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OWC

OWC 64GB DDR4 3200MHz CL22 ECC RDIMM SE350

SKU CH-S48K-FFQBZ

64GB DDR4 3200MHz ECC registered DIMM validated for Lenovo ThinkSystem SE350 servers

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB capacity expands server memory for demanding workloads
  • DDR4 3200MHz speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors to protect data integrity
  • CL22 latency at 1.2V balances responsiveness with power efficiency
  • Validated for Lenovo ThinkSystem SE350 as direct replacement for part 4ZC7A15124

64 GB DDR4 ECC RDIMM for Lenovo ThinkSystem SE350

This 64 GB DDR4 3200 MHz CL22 registered DIMM is built for the Lenovo ThinkSystem SE350 server. It delivers error-correcting code memory with 2Rx4 organisation and operates at 1.2 V. The module is intended for administrators who need to expand or repair memory in that specific platform.

Sustained-load behaviour with ECC registered design

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC detects and corrects single-bit errors to maintain data integrity under long-running workloads. The CL22 latency at 3200 MHz provides stable throughput for virtualisation and database tasks. JEDEC compliance ensures consistent timing across all populated slots.

Verify slot count and existing DIMM population

Confirm the SE350 has an available 288-pin DDR4 slot before ordering. Registered ECC modules cannot be mixed with unbuffered memory in the same system. All installed DIMMs should match capacity, speed and manufacturer for optimal performance. This module replaces Lenovo part number 4ZC7A15124.

How it compares

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

Price $413.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.47 per GB
Cheaper than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D42R464 GB
Total capacity64 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
Compatibility
Compatible systemsLenovo ThinkSystem SE350

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.2V DDR4 3200 module draw when the SE350 runs continuously?

The module operates at 1.2V, the standard DDR4 voltage, so power draw stays within JEDEC limits for registered ECC DIMMs during all-day server workloads.

What must the ThinkSystem SE350 already have to accept this 288-pin RDIMM?

The SE350 needs free DDR4 RDIMM slots that support ECC registered memory; the system cannot use unbuffered DIMMs alongside this module.

Can I keep the existing Lenovo 4ZC7A15124 sticks and add this 64GB 2Rx4 kit?

Yes — this OWC DIMM replaces the 4ZC7A15124 part number, so it can be installed alongside identical-capacity registered ECC modules for matched performance.

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