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Green circuit board with black memory chips and gold contacts

OWC

OWC 32GB DDR4 2133MHz PC4-17000 CL15 1.2V 288pin ECC Registered RDIMM 2R1D42R432GB memory upgrade

SKU CH-BA42-GA4FT

32 GB DDR4 2133 MHz ECC registered DIMM for Supermicro X10 server motherboards

  • Total capacity32 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 32 GB capacity handles large workloads on compatible Supermicro boards
  • ECC registered design detects and corrects data errors in servers
  • DDR4 2133 MHz CL15 speed matches PC4-17000 specification
  • 2 V operation lowers power use in always-on systems
  • 288-pin RDIMM form factor fits listed X10 and X10SDV motherboards

32GB DDR4 ECC RDIMM for Supermicro X10

This 32GB registered DDR4 module is built for Supermicro X10 server and workstation boards including the X10OBi-CPU, X10QBi, X10QBL-4, X10QBL-4CT and X10SDV-12C-TLN4F. It delivers error-correcting, buffered memory for workloads that require data integrity and sustained uptime. The module is not compatible with standard desktop platforms or unbuffered memory configurations.

288-pin registered DIMM without heat spreader

The stick uses a 288-pin DDR4 RDIMM form factor operating at 1.2V with CL15 latency at 2133MHz. Registered signalling reduces electrical load on the memory controller, allowing larger capacities per channel in multi-socket systems. The absence of a heat spreader keeps the profile low for dense server chassis where airflow is managed by the system fans.

Replaces Supermicro MEMDR432LHL01ER21 and similar

This module directly replaces Supermicro part numbers MEMDR432LHL01ER21, MEMDR432LSL01ER21 and MEMDR432LSV01ER21, extending the service life of existing X10 infrastructure or reducing cost on new builds. The upgrade is worthwhile when ECC registered memory is required and the target board appears on the validated compatibility list. It will not work in systems that only accept unbuffered non-ECC DIMMs.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $200.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.28 per GB
Cheaper than about 63% of the 20,941 comparable items (median $8.19 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 number2R1D42R432 GB
Total capacity32 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
Compatibility
Compatible systemsSupermicro Motherboard X10OBi-CPU
Supermicro Motherboard X10QBi
Supermicro Motherboard X10QBL-4
Supermicro Motherboard X10QBL-4CT
Supermicro Motherboard X10SDV-12C-TLN4F

Other versions of this model

5 more in the same range

Questions about this item

What DDR4 standard and speed does this 32GB RDIMM use, and what throughput ceiling does that impose?

It runs at DDR4 2133 (PC4-17000) with CL15 latency, capping peak bandwidth at 17 GB/s per module.

What physical slot and form factor are required to install this 288-pin ECC registered DIMM?

A standard 288-pin DDR4 DIMM slot on a compatible Supermicro X10-series motherboard; no heat spreader means low-profile clearance.

How is this registered ECC module installed, and what common mistake should be avoided?

Align the notch, press firmly until the retention clips click, and do not mix it with unbuffered memory or install in a desktop board.

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