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Green circuit board with gold 240-pin edge connector and black memory chips

OWC

OWC 16GB DDR3L 1866 PC3L-14900 CL13 2Rx4 240-pin 1.35V ECC Registered RDIMM server RAM

SKU CH-ZGJT-KC4NP

Single 16 GB DDR3L 1866 ECC registered DIMM for servers and workstations

  • Total capacity16 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 16GB

Rank 2Rx4

  • ECC registered design protects data integrity in servers
  • 16GB capacity adds substantial memory headroom for workloads
  • DDR3L 1866 speed delivers 14900 MB/s bandwidth
  • 35V low voltage reduces power draw and heat
  • 240-pin RDIMM form factor fits compatible workstation slots

Server Memory Upgrade

This 16GB DDR3L 1866 module is built for workstations, servers and NAS systems that require ECC registered memory. It operates at 1.35V with a CL13 latency and a 2Rx4 rank configuration. The 240-pin RDIMM form factor fits compatible DDR3L slots only.

JEDEC Compliance

The module meets JEDEC and RoHS standards, ensuring a warranty-safe upgrade for supported OEM platforms. No heat spreader is included, relying on standard airflow within the chassis. ECC registered design prevents mixing with unbuffered memory in the same system.

Not for Desktop Builders

Buyers with standard desktop motherboards cannot use this registered ECC memory, as consumer platforms require unbuffered non-ECC modules. Systems limited to 1.5V DDR3 voltage should also look elsewhere. Capacity needs beyond a single 16GB stick require additional compatible modules.

How it compares

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

Price $42.99
Cheaper than about 86% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $2.69 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 number1R8T32R416 GB
Total capacity16 GB
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.35 V

Other versions of this model

5 more in the same range

Questions about this item

Will the ECC registered DIMM need firmware updates or battery replacements over its service life?

No firmware or battery maintenance is required; the module is a passive JEDEC-standard DDR3L component that operates at 1.35 V.

What thermal limit appears first when the 16 GB module runs at 1866 MHz continuously in a populated server chassis?

The registered buffer and 2Rx4 organisation add latency (CL13) and density, so the memory controller's thermal envelope is reached before the DRAM itself.

How much power does the 240-pin RDIMM draw and how much heat does it produce during all-day operation?

At 1.35 V the module draws less power than standard DDR3, and with no heat spreader it relies on chassis airflow to stay cool.

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