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Green circuit board with black memory chips, no heat spreader, 288 gold pins

OWC

OWC 16GB DDR4 2666 CL19 ECC Unbuffered VLP desktop RAM

SKU CH-VZGH-JEGV7

16 GB DDR4 2666 ECC unbuffered VLP DIMM for workstations, servers and NAS systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forWorkstations, Servers, and NAS Systems
  • 16 GB capacity for larger workloads
  • DDR4 2666 speed for responsive data handling
  • CL19 latency for efficient timing cycles
  • ECC unbuffered design for data integrity
  • VLP 288-pin form factor fits compact systems

ECC Unbuffered DIMM for Workstations

This 16GB DDR4 module runs at 2666 MT/s with CL19 latency and 1.2V operation. It targets workstations, servers and NAS systems that require error-correcting code memory. The unbuffered 2Rx8 design fits standard 288-pin desktop slots without registration overhead. JEDEC and ROHS compliance ensures a warranty-safe upgrade path.

Thermals and Power in Normal Use

Operating at the standard 1.2V keeps power draw low and heat output minimal during typical workloads. No heat spreader is fitted, so the VLP profile relies on case airflow for cooling. The low voltage and absence of LEDs contribute to quiet, efficient operation in densely populated DIMM banks.

What the Bundle Changes

The module ships as a single 16GB DIMM with no extra cables, brackets or software utilities. OWC validates every stick in-house to meet or exceed OEM specifications for the listed Hynix and Micron part numbers. A limited lifetime warranty and free technical support back the upgrade, but no installation media or monitoring tools are included.

How it compares

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

Price $152.99
Pricier than about 61% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $9.56 per GB
Pricier than about 65% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number2E6V42R816 GB
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Questions about this item

How do I install the 288-pin VLP DIMM and what step do people often miss?

Power off the system, open the case, align the notch on the 288-pin module with the slot key, press firmly until both retention clips click, then verify in BIOS that the module reports 16 GB at 2666 MT/s and ECC is enabled; the step most often missed is confirming ECC mode in firmware after the physical install.

What maintenance or replacement will the 16 GB ECC unbuffered module need later?

No scheduled maintenance is required; keep interior dust-free and ensure the 1.2 V supply remains stable. If a correctable error count rises or the system logs uncorrectable ECC events, replace the module — otherwise it runs for the system life.

What limit appears first when the 2Rx8 CL19 kit runs sustained workloads?

The JEDEC 1.2 V / CL19 timing ceiling is reached before thermal throttling; sustained write/read streams max out at the rated 2666 MT/s bandwidth, so throughput plateaus at the spec data rate rather than hitting a temperature wall.

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