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Four black DDR3L UDIMM sticks in a kit

OWC

OWC 16GB (4x4GB) DDR3L 1866 CL13 ECC UDIMM desktop RAM

SKU CH-NFKX-Z9464

A 16GB kit of four 4GB DDR3L 1866 CL13 ECC unbuffered UDIMMs running at 1.35V for workstations, servers or NAS systems

  • Capacity16GB (4 x 4GB)
  • SpeedDDR3L 1866 (PC3L 14900)
  • CAS LatencyCL13
  • Voltage1.35V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 16GB (4 x 4GB)

  • 16 GB total capacity from four 4 GB modules for expanded multitasking
  • DDR3L 1866 MHz speed with CL13 latency for responsive data access
  • 35 V low-voltage operation reduces power draw and heat
  • ECC unbuffered design detects and corrects single-bit errors for data integrity
  • JEDEC and RoHS compliant for warranty-safe upgrades in workstations and servers

16 GB DDR3L ECC Kit

This kit provides 16 GB of DDR3L memory in four 4 GB unbuffered UDIMMs. Each module runs at 1866 MT/s with CL13 latency at 1.35 V and includes ECC for data integrity. The 240-pin DIMMs are designed for desktop workstations, servers and NAS systems that support DDR3L ECC unbuffered memory.

Suitability and limits

The kit suits users upgrading compatible workstations, servers or NAS units that require DDR3L ECC unbuffered DIMMs at 1866 MT/s. Systems needing registered or fully buffered DIMMs, non-ECC memory, a different voltage or a higher speed grade will not work with these modules.

Deciding specification

ECC unbuffered operation at 1.35 V is the single specification that determines compatibility; the motherboard must explicitly support DDR3L ECC unbuffered UDIMMs for the kit to function.

Highlights

  • 16 GB total capacity from four 4 GB modules for expanded multitasking
  • DDR3L 1866 MHz speed with CL13 latency for responsive data access
  • 35 V low-voltage operation reduces power draw and heat
  • ECC unbuffered design detects and corrects single-bit errors for data integrity
  • JEDEC and RoHS compliant for warranty-safe upgrades in workstations and servers

Specifications

BrandOWC
Part Number1E8T31R8016S
Capacity16GB (4 x 4GB)
SpeedDDR3L 1866 (PC3L 14900)
CAS LatencyCL13
Voltage1.35V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Questions about this item

How do I install the four 4GB DDR3L 240-pin modules in a dual-channel configuration?

Power down the system, open the case, align each module's notch with the slot key, press firmly until the retention clips click, and populate the paired slots indicated by the motherboard manual for dual-channel operation.

Will the ECC unbuffered DDR3L modules require any firmware updates or periodic replacement?

ECC unbuffered DDR3L modules have no firmware and no moving parts; they do not require scheduled replacement unless a memory test reports correctable errors that exceed the platform's reporting threshold.

At what point does the 1.35 V DDR3L 1866 CL13 kit hit its thermal or stability limit during sustained workloads?

The modules lack heat spreaders, so prolonged heavy loads may raise DRAM temperatures until the system's memory thermal throttling engages, which is the first practical limit encountered.

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