platform's maximum supported memory.

What does the PC4-17000 2133MHz rating deliver in a live workload?

It runs at 2133 MT/s with CL15 latency and 1.2V, giving standard JEDEC DDR4 throughput for compatible servers and NAS units.

How does the 288-pin ECC Registered interface limit installation options?

The 288-pin registered DIMM keying fits only DDR4 server, workstation or NAS slots that support ECC registered memory; it will not work in unbuffered desktop boards.

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