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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 16GB DDR3 1600 PC3-12800 CL11 2Rx4 240-pin 1.5V ECC Registered RDIMM

SKU CH-VJJ6-HE5JT

16 GB DDR3 ECC registered RDIMM for servers and NAS, running at 1600 MHz with CL11 latency

  • Total capacity16 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 16GB capacity expands memory for demanding workloads
  • DDR3 1600 speed matches PC3-12800 specification
  • JEDEC compliant module ensures broad server compatibility
  • 5V operation meets standard registered DIMM requirements

Server-grade DDR3 ECC RDIMM

This 16 GB DDR3-1600 registered DIMM is built for workstations, servers and compatible NAS appliances that require ECC error correction. It operates at 1.5 V with CL11 latency and a 2Rx4 organisation across 240 pins.

Sustained-load behaviour

ECC circuitry detects and corrects single-bit errors in real time, preventing data corruption during long compute runs or continuous file-serving workloads. Registered buffering reduces electrical load on the memory controller, helping stability when multiple modules populate a channel.

Compatibility checklist

Verify that your platform explicitly supports DDR3 ECC registered memory; standard desktop boards and unbuffered-only systems will not accept this module. Confirm the motherboard or NAS vendor lists 16 GB RDIMMs at 1600 MT/s and 1.5 V operation. Do not mix with unbuffered DIMMs.

How it compares

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

Price $49.99
Cheaper than about 84% 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 $3.12 per GB
Cheaper than about 88% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1R6D32R416 GB
Total capacity16 GB
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V

Questions about this item

How much power does the 1.5V DDR3 1600 module draw when the server runs continuously?

The module operates at the standard 1.5V DDR3 voltage; actual power draw depends on your platform's memory controller and workload, so consult the system manual for precise figures.

What must my motherboard provide to use this 240-pin ECC Registered RDIMM?

A DDR3 240-pin slot that supports registered ECC memory; the board must accept 2Rx4 modules at PC3-12800 speed and run at 1.5V.

Can I add this 16GB stick alongside the 8GB unbuffered DIMMs already in my NAS?

No — registered ECC RDIMMs cannot be mixed with unbuffered memory; all slots must use registered ECC modules of matching specification.

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