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Green printed circuit board with black memory chips in a row, gold edge connector, no heat spreader

OWC

OWC 32GB DDR4 3200 ECC Registered RDIMM 288-Pin 2Rx4 CL22 1.2V server RAM

SKU CH-8CH4-NJDG3

32 GB DDR4 3200 ECC registered RDIMM, 288-pin 2Rx4 CL22 at 1.2 V for server upgrades

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC protection prevents data corruption in critical workloads
  • Registered design enables stable operation at 32GB capacity
  • 3200MHz speed delivers 25600MB/s bandwidth for demanding applications
  • 2V operation reduces power draw and heat output
  • 2Rx4 dual-rank architecture maximises memory density per slot

Server-grade DDR4 ECC RDIMM

This 32GB OWC module delivers DDR4 3200 performance with ECC registered operation for workstations and servers. The 288-pin RDIMM form factor fits compatible server motherboards that require registered memory. It is not compatible with standard desktop computers or unbuffered memory configurations.

JEDEC-compliant registered design

Built to JEDEC-standard specifications at 1.2V with CL22 latency and 2Rx4 organisation. The registered buffer reduces electrical load on the memory controller for stable operation in multi-DIMM server environments. No heat spreader is included, allowing dense side-by-side population in qualified chassis.

Direct replacement for Supermicro parts

Matches the exact specifications of Supermicro MEM-DR432L-HL01-ER32, MEM-DR432L-HL02-ER32 and MEM-DR432L-SL02-ER32 modules. This compatibility simplifies procurement when maintaining or expanding existing Supermicro infrastructure. OWC tests every module in-house to meet or exceed OEM requirements.

How it compares

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

Price $230.99
Pricier than about 54% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $7.22 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 number3R2D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

What speed does the DDR4 3200 PC4-25600 interface actually run at?

The module operates at DDR4 3200 MT/s, which is the PC4-25600 data rate; the system memory controller sets the final speed based on CPU support and DIMM population rules.

What physical slot and clearance does this 288-pin RDIMM require?

It fits a standard DDR4 288-pin RDIMM socket; the module has no heat spreader, so it sits at the nominal JEDEC height for 1U and 2U server chassis.

How is this ECC Registered DIMM installed, and what step is often missed?

Power off the server, open the chassis, align the notch with the keyed slot, press firmly until both ejector tabs click; then enter BIOS to confirm ECC and registered mode are active.

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