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Eight black DDR3L UDIMM modules in anti-static packaging

OWC

OWC 64GB (8x8GB) DDR3L 1866 CL13 ECC UDIMM Kit

SKU CH-3CY2-H64AM

Eight 8 GB DDR3L 1866 ECC unbuffered DIMMs totalling 64 GB at 1.35 V for workstations and servers

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (8 x 8GB)

  • 64 GB capacity across eight 8 GB modules for high-density memory configurations
  • DDR3L 1866 MHz speed rated at PC3L-14900 for responsive data throughput
  • CL13 CAS latency at 1.35 V low voltage for efficient timing and power draw
  • ECC unbuffered design with 240-pin UDIMM form factor for error-correcting reliability in workstations and servers
  • JEDEC and RoHS compliant 2Rx8 organisation ensuring broad platform compatibility and standards adherence

Capacity and Purpose

This kit provides 64GB of DDR3L memory across eight 8GB modules for desktop workstations, servers or NAS systems that require ECC protection. The unbuffered design suits platforms that do not accept registered DIMMs.

JEDEC Compliance and Voltage

Modules meet JEDEC PC3L-14900 specifications at 1.35V, ensuring a warranty-safe upgrade without raising system voltage. RoHS compliance confirms restricted-substance limits are observed.

Installation Notes

Each 240-pin UDIMM installs in standard DDR3 slots; the kit is labelled as a dual-channel set but contains eight identical sticks. Systems must support 1866MHz DDR3L ECC unbuffered memory or the modules will not function.

How it compares

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

Price $246.99
Pricier than about 72% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $3.86 per GB
Cheaper than about 85% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number1E8T32R8064K
Total capacity64 GB (8 × 8 GB)
Product colorBlack
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Other versions of this model

5 more in the same range

Questions about this item

Will the eight 8GB DDR3L modules need any periodic cleaning or fan maintenance?

The modules have no heat spreader and no moving parts, so no cleaning or fan maintenance is required; only reseat them if a slot contact oxidises over time.

What limit appears first when the 1.35V CL13 kit runs at 1866 MT/s continuously?

The DDR3L JEDEC voltage ceiling of 1.35V is reached before any thermal throttle, so sustained load stays within spec without extra cooling.

How much heat and noise do the 240-pin ECC UDIMMs add to a workstation running all day?

With no heat spreader and 1.35V operation, each 8GB stick adds minimal warmth and zero acoustic noise, leaving system thermals and fan curves unchanged.

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