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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 2E6V42R816GB 16GB DDR4 2666 CL19 2Rx8 VLP ECC UDIMM

SKU CH-9ZJZ-6WTAJ

16 GB DDR4 2666 ECC VLP UDIMM for Supermicro X11SCA and X11SCH motherboards

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16 GB capacity boosts multitasking headroom
  • DDR4 2666 CL19 speed matches system spec
  • ECC protection guards data integrity
  • 2 V VLP design fits dense Supermicro boards
  • JEDEC and RoHS compliant for warranty-safe upgrades

16GB DDR4 2666 ECC VLP module

This 16GB DDR4 2666 CL19 module is built for Supermicro X11SCA and X11SCH server boards. It delivers 2Rx8 unbuffered ECC operation at 1.2V in a very low-profile 288-pin UDIMM form factor. The part number 2E6V42R816GB identifies a single DIMM validated for those specific platforms.

Fits X11SCA and X11SCH motherboards

Installation uses a standard 288-pin DDR4 slot on the listed Supermicro models. The very low profile height clears tight heatsink or airflow spaces inside 1U and 2U chassis. JEDEC and ROHS compliance ensures the upgrade does not void the original system warranty.

Suits admins upgrading validated Supermicro servers

This module targets administrators adding capacity to X11SCA-F, X11SCA-W, X11SCH-F, X11SCH-LN4F or X11SCL-F boards. Builders needing registered DIMMs, higher speeds, non-ECC memory or support for other motherboards should look elsewhere.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $162.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $10.19 per GB
Typical for this category: the median of 20,941 items is $8.19 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 number2E6V42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC VLP UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro Motherboard X11SCA-F
Supermicro Motherboard X11SCA-W
Supermicro Motherboard X11SCH-F
Supermicro Motherboard X11SCH-LN4F
Supermicro Motherboard X11SCL-F

Questions about this item

What is the thermal limit reached first when this VLP ECC UDIMM runs at 2666 MT/s continuously?

The module operates at 1.2 V with no heat spreader, so sustained load will hit the DRAM junction temperature limit before any other constraint.

How much extra heat and power does this 16 GB stick add to a chassis running all day?

At 1.2 V and DDR4 2666 speed the module draws only a few watts and produces minimal heat, keeping noise impact negligible in a populated system.

Which motherboard must already be installed for this 288-pin DDR4 2666 CL19 2Rx8 VLP ECC UDIMM to work?

It is validated for Supermicro X11SCA-F, X11SCA-W, X11SCH-F, X11SCH-LN4F and X11SCL-F boards; one of those must be present.

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