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Four green DDR3L ECC registered DIMMs in anti-static tray

OWC

OWC 1R8T32R4064S 64GB (4x16GB) DDR3L 1866 CL13 ECC Registered RDIMM Server Memory

SKU CH-K83Y-213B0

A 64GB quad-channel DDR3L 1866 CL13 ECC Registered RDIMM kit for servers and workstations

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (4 x 16GB)

Rank 2Rx4

  • ECC registered design protects data integrity in servers
  • 64GB kit with four 16GB modules expands capacity
  • DDR3L 1866 CL13 speed handles demanding workloads
  • 35V low voltage reduces power consumption
  • 240-pin RDIMM form factor fits workstation and server slots

Server-grade DDR3L upgrade kit

This OWC kit supplies 64 GB of DDR3L 1866 memory in four 16 GB registered ECC modules. It is built for workstations, servers, NAS devices and routers that require 240-pin DDR3L RDIMMs. The modules run at 1.35 V with CL13 latency and meet JEDEC and RoHS standards.

Replaces older DDR3L RDIMMs

The kit upgrades systems still running lower-capacity or slower DDR3L registered memory. The jump is worthwhile when the platform supports 1866 MT/s registered DIMMs and the workload benefits from ECC error correction and the full 64 GB capacity across four slots.

Suits ECC registered platforms only

This memory fits servers and workstations that accept 240-pin DDR3L registered ECC modules. It will not work in standard desktop computers or any system that requires unbuffered non-ECC DIMMs. Buyers needing consumer desktop memory should look elsewhere.

How it compares

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

Price $163.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $2.56 per GB
Cheaper than about 91% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R8T32R4064S
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.35 V

Other versions of this model

5 more in the same range

Questions about this item

Will these 240-pin DDR3L RDIMMs fit in a standard desktop motherboard?

No — they are 240-pin DDR3L ECC registered DIMMs made for workstations, servers or NAS systems and will not work in standard desktop boards that expect unbuffered memory.

What is the correct way to populate the four 16 GB modules for dual-channel operation?

Install the modules in matched pairs according to the motherboard manual — typically slots of the same colour — so each channel receives one 16 GB DIMM; a common mistake is placing all four in adjacent slots and leaving the second channel empty.

Do these 1.35 V DDR3L modules need any firmware updates or battery-backed maintenance over time?

No firmware or battery maintenance is required; the modules are JEDEC-compliant DDR3L RDIMMs that operate at 1.35 V and rely on the system's memory controller for ECC scrubbing.

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